Publications of Paavo Alku

January 20, 2026

I Articles in international journals:

Paavo Alku: Glottal wave analysis with Pitch Synchronous Iterative Adaptive Inverse Filtering, Speech Communication, Vol. 11, No. 2-3, pp. 109-118, 1992.
Paavo Alku, Erkki Vilkman: Preliminary experiences in using automatic inverse filtering of acoustical signals for the voice source analysis, Scandinavian Journal of Logopedics and Phoniatrics, Vol. 17, pp. 128-135, 1992.
Paavo Alku, Erkki Vilkman, Eeva Pekkarinen: PAAPPA - a flexible computer environment for the analysis of the voice source, Scandinavian Journal of Logopedics and Phoniatrics, Vol. 18, No. 2-3, pp. 51-56, 1993.
Erkki Vilkman, Paavo Alku, Anne-Maria Laukkanen: Vocal-fold collision mass as a differentiator between registers in the low-pitch range, Journal of Voice, Vol. 9, No. 1, pp. 66-73, 1995.
Paavo Alku, Erkki Vilkman: Effects of bandwidth on glottal airflow waveforms estimated by inverse filtering, J. Acoust. Soc. Am., Vol. 98, No. 2, pp. 763-767, 1995.
Anne-Maria Laukkanen, Päivi Lindholm, Erkki Vilkman, Esa Haataja, Paavo Alku: A Physiological and acoustical study on voiced bilabial fricative /b::/ as a vocal exercise, Journal of Voice, Vol. 10, No. 1, pp. 67-77, 1996.
Paavo Alku, Erkki Vilkman: Amplitude domain quotient for characterization of the glottal volume velocity waveform estimated by inverse filtering, Speech Communication, Vol. 18, No. 2, pp. 131-138 , 1996.
Paavo Alku, Erkki Vilkman: A comparison of glottal voice source quantification parameters in breathy, normal, and pressed phonation of female and male speakers, Folia Phoniatrica et Logopaedica, Vol. 48, No. 5, pp. 240-254, 1996.
Anne-Maria Laukkanen, Erkki Vilkman, Paavo Alku, Hanna Oksanen: Physical variations related to stress and emotional state: a preliminary study, Journal of Phonetics, Vol. 24, No. 3, pp. 313-335, 1996.
Risto Näätänen, Anne Lehtokoski, Mietta Lennes, Marie Cheour, Minna Huotilainen, Antti Iivonen, Martti Vainio, Paavo Alku, Risto J. Ilmoniemi, Aavo Luuk, Jüri Allik, Janne Sinkkonen, Kimmo Alho: Language-specific phoneme representations revealed by electric and magnetic brain responses, Nature, Vol. 385, pp. 432-434, Jan. 30, 1997.
Eija-Riitta Lauri, Paavo Alku, Erkki Vilkman, Eeva Sala, Marketta Sihvo: Effects of prolonged oral reading on time-based glottal flow waveform parameters with special reference to gender differences, Folia Phoniatrica et Logopaedica, Vol. 49, pp. 234-246, 1997.
Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Loading changes in time-based parameters of glottal flow waveforms in different ergonomic conditions, Folia Phoniatrica et Logopaedica, Vol. 49, pp. 247-263, 1997.
Paavo Alku, Helmer Strik, Erkki Vilkman: Parabolic Spectral Parameter - A new method for quantification of the glottal flow, Speech Communication, Vol. 22, pp. 67-79, 1997.
Anne-Maria Laukkanen, Erkki Vilkman, Paavo Alku, Hanna Oksanen: On the perception of emotions in speech: The role of voice quality, Logopedics, Phoniatrics and Vocology, Vol. 22, pp. 157-168, 1997.
Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Ergonomic conditions and voice, Logopedics, Phoniatrics and Vocology, Vol. 23, pp. 11-20, 1998.
Susanna Varho, Paavo Alku: Separated Linear Prediction - A new all-pole modeling technique for speech analysis, Speech Communication, Vol. 24, No. 2, pp. 111-121, 1998.
Paavo Alku, Erkki Vilkman, Anne-Maria Laukkanen: Estimation of amplitude features of the glottal flow by inverse filtering speech pressure signals, Speech Communication, Vol. 24, No. 2, pp. 123-132, 1998.
Paavo Alku, Erkki Vilkman, Anne-Maria Laukkanen: Parameterization of the voice source by combining spectral decay and amplitude features of the glottal flow, Journal of Speech, Language, and Hearing Research, Vol. 41, pp. 990-1002, 1998.
Yury Shtyrov, Teija Kujala, Jyrki Ahveninen, Mari Tervaniemi, Paavo Alku, Risto Ilmoniemi, Risto Näätänen: Background acoustic noise and the hemispheric lateralization of speech processing in the human brain: magnetic mismatch negativity study, Neuroscience Letters, Vol. 251, No. 2, pp. 141-144, 1998.
Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Marketta Sihvo: Effects of prolonged oral reading on F0, SPL, subglottal pressure and amplitude characteristics of glottal flow waveforms, Journal of Voice, Vol. 13, No. 2, pp. 303-315, 1999.
Marketta Sihvo, Paavo Alku, Eija-Riitta Lauri, Eeva Sala, Erkki Vilkman: Effects of ergonomic and environmental factors on phonation at a low pitch, Logopedics, Phoniatrics and Vocology, Vol. 24, pp. 84-91, 1999.
Istvan Winkler, Anne Lehtokoski, Paavo Alku, Martti Vainio, Istvan Czigler, Valeria Csepe, Olli Aaltonen, Ilkka Raimo, Kimmo Alho, Heikki Lang, Antti Iivonen, Risto Näätänen: Pre-attentive detection of vowel contrasts utilizes both phonetic and auditory memory representations, Cognitive Brain Research, Vol. 7, pp. 357-369, 1999.
Istvan Winkler, Teija Kujala, Hannu Tiitinen, Päivi Sivonen, Paavo Alku, Anne Lehtokoski, Istvan Czigler, Valeria Csepe, Risto Ilmoniemi, Risto Näätänen: Brain responses reveal the learning of foreign language phonemes. Psychophysiology, Vol. 36, pp. 638-642, 1999.
Teemu Rinne, Kimmo Alho, Paavo Alku, Markus Holi, Janne Sinkkonen, Juha Virtanen, Olivier Bertrand, Risto Näätänen: Analysis of speech sounds is left-hemisphere predominant at 100-150 ms after sound onset. NeuroReport, Vol. 10(5), pp. 1113-1117, 1999.
Paavo Alku, Hannu Tiitinen, Risto Näätänen: A method for generating natural-sounding speech stimuli for cognitive brain research. Clinical Neurophysiology, Vol. 110, pp. 1329-1333, 1999.
Paavo Alku, Juha Vintturi, Erkki Vilkman: On the linearity of the relationship between the sound pressure level and the negative peak amplitude of the differentiated glottal flow in vowel production. Speech Communication, Vol. 28, pp. 269-281, 1999.
Hannu Tiitinen, Päivi Sivonen, Paavo Alku, Juha Virtanen, Risto Näätänen: Electromagnetic recordings reveal latency differences in speech and tone processing in humans. Cognitive Brain Research, Vol. 8, pp. 355-363, 1999.
Maria Jaramillo, Paavo Alku, Petri Paavilainen: An event-related potential (ERP) study of duration changes in speech and non-speech sounds. NeuroReport, Vol. 10, pp. 3301-3305, 1999.
Marja-Liisa Kaipio, Marie Cheour, Rita Ceponiene, Juha Öhman, Paavo Alku, Risto Näätänen: Increased distractibility in closed head injury as revealed by event-related potentials. NeuroReport, Vol. 11, No. 7, pp. 1463-1468, 2000.
Kalle Palomäki, Paavo Alku, Ville Mäkinen, Patrick May, Hannu Tiitinen: Sound localization in the human brain: Neuromagnetic observations. NeuroReport, Vol. 11, No. 7, pp. 1535-1538, 2000.
Paavo Alku, Juha Vintturi, Erkki Vilkman: Evidence of the significance of secondary excitations of the vocal tract on vocal intensity. Folia Phoniatrica et Logopaedica, Vol. 53, No. 4, pp. 185-197, 2001.
Juha Vintturi, Paavo Alku, Eija-Riitta Lauri, Eeva Sala, Marketta Sihvo, Erkki Vilkman: Objective analysis of vocal warm-up with special reference to ergonomic factors. Journal of Voice, Vol. 15, No. 1, pp. 36-53, 2001.
Elene Kushnerenko, Marie Cheour, Rita Ceponiene, Vineta Fellman, Martin Renlund, K. Soininen, Paavo Alku, M. Koskinen, Kimmo Sainio, Risto Näätänen: Central auditory processing of durational changes in complex speech patterns by newborns: An event-related brain potential study. Developmental Neuropsychology, Vol. 19, No. 1, pp. 83-97, 2001.
Juha Vintturi, Paavo Alku, Eija-Riitta Lauri, Eeva Sala, Marketta Sihvo, Erkki Vilkman: The effects of post-loading rest on acoustic parameters with special reference to gender and ergonomic factors. Folia Phoniatrica et Logopaedica, Vol. 53, No. 6. pp. 338-350, 2001.
Paavo Alku, Päivi Sivonen, Kalle Palomäki, Hannu Tiitinen: The periodic structure of vowel sounds is reflected in human electromagnetic brain responses. Neuroscience Letters, Vol. 298, No. 1, pp. 25-28, 2001.
Rita Ceponiene, Anna Shestakova, Polina Balan, Paavo Alku, Kyoshi Yiaguchi, Risto Näätänen: Children's auditory event-related potentials index stimulus complexity and "speechness". International Journal of Neuroscience, Vol. 109, pp. 245-260, 2001.
Erkki Vilkman, Paavo Alku, Juha Vintturi: Dynamic extremes of voice in the light of time domain parameters extracted from the amplitude features of glottal flow and its derivative. Folia Phoniatrica et Logopaedica, Vol. 54, No. 3, pp. 144-157, 2002.
Friedemann Pülvermuller, Teija Kujala, Yury Shtyrov, Jaana Simola, Hannu Tiitinen, Paavo Alku, Kimmo Alho, Sami Martinkauppi, Risto Ilmoniemi, Risto Näätänen. Memory traces for words as revealed by the Mismatch Negativity (MMN). NeuroImage, Vol. 14, pp. 607-616, 2001.
Rita Ceponiene, Kyoshi Yiaguchi, Anna Shestakova, Paavo Alku, Suominen, Risto Näätanen: Sound complexity and "speechness" effects on preattentive auditory discrimination in children. International Journal of Neuroscience, Vol. 109, pp. 245-260, 2001.
Maria Jaramillo, Titta Ilvonen, Teija Kujala, Paavo Alku, Mari Tervaniemi, Kimmo Alho: Are different kinds of acoustic features processed differently for speech and non-speech sounds? Cognitive Brain Research, Vol. 12, pp. 459-466, 2001.
Minna Huotilainen, Teija Kujala, Paavo Alku: Long-term memory traces facilitate short-term memory trace formation in audition in humans. NeuroScience Letters, Vol. 310, No. 2-3, pp. 133-136, 2001.
Paavo Alku, Juha Vintturi, Erkki Vilkman: Measuring the effect of fundamental frequency raising as a strategy for increasing vocal intensity in soft, normal, and loud phonation. Speech Communication, Vol. 38, No. 3-4, pp. 321-334, November 2002.
Tom Bäckström, Paavo Alku, Erkki Vilkman: Time-domain parameterization of the closing phase of glottal airflow waveform from voices over a large intensity range. IEEE Transactions on Speech and Audio Processing, Vol. 10, No. 3, pp. 186-192, March 2002.
Kalle J. Palomäki, Hannu Tiitinen, Ville Mäkinen, Patrick May, Paavo Alku: Cortical processing of speech sounds and their analogues in a spatial auditory environment. Cognitive Brain Research, Vol. 14, Issue 2, pp. 294-299, August 2002.
Paavo Alku, Tom Bäckström, Erkki Vilkman: Normalized amplitude quotient for parameterization of the glottal flow. Journal of the Acoustical Society of America, Vol. 112, No. 2, pp. 701-710, August 2002.
Marie Cheour, Anna Shestakova, Paavo Alku, Rita Ceponiene, Risto Näätänen: Mismatch negativity shows that 3-6-year-old children can learn to discriminate non-native speech sounds within two months, Neuroscience Letters Vol. 325, No. 3, pp. 187-190, 2002.
Anna-Mari Mäkelä, Paavo Alku, Ville Mäkinen, Jussi Valtonen, Patrick May, Hannu Tiitinen: Human cortical dynamics determined by speech fundamental frequency, NeuroImage, Vol. 17, No. 3, pp. 1300-1305, Nov 2002.
W. Bastiaan Kleijn, Tom Bäckström, Paavo Alku: On line spectral frequencies, IEEE Signal Processing Letters, Vol. 10, No. 3, pp. 75-77, March 2003.
Tom Bäckström, Paavo Alku: All-pole modeling technique based on weighted sum of LSP polynomials, IEEE Signal Processing Letters, Vol. 10, No. 6, pp. 180-183, June 2003.
Anu Kujala, Kimmo Alho, Saija Valle, Päivi Sivonen, Risto J. Ilmoniemi, Paavo Alku, Risto Näätänen: Context modulates processing of speech sounds in the right auditory cortex of human subjects, Neuroscience Letters Vol. 331, pp. 91-94, 2002.
Rita Ceponiene, Tuulia Lepistö, Paavo Alku, Heikki Aro, Risto Näätänen: Event-related potential indices of auditory vowel processing in 3-year-old children. Clinical Neurophysiology, Vol. 114, Issue 4, pp. 652-661, 2003.
Rita Ceponiene, Tuulia Lepistö, Anna Shestakova, Raija Vanhala, Paavo Alku, Risto Näätänen, Kyoshi Yaguchi: Speech-sound selective auditory impairment in autism: can perceive but do not attend. PNAS (Proceedings of the National Academy of Sciences of the United States of America), Vol. 100, No. 9, pp. 5567-5572, April 19, 2003.
Laura Lehto, Leena Rantala, Erkki Vilkman, Paavo Alku, Tom Bäckström: Experiences of a short vocal training course for call-centre customer service advisors. Folia Phoniatrica et Logopaedica, Vol. 55, pp. 163-176, 2003.
Tom Bäckström, Laura Lehto, Paavo Alku, Erkki Vilkman: Automatic pre-segmentation of running speech improves the robustness of several acoustic voice measures. Logopedics Phoniatrics Vocology, Vol. 28, No. 3, pp. 101-108, Oct. 2003.
Eira Jansson-Verkasalo, Rita Ceponiene, Marita Valkama, Leena Vainionpää, Kyösti Laitakari, Paavo Alku, Kalervo Suominen, Risto Näätänen: Deficient speech-sound processing, as shown by the electrophysiologic brain mismatch negativity response, and naming ability in prematurely born children. Neuroscience Letters, Vol. 348, pp. 5-8, 2003.
Tom Bäckström, Paavo Alku: A constrained linear predictive model with the minimum-phase property. Signal Processing, Vol. 83, pp. 2259-2264, 2003.
Rita Ceponiene, Tuulia Lepistö, Mika Soininen, Eeva Aronen, Paavo Alku, Risto Näätänen: Event-related potentials associated with sound discrimination versus novelty detection in children. Psychophysiology, Vol. 41, Issue 1, pp. 130-141, 2004.
Istvan Winkler, Teija Kujala, Paavo Alku, Risto Näätänen: Language context and phonetic change detection. Cognitive Brain Research, Vol. 17, pp. 833-844, 2003.
Catharine Pettigrew, Bruce Murdoch, Joseph Kei, Helen Chenery, Curtis Ponton, Simon Finnigan, Paavo Alku: Processing of English words with fine acoustic contrasts and simple tones: A mismatch negativity study. Journal of the American Academy of Audiology, Vol. 15, No. 1, pp. 47-66, Jan. 2004.
Anna Mari Mäkelä, Paavo Alku, Hannu Tiitinen: The auditory N1m reveals the left-hemispheric representation of vowel identity in humans. Neuroscience Letters, Vol. 353, pp. 111-114, 2003.
Paavo Alku, Tom Bäckström: Linear predictive method for improved spectral modeling of lower frequencies of speech with small prediction orders. IEEE Transactions on Speech and Audio Processing, Vol. 12, No. 2, pp. 93-99, March 2004.
Tom Bäckström, Paavo Alku, Tuomas Paatero, Bastiaan Kleijn: A time domain interpretation for the LSP decomposition. IEEE Transactions on Speech and Audio Processing. Vol. 12, No. 6, pp. 554-560, Nov. 2004.
Eira Jansson-Verkasalo, Pirjo Korpilahti, Ville Jäntti, Marita Valkama, Leena Vainionpää, Paavo Alku, Kalervo Suominen, Risto Näätänen: Neurophysiologic correlates of deficient phonological representations and object naming in prematurely born children. Clinical Neurophysiology, Vol. 115, Issue 1, pp. 179-187, 2004.
Johan Sundberg, Margareta Thalen, Paavo Alku, Erkki Vilkman: Estimating perceived phonatory pressedness in singing from flow glottograms. Journal of Voice, Vol. 18, Issue 1, pp. 56-62, 2004.
Catharine Pettigrew, Bruce Murdoch, Curtis Ponton, Joseph Kei, Helen Chenery, Paavo Alku: Subtitled videos and mismatch negativity (MMN) investigations of spoken word processing. Journal of the American Academy of Audiology. Vol. 15, No. 7, pp. 469-485, 2004.
Elyse Sussman, Teija Kujala, Jaana Halmetoja, Heikki Lyytinen, Paavo Alku, Risto Näätänen: Automatic and controlled processing of acoustic and phonetic contrasts. Hearing Research, Vol. 190, pp. 128-140, 2004.
Catharine Pettigrew, Bruce Murdoch, Curtis Ponton, Simon Finnigan, Paavo Alku, Joseph Kei, Ravi Sockalingam, Helen Chenery: Automatic auditory processing of English words as indexed by the mismatch negativity (MMN), using a multiple deviant paradigm. Ear and Hearing, Vol. 25, Issue 3, pp. 284-301, 2004.
Anna-Mari Mäkelä, Paavo Alku, Ville Mäkinen, Hannu Tiitinen: Glides in speech fundamental frequency are reflected in the auditory N1m response. NeuroReport, Vol. 15, No. 7, pp. 1205-1208, 2004.
Titta Ilvonen, Teija Kujala, Hesham Kozou, Anita Kiesiläinen, Oili Salonen, Paavo Alku, Risto Näätänen: The processing of speech and non-speech sounds in aphasic patients as reflected by the mismatch negativity. Neuroscience Letters, Vol. 366, Issue 3, pp. 235-240, 2004.
Juha Vintturi, Paavo Alku, Eeva Sala, Marketta SIhvo, Erkki Vilkman: Loading-related subjective symptoms during a vocal loading test with special reference to gender and some ergonomic factors. Folia Phoniatrica et Logopaedica, Vol. 55, No. 2, pp. 55-69, 2003.
Elina Pihko, Teija Kujala, Annika Mickos, Henrik Antell, Paavo Alku, Roger Byring, Marit Korkman: Magnetic fields evoked by speech sounds in preschool children. Clinical Neurophysiology, Vol. 116, pp. 112-119, 2005.
Hesham Kozou, Teija Kujala, Yury Shtyrov, Esko Toppila, Jukka Starck, Paavo Alku, Risto Näätänen: The effect of different noise types on the speech and non-speech elicited mismatch negativity. Hearing Research, Vol. 199, Issues 1-2, pp. 31-39, 2005.
Elvira Brattico, Teija Kujala, Mari Tervaniemi, Paavo Alku, Luigi Ambrosi, Vincenzo Monitillo: Long-term exposure to occupational noise alters the cortical organization of sound processing. Clinical Neurophysiology, Vol. 116, pp. 190-203, 2005.
Catharine Pettigrew, Bruce Murdoch, Joseph Kei, Curtis W. Ponton, Paavo Alku, Helen J. Chenery: The Mismatch Negativity (MMN) Response to Complex Tones and Spoken Words in Individuals with Aphasia. Aphasiology, Vol. 19 (No.2), pp. 131-164, 2005.
Teija Kujala, Matias J Palva, Oili Salonen, Paavo Alku, Minna Huotilainen, Antti Järvinen, Risto Näätänen: The role of blind humans’ visual cortex in auditory processing. Neuroscience Letters, Vol. 379, pp. 127-131, 2005.
Anna-Mari Mäkelä, Paavo Alku, Patrick May, Ville Mäkinen, Hannu Tiitinen: Left-hemispheric brain activity reflects formant transitions in speech sounds. NeuroReport, Vol. 16, No. 6, pp. 549-553, 2005.
Kalle J Palomäki, Hannu Tiitinen, Ville Mäkinen, Patrick May, Paavo Alku: Spatial processing in human auditory cortex: The effects of 3D, ITD and ILD stimulation techniques. Cognitive Brain Research, Vol. 24, Issue 3, pp. 364-379, Aug. 2005
Rita Ceponiene, Paavo Alku, Marissa Westerfield, Manijeh Torki and Jeanne Townsend: ERPs differentiate syllable and non-phonetic correlate processing in children and adults. Psychophysiology, Vol. 42, Issue 4, pp. 391-406, July 2005.
Paavo Alku, Matti Airas, Tom Bäckström, Hannu Pulakka: Using group delay function to assess glottal flows estimated by inverse filtering. Electronics Letters, Vol. 41, No. 9, pp. 562-563, 2005.
Hannu Tiitinen, Kalle Palomäki, Ville Mäkinen, Patrick May, Paavo Alku: Behavioral detection of spatial stimuli is reflected in auditory cortical dynamics. Journal of Neurology and Clinical Neurophysiology. Online publication. 2004:50, pp. 1-5, November 30, 2004.
Anna-Mari Mäkelä, Paavo Alku, Patrick May, Ville Mäkinen, Hannu Tiitinen: The auditory N100m response reflects changes in speech fundamental frequency. Journal of Neurology and Clinical Neurophysiology. Online publication. 2004:49, pp. 1-4, November 30, 2004.
Anna-Mari Mäkelä, Paavo Alku, Patrick May, Ville Mäkinen, Hannu Tiitinen: Cortical activity elicited by isolated vowels and diphthongs. Journal of Neurology and Clinical Neurophysiology. Online publication. 2004:91, pp. 1-4, November 30, 2004.
Hannu Tiitinen, Anna-Mari Mäkelä, Ville Mäkinen, Patrick May, Paavo Alku: Periodic glottal excitation and formant frequencies in the perception of vowels. Journal of Neurology and Clinical Neurophysiology. Online publication. 2004:103, pp. 1-4, November 30, 2004.
Laura Lehto, Paavo Alku, Tom Bäckström, Erkki Vilkman: Voice symptoms of call-centre customer service advisers experienced during a work-day and effects of a short vocal training course. Logopedics Phoniatrics Vocology, Vol. 30, No. 1, pp. 14-27, 2005.
Paavo Alku, Brad Story, Matti Airas: Estimation of the voice source from speech pressure signals: Evaluation of an inverse filtering technique using physical modelling of voice production. Folia Phoniatrica et Logopaedica, Vol. 58, No. 2, pp. 102-113, 2006.
Eva Björkner, Johan Sundberg, Paavo Alku: Subglottal pressure and normalized amplitude quotient variation in classically trained baritone singers. Logopedics Phoniatrics Vocology, Vol. 31, No. 4, pp. 157-165, 2006.
Matti Airas, Paavo Alku: Emotions in vowel segments of continuous speech: Analysis of the glottal flow using the normalized amplitude quotient. Phonetica, Vol. 63, No. 1, pp. 26-46, 2006.
Juhani Toivanen, Teija Waaramaa, Paavo Alku, Anne-Maria Laukkanen, Tapio Seppänen, Eero Väyrynen, Matti Airas: Emotions in [a:]: A perceptual and acoustic study. Logopedics Phoniatrics Vocology, Vol. 31, No. 1, pp. 43-48, 2006.
Sari Ylinen, Anna Shestakova, Paavo Alku, Minna Huotilainen: The perception of phonological quantity based on durational cues by native speakers, second-language users and nonspeakers of Finnish. Language and Speech, Vol. 48, No. 3, pp. 313-338, 2005.
Hannu Tiitinen, Anna-Mari Mäkelä, Ville Mäkinen, Patrick J. C. May, Paavo Alku: Disentangling the effects of phonation and articulation: Hemispheric asymmetries in the auditory N1m response of the human brain. BMC Neuroscience, Vol. 6, Article no. 62, 2005.
Laura Lehto, Matti Airas, Eva Björkner, Johan Sundberg, Paavo Alku: Comparison of two inverse filtering methods in parameterization of the glottal closing phase characteristics in different phonation types. Journal Voice, Vol. 21, No. 2, pp. 138-150, 2007.
Tuulia Lepistö, Teija Kujala, Raija Vanhala, Paavo Alku, Minna Huotilainen, Risto Näätänen: The discrimination of and orienting to speech and non-speech sounds in children with autism. Brain Research, Brain Research, Vol. 1066, pp. 147-157, 2005.
Teija Waaramaa, Paavo Alku, Anne-Maria Laukkanen: The role of F3 in the vocal expression of emotions. Logopedics Phoniatrics Vocology, Vol 31, No. 4, pp. 153-156, 2006.
Hannu Tiitinen, Nelli Salminen, Kalle Palomäki, Ville Mäkinen, Paavo Alku, Patrick May: Neuromagnetic recordings reveal temporal dynamics of auditory spatial processing on the human cortex. Neuroscience Letters, Neuroscience Letters, Vol. 396, Issue 1, pp. 17-22, 2006.
Sari Ylinen, Anna Shestakova, Minna Huotilainen, Paavo Alku, Risto Näätänen: Mismatch negativity (MMN) elicited by changes in phoneme length: A cross-linguistic study. Brain Research, Vol. 1072, Issue 1, pp. 175-185, 2006.
Laura Lehto, Laura Laaksonen, Erkki Vilkman, Paavo Alku: Occupational voice complaints and objective acoustic measurements - Do they correlate? Logopedics Phoniatrics Vocology, Vol. 31, No. 4, pp. 147-152, 2006.
Paavo Alku, Jaromir Horacek, Matti Airas, Francois Griffond-Boitier, Anne-Maria Laukkanen: Performance of glottal inverse filtering as tested by aeroelastic modelling of phonation and FE modelling of vocal tract. Acta Acustica united with Acustica, Vol. 92, pp. 717-724, 2006.
Paavo Alku, Matti Airas, Eva Björkner, Johan Sundberg: An amplitude quotient based method to analyze changes in the shape of the glottal pulse in the regulation of vocal intensity. Journal of the Acoustical Society of America, Vol. 120, Issue 2, pp. 1052-1062, 2006.
Elina Pihko, Annika Mickos, Teija Kujala, Annika Pihlgren, Martin Westman, Paavo Alku, Roger Byring, Marit Korkman: Group intervention changes brain activity in bilingual language-impaired children. Cerebral Cortex, Vol. 17, No. 4, pp. 849-858, 2007.
Tom Bäckström, Carlo Magi, Paavo Alku: Minimum separation of line spectral frequencies, IEEE Signal Processing Letters, IEEE Signal Processing Letters, Vol. 14, No. 2, pp. 145-147, 2007.
Tuulia Lepistö, Suvi Silokallio, Taina Nieminen-von Wendt, Paavo Alku, Risto Näätänen, Teija Kujala: Auditory perception and attention as reflected by the brain event-related potentials in children with Asperger syndrome, Clinical Neurophysiology, Vol. 117, No. 10, pp. 2161-2171, 2006.
Juho Kontio, Laura Laaksonen, Paavo Alku: Neural network based artificial bandwidth expansion of speech. IEEE Transactions on Audio, Speech and Language Processing, Vol. 15, No. 3, pp. 873-881, 2007.
Teija Kujala, Jaana Halmetoja, Risto Näätänen, Paavo Alku, Heikki Lyytinen, Elyse Sussman: Speech- and sound-segmentation in dyslexia: evidence for a multiple-level cortical impairment. European Journal of Neuroscience, Vol. 24, pp. 2420-2427, 2006.
Laura Lehto, Laura Laaksonen, Erkki Vilkman, Paavo Alku: Changes in objective acoustic measurements and subjective voice complaints in call-center customer-service advisors during one working day. Journal of Voice, Vol. 22, Issue 2, pp. 164-177, 2008.
Lassi Liikkanen, Hannu Tiitinen, Paavo Alku, Sakari Leino, Santeri Yrttiaho, Patrick J May: The right-hemispheric auditory cortex in humans is sensitive to degraded speech sounds. NeuroReport, Vol. 18, No. 6, pp: 601-605, 2007.
Anne-Maria Laukkanen, Hannu Pulakka, Paavo Alku, Erkki Vilkman, Stellan Hertegård, Per-Åke Lindestad, Hans Larsson, Svante Granqvist: High-speed registration of phonation-related glottal area variation during artificial lengthening of the vocal tract. Logopedics Phoniatrics Vocology, Vol. 32, No. 4, pp. 157-164, 2007.
Sakari Leino, Patrick J. C. May, Paavo Alku, Lassi A. Liikkanen, Hannu Tiitinen: The contribution of high frequencies to human brain activity underlying horizontal localization of natural spatial sounds. BMC Neuroscience 2007, 8:78.
Anke Sambeth, Katja Ruohio, Paavo Alku, Vineta Fellman, Minna Huotilainen: Sleeping newborns extract prosody from continuous speech. Clinical Neurophysiology, Vol. 119, No. 2, pp. 332-341, 2008.
Tuulia Lepistö, Marika Kajander, Raija Vanhala, Paavo Alku, Minna Huotilainen, Risto Näätänen, Teija Kujala: The perception of invariant speech features in children with autism. Biological Psychology, Vol. 77, No. 1, pp. 25-31, 2008.
Elina Pihko, Teija Kujala, Annika Mickos, Paavo Alku, Roger Byring, Marit Korkman: Language impairment is reflected in auditory evoked fields. International Journal of Psychophysiology, Vol. 68, pp. 161-169, 2008.
Carlo Magi, Tom Bäckström, Paavo Alku: Simple proofs of root locations of two symmetric linear prediction models. Signal Processing, Vol. 88, Issue 7, pp. 1894-1897, 2008.
Teija Waaramaa, Anne-Maria Laukkanen, Paavo Alku, Eero Väyrynen: Mono-pitched expression of emotions in different vowels. Folia Phoniatrica et Logopaedica, Vol. 60, pp. 249-255, 2008.
Santeri Yrttiaho, Hannu Tiitinen, Patrick May, Sakari Leino, Paavo Alku: Cortical sensitivity to periodicity of speech sounds. Journal of the Acoustical Society of America, Vol. 123, No. 4, pp. 2191-2199, 2008.
Rita Ceponiene, Manijeh Torki, Paavo Alku, Alain Koyama, Jeanne Townsend: Event-related potentials reflect spectral differences in speech and non-speech stimuli in children and adults. Clinical Neurophysiology, Vol. 119, Issue 7, pp. 1560-1577, 2008.
Rika Takegata Mari Tervaniemi, Paavo Alku, Sari Ylinen, Risto Näätänen: Parameter-specific modulation of the mismatch negativity to duration decrement and increment: Evidence for asymmetric processes. Clinical Neurophysiology, Vol. 119, No. 7, pp. 1515-23, 2008.
Hannu Pulakka, Laura Laaksonen, Martti Vainio, Jouni Pohjalainen, Paavo Alku: Evaluation of an artificial speech bandwidth extension method in three languages. IEEE Transactions on Audio, Speech, and Language Processing, Vol. 16, Issue 6, pp. 1124 – 1137, 2008.
Margriet Groen, Paavo Alku, Dorothy Bishop: Lateralisation of auditory processing in Down syndrome: a study of T-complex peaks Ta and Tb. Biological Psychology, Vol. 79, Issue 2, pp. 148-157, 2008.
Teija Waaramaa, Anne-Maria Laukkanen, Matti Airas, Paavo Alku: Perception of emotional valences from vowel segments of continuous speech. Journal of Voice, Vol. 24, No. 1, pp. 30-38, 2010.
Tuomas Teinonen, Richard N Aslin, Paavo Alku, Gergely Csibra: Visual speech contributes to phonetic learning in 6-month-old infants. Cognition, Vol. 108, pp. 850-855, 2008.
Carlo Magi, Jouni Pohjalainen, Tom Bäckström, Paavo Alku: Stabilised weighted linear prediction. Speech Communication, Vol. 51, pp. 401-411, 2009.
Paavo Alku, Carlo Magi, Santeri Yrttiaho, Tom Bäckström, Brad Story: Closed phase covariance analysis based on constrained linear prediction for glottal inverse filtering. Journal of the Acoustical Society of America, Vol. 125, No. 5, pp. 3289-3305, 2009.
Santeri Yrttiaho, Paavo Alku, Patrick May, Hannu Tiitinen: Representation of the vocal roughness of aperiodic speech sounds in the auditory cortex. Journal of the Acoustical Society of America, Vol. 125, No. 5, pp. 3177-3185, 2009.
Tuomas Teinonen, Vineta Fellman, Risto Näätänen, Paavo Alku, Minna Huotilainen: Statistical language learning in neonates revealed by event-related brain potentials. BMC Neuroscience, 10:21, 2009.
Ahmed Geneid, Marjo Rönkkö, Liisa Airaksinen, Risto Voutilainen, Elina Toskala, Paavo Alku, Erkki Vilkman: Pilot study on acute voice and throat symptoms related to exposure to organic dust: Preliminary findings from a provocation test. Logopedics, Phoniatrics, Vocology, Vol. 34, Issue 2, pp. 67-72, 2009.
Riikka Lovio, Satu Pakarinen, Minna Huotilainen, Paavo Alku, Salla Silvennoinen, Risto Näätänen, Teija Kujala: Auditory discrimination profiles of speech sound changes in 6-year-old children as determined with the multi-feature MMN paradigm. Clinical Neurophysiology, Vol. 120, Issue 5, pp. 916-921, 2009.
Paavo Alku, Carlo Magi, Tom Bäckström: Glottal inverse filtering with the closed-phase covariance analysis utilizing mathematical constraints in modelling of the vocal tract. Logopedics, Phoniatrics, Vocology (Special Issue for the Jan Gauffin Memorial Symposium), Vol. 34, No. 4, pp. 200-209, 2009.
Laura Laaksonen, Hannu Pulakka, Ville Myllylä, Paavo Alku: Development, evaluation and implementation of an artificial bandwidth extension method of telephone speech in mobile terminal. IEEE Transactions on Consumer Electronics, Vol. 55, No. 2, pp. 780-787, 2009.
Riia Milovanova, Minna Huotilainen, Paulo Esquef, Paavo Alku, Vesa Välimäki, Mari Tervaniemi: The role of musical aptitude and language skills in preattentive duration processing in school-aged children. Neuroscience Letters, Vol. 460, Issue 2, pp. 161-165, 2009.
Satu Pakarinen, Riikka Lovio, Minna Huotilainen, Paavo Alku, Risto Näätänen, Teija Kujala: Fast multi-feature paradigm for recording several mismatch negativities (MMNs) to phonetic and acoustic changes in speech sounds. Biological Psychology, Vol. 82, Issue 3, pp. 219-226, 2009.
Nelli Salminen, Hannu Tiitinen, Ismo Miettinen, Paavo Alku, Patrick May: Asymmetrical representation of auditory space in human cortex. Brain Research, Vol. 1306, pp. 93-99, 2010.
Nelli H. Salminen, Patrick J.C. May, Paavo Alku, Hannu Tiitinen: A population rate code of auditory space in the human cortex. PLoS One 4(10), 2010.
Tanja Rinker, Paavo Alku, Sibylle Brosch, Markus Kiefer: Discrimination of native and non-native vowel contrasts in bilingual Turkish–German and monolingual German children: Insight from the Mismatch Negativity ERP component. Brain and Language, Vol. 113, Issue 2, pp. 90-95, 2010.
Tuomo Raitio, Antti Suni, Junichi Yamagishi, Hannu Pulakka, Jani Nurminen, Martti Vainio, Paavo Alku: HMM-based speech synthesis utilizing glottal inverse filtering. IEEE Transactions on Audio, Speech, and Language Processing, Vol. 19, No. 1, pp. 153-165, 2011.
Alexander Sorokin, Paavo Alku, Teija Kujala: Change and novelty detection in speech and non-speech sound streams. Brain Research, Vol. 1327, pp. 77-90, 2010.
Ismo Miettinen, Hannu Tiitinen, Paavo Alku, Patrick May: Sensitivity of the human auditory cortex to acoustic degradation of speech and non-speech sounds. BMC Neuroscience 2010, 11:24.
Laura E. Matilainen, Sanna S. Talvitie, Eero Pekkonen, Paavo Alku, Patrick J.C. May, Hannu Tiitinen: The effects of healthy aging on auditory processing in humans as indexed by transient brain responses. Clinical Neurophysiology, Vol. 121, pp. 902-911, 2010.
Sanna S. Talvitie, Laura E. Matilainen, Eero Pekkonen, Paavo Alku, Patrick J.C. May, Hannu Tiitinen: The effects of cortical ischemic stroke on auditory processing in humans as indexed by transient brain responses. Clinical Neurophysiology, Vol. 121, pp. 912-920, 2010.
Santeri Yrttiaho, Hannu Tiitinen, Paavo Alku, Ismo Miettinen, Patrick May: Temporal integration of vowel periodicity in the auditory cortex. Journal of the Acoustical Society of America, Vol. 128, No. 1, pp. 224-234, 2010.
Rahim Saeidi, Jouni Pohjalainen, Tomi Kinnunen, Paavo Alku: Temporally weighted linear prediction features for tackling additive noise in speaker verification. IEEE Signal Processing Letters, Vol. 17, No. 6, pp. 599-602, 2010.
Eira Jansson-Verkasalo, Timo Ruusuvirta, Minna Huotilainen, Paavo Alku, Elena Kushnerenko, Kalervo Suominen, Seppo Rytky, Mirja Luotonen, Tuula Kaukola, Uolevi Tolonen, Mikko Hallman: Atypical perceptual narrowing in prematurely born infants is associated with compromised language acquisition at 2 years of age. BMC Neuroscience, 2010, 11:88.
Ismo Miettinen, Paavo Alku, Nelli Salminen, Patrick J May, Hannu Tiitinen: Responsiveness of the human auditory cortex to degraded speech sounds: reduction of amplitude resolution vs. additive noise. Brain Research, Vol. 1367, pp. 298-309, 2011.
Paavo Alku, Tom Bäckström, Carlo Magi: Generalization of linear prediction with the autocorrelation method. Electronics Letters. Vol. 47, Issue 2, pp. 145-147, 2011.
Santeri Yrttiaho, Patrick J. C. May, Hannu Tiitinen, Paavo Alku: Cortical encoding of aperiodic and periodic speech sounds: evidence for distinct neural populations. NeuroImage. Vol. 55, Issue 3, pp. 1252-1259, 2011.
Hannu Pulakka, Paavo Alku: Bandwidth extension of telephone speech using a neural network and a filterbank implementation for highband mel spectrum. IEEE Transactions on Audio, Speech, and Language Processing. Vol. 19, No. 7, pp. 2170-2183, 2011.
Paavo Alku: Glottal inverse filtering analysis of human voice production – A review of estimation and parameterization methods of the glottal excitation and their applications. (Invited article). Sadhana – Academy Proceedings in Engineering Sciences. Vol. 36, Part 5, pp. 623-650, 2011.
Ahmed Geneid, Marjo Rönkkö, Risto Voutilainen, Liisa Airaksinen, Elina Toskala, Paavo Alku, Erkki Vilkman: Detecting inaudible vocal organ changes through glottal inverse filtering. Journal of Voice. Vol. 26, Issue 2, pp. 154-163, 2012.
Cemal Hanilci, Tomi Kinnunen, Figen Ertas, Rahim Saeidi, Jouni Pohjalainen, Paavo Alku: Regularized all-pole models for speaker verification under noisy environments. IEEE Signal Processing Letters. Vol. 19, Issue 3, pp. 163-166, 2012.
Ismo Miettinen, Paavo Alku, Santeri Yrttiaho, Patrick May, Hannu Tiitinen: Cortical processing of degraded speech sounds: Effects of distortion type and continuity. NeuroImage. Vol. 60, Issue 2, pp. 1036-1045, 2012.
Hannu Pulakka, Laura Laaksonen, Ville Myllylä, Santeri Yrttiaho, Paavo Alku: Conversational evaluation of speech bandwidth extension using a mobile handset. IEEE Signal Processing Letters. Vol. 19, Issue 4, pp. 203-206, 2012.
Hannu Pulakka, Ulpu Remes, Santeri Yrttiaho, Kalle Palomäki, Mikko Kurimo, Paavo Alku: Bandwidth extension of telephone speech to low frequencies using sinusoidal synthesis and Gaussian mixture model. IEEE Transactions on Audio, Speech, and Language Processing, Vol. 20, No. 8, pp. 2219-2231, 2012.
Hannu Pulakka, Laura Laaksonen, Santeri Yrttiaho, Ville Myllylä, Paavo Alku: Conversational quality evaluation of artificial bandwidth extension of telephone speech. Journal of the Acoustical Society of America, Vol. 132, No. 2, pp. 848-861, 2012.
Jarmo A. Hämäläinen, Tomi K. Guttorm, Ulla Richardson, Paavo Alku, Heikki Lyytinen, Paavo H.T. Leppänen: Auditory event-related potentials measured in kindergarten predict later reading problems at school age. Developmental Neuropsychology. Vol. 38, No. 8, pp. 550-566, 2013.
Emma Jokinen, Santeri Yrttiaho, Hannu Pulakka, Martti Vainio, Paavo Alku: Signal-to-noise ratio adaptive post-filtering method for intelligibility enhancement of telephone speech. Journal of the Acoustical Society of America, Vol. 132, No. 6, pp. 3990-4001, 2012.
Hannu Tiitinen, Ismo Miettinen, Paavo Alku, Patrick J.C. May: Transient and sustained cortical activity elicited by connected speech of varying intelligibility. BMC Neuroscience 2012, 13:157.
Jouni Pohjalainen, Tuomo Raitio, Santeri Yrttiaho, Paavo Alku: Detection of shouted speech in noise: human and machine. Journal of the Acoustical Society of America, Vol. 133, No. 4, pp. 2377-2389, 2013.
Elina Niemitalo-Haapola, Sini Lapinlampi, Teija Kujala, Paavo Alku, Tiia Kujala, Kalervo Suominen, and Eira Jansson-Verkasalo: Linguistic multi-feature paradigm as an eligible measure of central auditory processing and novelty detection in 2-year-old children. Cognitive Neuroscience, Vol. 4, Issue 2, pp. 99-106, 2013.
Tuomo Raitio, Antti Suni, Martti Vainio, Paavo Alku: Synthesis and perception of breathy, normal, and Lombard speech in the presence of noise. Computer Speech and Language, Vol. 28, No. 2, pp. 648-664, 2014.
Emma Jokinen, Marko Takanen, Martti Vainio, Paavo Alku: An adaptive post-filtering method producing an artificial Lombard-like effect for intelligibility enhancement of narrowband telephone speech. Computer Speech and Language, Vol. 28, No. 2, pp. 619-628, 2014.
Paavo Alku, Jouni Pohjalainen, Martti Vainio, Anne-Maria Laukkanen, Brad Story: Formant frequency estimation of high-pitched vowels using weighted linear prediction. Journal of the Acoustical Society of America, Vol. 134, No. 2, pp. 1295-1313, 2013.
Harri Auvinen, Tuomo Raitio, Manu Airaksinen, Samuli Siltanen, Brad Story, Paavo Alku: Automatic glottal inverse filtering with the Markov chain Monte Carlo method. Computer Speech and Language, Vol. 28, Issue 5, pp. 1139-1155, 2014.
Marko Takanen, Tuomo Raitio, Olli Santala, Paavo Alku, Ville Pulkki: Fusion of spatially separated vowel formant cues. Journal of the Acoustical Society of America, Vol. 134, No. 6, pp. 4508-4517, 2013.
Manu Airaksinen, Tuomo Raitio, Brad Story, Paavo Alku: Quasi closed phase glottal inverse filtering analysis with weighted linear prediction. IEEE Transactions on Audio, Speech, and Language Processing, Vol. 22, No. 3, pp. 596-607, 2014.
Tanja Rinker, Katrin Hartmann, Elisabeth Smith, Rudolf Reiter, Paavo Alku, Markus Kiefer, Sibylle Brosch: Children with Specific Language Impairment (SLI): Electrophysiological and pedaudiological findings (In German). Laryngo-Rhino-Otologie, Vol. 93, Issue 8, pp. 521-527, 2014.
Ricardo Sousa, Anibal Ferreira, Paavo Alku: The harmonic and noise information of the glottal pulses in speech. Biomedical Signal Processing and Control, Biomedical Signal Processing and Control, Vol. 10, pp. 137-143, 2014.
Thomas Drugman, Paavo Alku, Abeer Alwan, Bayya Yegnanarayana: Glottal source processing: from analysis to applications. Computer Speech and Language, Vol. 28, Issue 5, pp. 1117-1138, 2014.
Mirko Grimaldi, Bianca Sisinni, Barbara Gili Fivela, Sara Invitto, Donatella Resta, Paavo Alku, Elvira Brattico: Assimilation of L2 vowels to L1 phonemes governs L2 learning in adulthood: A behavioral and ERP study. Frontiers in Human Neuroscience, 8:279, 2014.
Laura Taimi, Katri Jähi, Paavo Alku, Maija S. Peltola: Children learning a non-native vowel – The effect of a two-day production training. Journal of Language Teaching and Research, Vol. 5, No. 6, pp. 1229-1235, 2014.
Laura Taimi, Paavo Alku, Teija Kujala, Risto Näätänen, Maija S. Peltola: The effect of production training to non-native speech sound perception and discrimination in school-aged children: An MMN and behavioural study. Linguistica Lettica, Vol. 22, pp. 114-129, 2014.
Jouni Pohjalainen, Cemal Hanilci, Tomi Kinnunen, Paavo Alku: Mixture linear prediction in speaker veriﬁcation under vocal effort mismatch. IEEE Signal Processing Letters, Vol. 21, No. 12, pp. 1516-1520, 2014.
Nelli Salminen, Marko Takanen, Olli Santala, Paavo Alku, Ville Pulkki: Neural realignment of spatially separated sound components. Journal of the Acoustical Society of America, Vol. 137, No. 6, pp. 3356-3365, 2015.
Ulpu Remes, Ana Ramírez López, Lauri Juvela, Kalle Palomäki, Guy J. Brown, Paavo Alku, Mikko Kurimo: Comparing human and automatic speech recognition in a perceptual restoration experiment. Computer Speech and Language, Vol. 35, pp. 14–31, 2016.
Maria Hakonen, Patrick May, Jussi Alho, Paavo Alku, Emma Jokinen, Iiro Jääskeläinen, Hannu Tiitinen: Previous exposure to intact speech increases intelligibility of its digitally degraded counterpart as a function of stimulus complexity. NeuroImage, Vol. 125, pp. 131-143, 2016.
Rahim Saeidi, Paavo Alku, Tom Bäckström: Feature extraction using power-law adjusted linear prediction with application to speaker recognition under severe vocal effort mismatch. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 24, Issue 1, pp. 42-53, 2016.
Soila Kuuluvainen, Paavo Alku, Tommi Makkonen, Jari Lipsanen, Teija Kujala: Cortical speech and nonspeech discrimination in relation to cognitive measures in preschool children. European Journal of Neuroscience, Vol. 43, Issue 6, pp. 738-750, 2016.
Tuomo Raitio, Lauri Juvela, Antti Suni, Martti Vainio, Paavo Alku: Phase perception of the glottal excitation and its relevance in statistical parametric speech synthesis. Speech Communication, Vol. 81, pp. 104-119, 2016.
Emma Jokinen, Hannu Pulakka, Paavo Alku: Phase modification for increasing the intelligibility of telephone speech in near-end noise conditions - evaluation of two methods. Speech Communication, Vol. 83, pp. 64-80, 2016.
Kimmo U. Peltola, Tomi Rautaoja, Paavo Alku, Maija S. Peltola: Adult learners and a one-day production training – Small changes but the native language sound system prevails. Journal of Language Teaching and Research, Vol. 8, No. 1, pp. 1-7, 2017.
Manu Airaksinen, Tom Bäckström, Paavo Alku: Quadratic programming approach to glottal inverse filtering by joint norm-1 and norm-2 optimization. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 25, Issue 4, pp. 929-939, 2017.
Ahmed Abo-Hasseba, Teija Waaramaa, Paavo Alku, Ahmed Geneid: Difference in voice problems and noise reports between teachers of public and private schools in Upper Egypt. Journal of Voice, Vol. 31, No. 4, pp. 508.e11-508.e16, 2017.
Manu Airaksinen, Bajibabu Bollepalli, Jouni Pohjalainen, Paavo Alku: Glottal vocoding with frequency-warped time-weighted linear prediction. IEEE Signal Processing Letters, Vol. 24, Issue 4, pp. 446-450, 2017.
Emma Jokinen, Paavo Alku: Estimating the spectral tilt of the glottal source from telephone speech using a deep neural network. Journal of the Acoustical Society of America, Vol. 141, No. 4, pp. EL327-EL330, 2017.
Dong Liu, Elina Kankare, Anne-Maria Laukkanen, Paavo Alku: Comparison of parametrization methods of electroglottographic and inverse filtered acoustic speech pressure signals in distinguishing between phonation types. Biomedical Signal Processing and Control, Vol. 36, pp. 183-193, 2017.
Ismael Bleyer, Lasse Lybeck, Harri Auvinen, Manu Airaksinen, Paavo Alku, Samuli Siltanen: Alternating minimisation for glottal inverse filtering. Inverse Problems, Vol. 33, No. 6, 19 pages, 2017.
Paavo Alku, Rahim Saeidi: The linear predictive modeling of speech from higher-lag autocorrelation coefficients applied to noise-robust speaker recognition. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 25, Issue 8, pp. 1606-1617, 2017.
Emma Jokinen, Ulpu Remes, Paavo Alku: Intelligibility enhancement of telephone speech using Gaussian process regression for normal-to-Lombard spectral tilt conversion. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 25, No. 10, pp. 1985-1996, 2017.
Dhananjaya Gowda, Manu Airaksinen, Paavo Alku: Quasi-closed phase forward-backward linear prediction analysis of speech for accurate formant detection and estimation. Journal of the Acoustical Society of America, Vol. 142, No. 3, pp. 1542-1553, 2017.
Kimmo Peltola, Paavo Alku, Maija Peltola: Non-native speech sound production changes even with passive listening training. Linguistica Lettica, Vol. 25, pp. 158-172, 2017.
Antti Saloranta, Paavo Alku, Maija Peltola: Learning and generalization of vowel duration with production training: behavioral results. Linguistica Lettica, Vol. 25, pp. 67-87, 2017.
Tiina Murtola, Paavo Alku, Jarmo Malinen, Ahmed Geneid: Parameterization of a computational physical model for glottal flow using inverse filtering and high-speed videoendoscopy. Speech Communication, Vol. 96, pp. 67-80, 2018.
Ville Vestman, Dhananjaya Gowda, Md Sahidullah, Paavo Alku, Tomi Kinnunen: Speaker recognition from whispered speech: A tutorial survey and an application of time-varying linear prediction. Speech Communication, Vol. 99, pp. 62-79, 2018.
Manu Airaksinen, Lauri Juvela, Bajibabu Bollepalli, Junichi Yamagishi, Paavo Alku: A comparison between STRAIGHT, glottal, and sinusoidal vocoding in statistical parametric speech synthesis. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 26, No. 9, pp. 1658-1670, 2018.
Sofoklis Kakouros, Okko Räsänen, Paavo Alku: Comparison of spectral tilt measures for sentence prominence in speech – effects of dimensionality and adverse noise conditions. Speech Communication, Vol. 103, pp. 11-26, 2018.
Parham Mokhtari, Brad Story, Paavo Alku, Hiroshi Ando: Estimation of the glottal flow from speech pressure signals: Evaluation of three variants of iterative adaptive inverse filtering using computational physical modelling of voice production. Speech Communication, Vol. 104, pp. 24-38, 2018.
Emma Jokinen, Rahim Saeidi, Tomi Kinnunen, Paavo Alku: Vocal effort compensation for MFCC feature extraction in a shouted versus normal speaker recognition task. Computer Speech and Language, Vol. 53, pp. 1-11, 2019.
Nonavinakere Prabhakera Narendra, Manu Airaksinen, Brad Story, Paavo Alku: Estimation of the glottal source from coded telephone speech using deep neural networks. Speech Communication, Vol. 106, pp. 95-104, 2019.
Shreyas Seshadri, Lauri Juvela, Okko Räsänen, Paavo Alku: Vocal effort based speaking style conversion using vocoder features and parallel learning. IEEE Access, Vol. 7, pp. 17230-17246, 2019.
Paavo Alku, Tiina Murtola, Jarmo Malinen, Juha Kuortti, Brad Story, Manu Airaksinen, Mika Salmi, Erkki Vilkman, Ahmed Geneid: OPENGLOT - An open environment for the evaluation of glottal inverse filtering. Speech Communication, Vol. 107, pp. 38-47, 2019.
Lauri Juvela, Bajibabu Bollepalli, Vassillis Tsiaras, Paavo Alku: GlotNet—A raw waveform model for the glottal excitation in statistical parametric speech synthesis. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 27, No. 6, pp. 1019-1030, 2019.
Tiina Murtola, Jarmo Malinen, Ahmed Geneid, Paavo Alku: Analysis of phonation onsets in vowel production, using information from glottal area and flow estimate. Speech Communication, Vol. 109, pp. 55-65, 2019.
Nonavinakere Prabhakera Narendra, Paavo Alku: Dysarthric speech classification from coded telephone speech using glottal features. Speech Communication, Vol. 110, pp. 47-55, 2019.
Bajibabu Bollepalli, Lauri Juvela, Manu Airaksinen, Cassia Valentini-Botinhao, Paavo Alku: Normal-to-Lombard adaptation of speech synthesis using long short-term memory recurrent neural networks. Speech Communication, Vol. 110, pp. 64-75, 2019.
Paavo Alku, Tiina Murtola, Jarmo Malinen, Ahmed Geneid, Erkki Vilkman: Skewing of the glottal flow with respect to the glottal area measured in natural production of vowels. Journal of the Acoustical Society of America, Vol. 146, No. 4, pp. 2501-2509, 2019.
Sudarsana Reddy Kadiri, Paavo Alku: Mel-frequency cepstral coefficients derived using the zero-time windowing spectrum for classification of phonation types in singing. Journal of the Acoustical Society of America Express Letters, Vol. 146, No. 5, pp. 418-423, 2019.
Kimmo U. Peltola, Henna Tamminen, Paavo Alku, Teija Kujala, Maija S. Peltola: Motoric training alters speech sound perception and production – active listening training does not lead into learning outcomes. Journal of Language Teaching and Research, Vol. 11, No. 1, pp. 10-16, 2020.
Antti Saloranta, Paavo Alku, Maija S. Peltola: Listen-and-repeat training improves perception of second language vowel duration: Evidence from mismatch negativity (MMN) and N1 responses and behavioral discrimination. International Journal of Psychophysiology, Vol. 147, pp. 72-82, 2020.
Sudarsana Reddy Kadiri, Paavo Alku: Analysis and detection of pathological voice using glottal source features. IEEE Journal of Selected Topics in Signal Processing, Vol. 14, Issue 2, pp. 367-379, 2020.
Mittapalle Kiran Reddy, Paavo Alku, Sreenivasa Rao: Detection of specific language impairment in children using glottal source features. IEEE Access, Vol. 8, Issue 1, pp. 15273-15279, 2020.
Marcelo Saldías, Anne-Maria Laukkanen, Marco Guzman, Gonzalo Miranda, Justin Stoney, Paavo Alku, Johan Sundberg: The vocal tract in loud twang-like singing while producing high and low pitches. Journal of Voice, Vol. 35, No. 5, pp. 807.e1−807.e23, 2021.
Sudarsana Reddy Kadiri, P. Gangamohan, Suryakanth V. Gangashetty, Paavo Alku, Bayya Yegnanarayana: Excitation features of speech for emotion recognition using neutral speech as reference. Circuits, Systems, and Signal Processing, Vol. 39, pp. 4459-4481, 2020.
Sudarsana Reddy Kadiri, Paavo Alku, Bayya Yegnanarayana: Analysis and classification of phonation types in speech and singing voice. Speech Communication, Vol. 118, pp. 33-47, 2020.
Sudarsana Reddy Kadiri, Paavo Alku: Excitation features of speech for speaker-specific emotion detection. IEEE Access, Vol. 8, Issue 1, pp. 60382-60391, 2020.
Nonavinakere Prabhakera Narendra, Paavo Alku: Glottal source information for pathological voice detection. IEEE Access, Vol. 8, Issue 1, pp. 67745-67755, 2020.
Xin Wang, Junichi Yamagishi, Massimiliano Todisco, Hector Delgado, Andreas Nautsch, Nicholas Evans, Md Sahidullah, Ville Vestman, Tomi Kinnunen, Kong Aik Lee, Lauri Juvela, Paavo Alku, Yu-Huai Peng, Hsin-Te Hwang, Yu Tsao, Hsin-Min Wang, Sebastien Le Maguer, Markus Becker, Fergus Henderson, Rob Clark, Yu Zhang, Quan Wang, Ye Jia, Kai Onuma, Koji Mushika, Takashi Kaneda, Yuan Jiang, Li-Juan Liu, Yi-Chiao Wu, Wen-Chin Huang, Tomoki Toda, Kou Tanaka, Hirokazu Kameoka, Ingmar Steiner, Driss Matrouf, Jean-Francois Bonastre, Avashna Govender, Srikanth Ronanki, Jing-Xuan Zhang, Zhen-Hua Ling: ASVspoof 2019: a large-scale public database of synthetic, converted and replayed speech. Computer Speech and Language, Vol. 64, Article 101114, 2020.
Dhananjaya Gowda, Sudarsana Reddy Kadiri, Brad Story, Paavo Alku: Time-varying quasi-closed-phase analysis for accurate formant tracking in speech signals. IEEE/ACM Transactions on Audio, Speech, and Language Processing, Vol. 28, pp. 1901-1914, 2020.
Nonavinakere Prabhakera Narendra, Paavo Alku: Automatic assessment of intelligibility in speakers with dysarthria from coded telephone speech using glottal features. Computer Speech and Language, Vol. 65, Article 101117, 2021.
Nonavinakere Prabhakera Narendra, Paavo Alku: Automatic intelligibility assessment of dysarthric speech using glottal parameters. Speech Communication, Vol. 123, pp. 1-9, 2020.
Tiina Murtola, Paavo Alku: Indicators of anterior-posterior phase difference in glottal opening measured from natural production of vowels. Journal of the Acoustical Society of America Express Letters, Vol. 148, No. 2, pp. 141-146, 2020.
Rashmi Kethireddy, Sudarsana Reddy Kadiri, Paavo Alku, Suryakanth V. Gangashetty: Mel-weighted single frequency filtering spectrogram for dialect identification. IEEE Access, Vol. 8, pp. 174871-174879, 2020.
Krishna Gurugubelli, Anil Kumar Vuppala, Nonavinakere Prabhakera Narendra, Paavo Alku: Duration of the rhotic approximant /r/ in spastic dysarthria of different severity levels. Speech Communication, Vol. 125, pp. 61-68, 2020.
M. Kiran Reddy, Pyry Helkkula, Y. Madhu Keerthana, Kasimir Kaitue, Mikko Minkkinen, Heli Tolppanen, Tuomo Nieminen, Paavo Alku: The automatic detection of heart failure using speech signals. Computer Speech and Language, Vol. 69, Article 101205, 2021.
Sudarsana Reddy Kadiri, Paavo Alku: Glottal features for classification of phonation type from speech and neck surface accelerometer signals. Computer Speech and Language, Vol. 70, Article 101232, 2021.
Nonavinakere Prabhakera Narendra, Björn Schuller, Paavo Alku: The detection of Parkinson’s disease from speech using voice source information. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 29, pp. 1925-1936, 2021.
Katja Immonen, Jemina Kilpeläinen, Paavo Alku, Maija S. Peltola: Does studying in a music-oriented education program affect non-native sound learning? - Effects of passive auditory training on children’s vowel production. Journal of Language Teaching and Research, Vol. 12, No. 5, pp. 678-687, 2021.
Hemant Kumar Kathania, Sudarsana Reddy Kadiri, Paavo Alku, Mikko Kurimo: Using data augmentation and time-scale modification to improve ASR of children’s speech in noisy environments. Applied Sciences, Vol. 11, Article 8420, 2021.
Mittapalle Kiran Reddy, Paavo Alku: A comparison of cepstral features in the detection of pathological voices by varying the input and filterbank of the cepstrum computation. IEEE Access, Vol. 9, pp. 135953-135963, 2021.
Dhananjaya Gowda, Bajibabu Bollepalli, Sudarsana Reddy Kadiri, Paavo Alku: Formant tracking using quasi-closed phase forward-backward linear prediction analysis and deep neural networks. IEEE Access, Vol. 9, pp. 151631-151640, 2021.
Sudarsana Reddy Kadiri, Paavo Alku, Bayya Yegnanarayana: Extraction and utilization of excitation information of speech: A review. Proceedings of the IEEE, Vol. 109, Issue 12, pp. 1920-2941, 2021.
Hemant Kumar Kathania, Sudarsana Reddy Kadiri, Paavo Alku, Mikko Kurimo: A formant modification method for improved ASR of children’s speech. Speech Communication, Vol. 136, pp. 98-106, 2022.
Mittapalle Kiran Reddy, Hilla Pohjalainen, Pyry Helkkula, Kasimir Kaitue, Mikko Minkkinen, Heli Tolppanen, Tuomo Nieminen, Paavo Alku: Glottal flow characteristics in vowels produced by speakers with heart failure. Speech Communication, Vol. 137, pp. 35-43, 2022.
Katja Immonen, Paavo Alku, Maija S. Peltola: Phonetic listen-and-repeat training alters 6–7-year-old children’s non-native vowel contrast production after one training session. Journal of Second Language Pronunciation, Vol. 8, Issue 1, pp. 95-115, 2022.
Katja Immonen, Kimmo U. Peltola, Henna Tamminen, Paavo Alku, Maija S. Peltola: Orthography does not hinder non-native production learning in children. Second Language Research, Vol. 39, Issue 2, pp. 565-577, 2023.
Saska Tirronen, Sudarsana Reddy Kadiri, Paavo Alku. The effect of the MFCC frame length in automatic voice pathology detection. Journal of Voice, Vol. 38, No. 5, pp. 975−982, 2024.
Sudarsana Reddy Kadiri, Paavo Alku: Subjective evaluation of basic emotions from audio-visual data. Sensors 22, no. 13: 4931, 2022.
Mittapalle Kiran Reddy, Yagnavajjula Madhu Keerthana, Paavo Alku: End-to-end pathological speech detection using wavelet scattering network. IEEE Signal Processing Letters, Vol. 29, pp. 1863-1867, 2022.
Sudarsana Reddy Kadiri, Paavo Alku, Bayya Yegnanarayana: Analysis of instantaneous frequency components of speech signals for epoch extraction. Computer Speech and Language, Vol. 78, Article 101443, 2023.
Yuanyuan Liu, Mittapalle Kiran Reddy, Nelly Penttilä, Tiina Ihalainen, Paavo Alku, Okko Räsänen: Automatic assessment of Parkinson’s disease using speech representations of phonation and articulation. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 31, pp. 242-255, 2023.
Madhu Keerthana Yagnavajjula, Paavo Alku, Krothapalli Sreenivasa Rao, Pabitra Mitra: Detection of neurogenic voice disorders using the Fisher vector representation of cepstral features. Journal of Voice, Vol. 39, No. 3, pp. 757−763, 2025.
Saska Tirronen, Sudarsana Reddy Kadiri, Paavo Alku: Hierarchical multi-class classification of voice disorders using self-supervised models and glottal features. IEEE Open Journal of Signal Processing, Vol. 4, pp. 80-88, 2023.
Mittapalle Kiran Reddy, Paavo Alku: Exemplar-based sparse representations for detection of Parkinson’s disease from speech. IEEE/ACM Transactions on Audio, Speech and Language Processing, Vol. 31, pp. 1386-1396, 2023.
Paavo Alku, Sudarsana Reddy Kadiri, Dhananjaya Gowda: Refining a deep learning-based formant tracker using linear prediction methods. Computer Speech and Language, Vol. 81, Article 101515, 2023.
Manila Kodali, Sudarsana Reddy Kadiri, Paavo Alku: Automatic classification of the severity level of Parkinson’s disease: A comparison of speaking tasks, features, and classifiers. Computer Speech and Language, Vol. 83, Article 101548, 2023.
Sudarsana Reddy Kadiri, Farhad Javanmardi, Paavo Alku: Investigation of self-supervised pre-trained models for classification of voice quality from speech and neck surface accelerometer signals. Computer Speech and Language, Vol. 83, Article 101550, 2023.
Farhad Javanmardi, Sudarsana Reddy Kadiri, Paavo Alku: A comparison of data augmentation methods in voice pathology detection. Computer Speech and Language, Vol. 83, Article 101552, 2023.
Mittapalle Kiran Reddy, Yagnavajjula Madhu Keerthana, Paavo Alku: Classification of functional dysphonia using the tunable Q wavelet transform. Speech Communication, Vol. 155, Article 102989, 2023.
Katja Haapanen, Antti Saloranta, Kimmo U. Peltola, Henna Tamminen, Lannie Uwu-khaeb, Paavo Alku, Maija S. Peltola:Listen-and-repeat training of non-native vowel quality. Journal of Monolingual and Bilingual Speech, Vol. 6, No. 1, pp. 79-101, 2024.
Paavo Alku, Manila Kodali, Laura Laaksonen, Sudarsana Reddy Kadiri: AVID: A speech database for machine learning studies on vocal intensity. Speech Communication, Vol. 157, Article 103039, 2024.
Madhu Keerthana Yagnavajjula, Kiran Reddy Mittapalle, Paavo Alku, Sreenivasa Rao, Pabitra Mitra: Automatic classification of neurological voice disorders using wavelet scattering features. Speech Communication, Vol. 157, Article 103040, 2024.
Farhad Javanmardi, Sudarsana Reddy Kadiri, Paavo Alku: Pre-trained models for detection and severity level classification of dysarthria from speech. Speech Communication, Vol. 158, Article 103047, 2024.
Antti Saloranta, Katja Haapanen, Kimmo U. Peltola, Henna Tamminen, Paavo Alku, Lannie Uwu-khaeb, Maija S. Peltola: One-day listen-and-repeat training of a non-native vowel duration contrast for speakers of Namibian languages. Journal of Second Language Pronunciation, Vol. 10, No. 1, pp. 85-109, 2024.
Farhad Javanmardi, Sudarsana Reddy Kadiri, Paavo Alku: Exploring the impact of fine-tuning the Wav2vec2 model in database-independent detection of dysarthric speech. IEEE Journal of Biomedical and Health Informatics, Vol. 28, Issue 8, pp. 4951-4962, 2024.
Mittapalle Kiran Reddy, Paavo Alku: Classification of phonation types in singing voice using wavelet scattering network-based features. JASA Express Letters, Vol. 4, Issue 6, Article 065201, 2024.
Enni Sanmark, Anna Tuhkuri-Matvejeff, Ahmed Geneid, Lotta-Maria Oksanen, Paavo Alku, Jani Hakala, Paavo Heikkilä, Ville Silvonen, Aimo Taipale, Topi Rönkkö, Anne-Maria Laukkanen, Sampo Saari, Ville Vartiainen: Effect of vocalization on human aerosol dynamics: Whispering produces more aerosols than speaking. Journal of Voice, 2024 (In press).
Anne-Maria Laukkanen, Sudarsana Reddy Kadiri, Shrikanth Narayanan, Paavo Alku. Can a machine distinguish high and low amount of social creak in speech? Journal of Voice, 2024 (In press).
Mittapalle Kiran Reddy, Paavo Alku: Tunable Q wavelet transform -based features in the classification of phonation types in the singing and speaking voice. Journal of Voice, 2024 (In press).
Sudarsana Reddy Kadiri, Kevin Huang, Christina Hagedorn, Dani Byrd, Paavo Alku, Shrikanth Narayanan: Formant tracking by combining deep neural network and linear prediction. IEEE Open Journal of Signal Processing, Vol. 6, pp. 222-230, 2025.
Anna Tuhkuri-Matvejeff, Sampo Saari, Lotta Maria Oksanen, Paavo Heikkilä, Ville Silvonen, Jani Hakala, Topi Rönkkö, Aimo Taipale, Enni Sanmark, Anne-Maria Laukkanen, Paavo Alku, Ahmed Geneid, Ville A. Vartiainen: Effects of spoken phones and patient characteristics on respiratory aerosol emission. Journal of Voice, 2025 (In press).
Manila Kodali, Sudarsana Reddy Kadiri, Shrikanth Narayanan, Paavo Alku: The machine learning-based prediction of the sound pressure level from pathological and healthy speech signals. Journal of the Acoustical Society of America, Vol. 157, No. 3, pp. 1726-1741, 2025.
Yuanyuan Liu, Mittapalle Kiran Reddy, Madhu Keerthana Yagnavajjula, Okko Räsänen, Paavo Alku, Tero Ikävalko, Tua Hakanpää, Aleksi Öyry, Anne-Maria Laukkanen: Automatic classification of strain in the singing voice using machine learning. Journal of Voice, 2025 (In press).
Mittapalle Kiran Reddy, Paavo Alku: Automatic detection of parkinsonian speech using wavelet scattering features. JASA Express Letters, Vol. 5, Issue 5, Article no. 55202, 2025.
Anna Tuhkuri-Matvejeff, Ville Silvonen, Paavo Heikkilä, Enni Sanmark, Jani Hakala, Niina Kuittinen, Ahmed Geneid, Anne-Maria Laukkanen, Paavo Alku, Lotta-Maria Oksanen, Topi Rönkkö, Aimo Taipale, Sampo Saari: Systematic review of respiratory particle measurement studies and a new method for human particle emission measurement during breathing, coughing, and voice production. Journal of Aerosol Science, Vol. 189, Article 106619, 2025.
Saska Tirronen, Farhad Javanmardi, Hilla Pohjalainen, Sudarsana Reddy Kadiri, Kiran Reddy Mittapalle, Pyry Helkkula, Kasimir Kaitue, Mikko Minkkinen, Heli Tolppanen, Tuomo Nieminen, Paavo Alku: Towards robust heart failure detection in digital telephony environments by utilizing transformer-based codec inversion. Speech Communication, Vol. 173, Article 103279, 2025.
Manila Kodali, Luna Ansari, Sudarsana Reddy Kadiri, Shrikanth Narayanan, Paavo Alku: Automatic classification of vocal intensity categories from amplitude-normalized speech signals by comparing acoustic features and classifier models. Speech Communication, Vol. 174, Article 103288, 2025.
Mari Leppävuori,Tero Ikävalko, Mathias Aaen, Cathrine Sadolin, Paavo Alku, Anne-Maria Laukkanen: ‘Metal’ and ‘Density’ in phonation according to Complete Vocal Technique: Double-case study with special reference to vocal efficiency and economy. Folia Phoniatrica et Logopaedica, 2026 (In press).
Prathamesh Parasharam Patil, Mittapalle Kiran Reddy, Paavo Alku: Classification of phonation types in singing and speaking voice using self-supervised learning models. Speech Communication, 2026 (In press).

II Book chapters:

Paavo Alku: Estimation of the glottal excitation of speech with pitch-synchronous iterative adaptive inverse filtering, In: Visual representations of speech signals, M. Cooke, S. Beet, M. Crawford (Eds)., Wiley, Chichester, UK, pp. 139-146, 1993.
Anne-Maria Laukkanen, Paavo Alku, Matti Airas, Teija Waaramaa: The role of voice in the expression and perception of emotions In: Emotions of the Human Voice, Volume I. K. Izdebski (Ed.) Plural Publishing: San Diego, pp. 171-184, 2008.
Paavo Alku, Ramón Hernández-Villoria, Sneha Das: Glottal inverse filtering and its application in the automatic classification of diseases from speech. In: Voice-related Biomarkers, Mette Pedersen, Neveen Hassan Nashaat Valentina Camesasca, Ramón Hernández Villoria, Sneha Das (Eds), Springer Nature: Cham, Switzerland, pp. 53-71, 2026.

III Articles in international conference proceedings:

Matti Karjalainen, Toomas Altosaar, Paavo Alku: QuickSig-An Object-Oriented Signal Processing Environment. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp.1682-1685, New York, 1988.
Paavo Alku, Unto Laine: A New Glottal LPC Method for Voice Coding and Inverse Filtering. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), pp. 1831-1834, Portland, 1989.
Paavo Alku, Unto Laine: Bi-Directional Linear Prediction - A New LPC-based Method for Signal Processing. Proc. AMSE International Conference Signals & Systems, Vol 1, pp. 101-114, Brighton, 1989.
Paavo Alku, Unto Laine: A New Glottal LPC Method of Low Complexity for Speech Analysis and Coding. Proc. Eurospeech-89, Vol. 2, pp. 31-34, Paris, 1989.
Matti Karjalainen, Toomas Altosaar, Paavo Alku, Lauri Lehtinen, Seppo Helle: Speech Processing in the Object-Oriented DSP Environment QuickSig. Proc. Eurospeech-89, pp. 450-453, Paris, 1989.
Paavo Alku: Low Bit Rate Speech Coding with Glottal Linear Prediction. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), pp. 2149-2152, New Orleans, 1990.
Paavo Alku: Comparison of Simple All-Zero, All-Pole, and Pole-Zero Pre-emphasis in Linear Predictive Analysis. Proc. IASTED Int. Conf. Signal Processing and Digital Filtering, pp. 159-163, Lugano, 1990.
Paavo Alku, Unto Laine: Direct estimation of the Minimum Phase Polynomial of a Linear Phase FIR without Explicit Root Solving. Proc. European Signal Processing Conference (EUSIPCO), pp. 561-564, Barcelona, 1990.
Paavo Alku: Glottal-LPC based coding of telephone band vowels with simple all-pole excitation. Proc. Int. Conf. on Spoken Language Processing, pp. 89-92, Kobe, 1990.
Paavo Alku, Erkki Vilkman, Unto Laine: A comparison of EGG and a new inverse filtering method in phonation change from breathy to normal. Proc. Int. Conf. on Spoken Language Processing, pp. 197-200, Kobe, 1990.
Paavo Alku: Coding of telephone band speech at 5 kbit/s based on glottal excitation analysis. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), pp. 332-335, Singapore, 1991.
Paavo Alku, Erkki Vilkman, Unto Laine: Analysis of glottal waveform in different phonation types using the new IAIF-method. Proc. XII Int. Conf. of Phonetic Sciences, Vol. 4, pp. 362-365, Aix-en-Provence, 1991.
Paavo Alku: Glottal wave analysis with Pitch Synchronous Iterative Adaptive Inverse Filtering. Proc. EuroSpeech-91, pp. 1081-1084, Genova, 1991.
Paavo Alku: An automatic method to estimate the time-based parameters of the glottal pulseform. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. 2, pp. 29-32, San Francisco, 1992.
Paavo Alku: Estimation of the glottal excitation of signals "clean.wav" and "dirty.wav" with Pitch Synchronous Iterative Adaptive Inverse Filtering. Proc. ESCA Workshop, Comparing Speech Signal Representations, Sheffield, 1992.
Paavo Alku: Inverse filtering of the glottal waveform using the Itakura-Saito distortion measure. Proc. Int. Conf. on Spoken Language Processing, pp. 847-850, Banff, 1992.
Erkki Vilkman, Marketta Sihvo, Paavo Alku, Anne-Maria Laukkanen, Eeva Pekkarinen: Objective analysis of speech profile phonations of normal female subjects in a vocally-loading task, Hacki T. (editor), Aktuelle phoniatrisch-pädaudiologische Aspekte, Renate Gross Verlag, Berlin, pp. 174-181, ISBN 3-926468-10-6, 1993.
Erkki Vilkman, Paavo Alku: Register shift in lower pitch range. Proc. Stocholm Music Acoustics Conference, pp. 271-276, Stockholm, 1993.
Paavo Alku, Matti Karjalainen, Toomas Altosaar: QuickSig - An object oriented tool for digital signal processing in the IBM-PC-Environment. Proc. Asia-Pacific Symposium on Information and Telecommunication Technologies, paper 9.1, Bangkok, 1993.
Paavo Alku, Erkki Vilkman: Estimation of the glottal pulseform based on Discrete All-Pole modelling. Proc. Int. Conf. on Spoken Language Processing, pp. 1619-1622, Yokohama, 1994.
Erkki Vilkman, Eija-Riitta Lauri, Paavo Alku, Eeva Pekkarinen, Marketta Sihvo: Changes in time-based glottal waveform parameters due to loading of voice in different humidity conditions. Proc. Third Nordic Congress on Logopedics and Phoniatrics, Edited by Bent E. Kjær, pp. 39-42, Göteborg, 6-9.10.1994, Sweden.
Paavo Alku, Erkki Vilkman: Comparing methods for quantifying the voice source of different phonation types inverse filtered from acoustic speech signals. Proc. XIIIth Int. Congress on Phonetic Sciences, Vol. 2, pp. 422-425, Stockholm, 1995.
Anne-Maria Laukkanen, Erkki Vilkman, Paavo Alku, Hanna Oksanen: On the perception of emotional content in speech. Proc. XIIIth Int. Congress of Phonetic Sciences, Vol. 1, pp. 246-249, Stockholm, 1995.
Paavo Alku, Erkki Vilkman: A frequency domain method for parametrization of the voice source. Proc. Int. Conf. on Spoken Language Processing, pp. 1569-1572, Philadelphia, 1996.
Paavo Alku, Susanna Varho: A new linear predictive method for spectral estimation of voiced speech. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), Vol. 4, pp. 2649-2652, Hong Kong, 1997.
Susanna Varho, Paavo Alku: A linear predictive method using extrapolated samples for modelling of voiced speech. Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, session 4, pp. 13-16, New Paltz, New York, 1997.
Susanna Varho, Paavo Alku: Regressive linear prediction with triplets - An effective all-pole modelling technique for speech processing. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), Vol. 4, pp. 194-197, Monterey, California, USA, 1998.
Susanna Varho, Paavo Alku: Spectral estimation of voiced speech with regressive linear prediction. Proc. European Signal Processing Conference (EUSIPCO), Vol. 2, pp. 1189-1192, Rhodes, Greece, 1998.
Paavo Alku, Susanna Varho: A new linear predictive method for compression of speech signals. Proc. International Conference on Spoken Language Processing (ICSLP), Vol. 6, pp. 2563-2566, Sydney, Australia, 1998.
Paavo Alku, Juha Vintturi, Erkki Vilkman: Analyzing the effect of secondary excitations of the vocal tract on vocal intensity in different loudness conditions. Proc. International Conference on Spoken Language Processing (ICSLP), Vol. 2, pp. 535-538, Sydney, Australia, 1998.
Juha Vintturi, Paavo Alku, Eija-Riitta Lauri, Erkki Vilkman: Combined time and amplitude parameter of the glottal flow waveform as an indicator of changes in vocal performance. Proc. of the 24th Congress of the International Association of Logopedics and Phoniatrics (IALP), Amsterdam, The Netherlands, Aug. 23-27, 1998. Vol. 1, pp. 134-137. Printed in 1999.
Marketta Sihvo, Eija-Riitta Lauri, Paavo Alku, Eeva Sala, Erkki Vilkman: Subjective reports on voice changes during prolonged loud reading. Proc. of the 24th Congress of the International Association of Logopedics and Phoniatrics (IALP), Amsterdam, The Netherlands, Aug. 23-27, 1998. Vol. 1, pp. 101-103. Printed in 1999.
Eija-Riitta Lauri, Paavo Alku, Erkki Vilkman, Eeva Sala, Marketta Sihvo: Changes in the ratio between the flow amplitude and the negative peak amplitude of the first derivative of the glottal flow waveform during vocal loading. Proc. of the 24th Congress of the International Association of Logopedics and Phoniatrics (IALP), Amsterdam, The Netherlands, Aug. 23-27, 1998. Vol. 1, pp. 53-55. Printed in 1999.
Susanna Varho, Paavo Alku: A new predictive method for all-pole modelling of speech spectra with a compressed set of parameters. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), Vol. 3, pp. 126-129, Orlando, Florida, USA, May 30-June 2, 1999.
Paavo Alku, Juha Vintturi, Erkki Vilkman: Linearity of the function between the sound pressure level of speech and the negative peak amplitude of the differentiated glottal flow for voices of different intensities. Proc. XIVth Int. Congress of Phonetic Sciences (ICPhS), Vol. 2, pp. 977-980, San Francisco, California, USA, Aug. 1-7, 1999.
Mietta Lennes, Anne Lehtokoski, Paavo Alku, Risto Näätänen: Acoustic, psychoacoustic, and psychophysiological measures of distance in the Finnish vowel space. Proc. XIVth Int. Congress of Phonetic Sciences (ICPhS), Vol. 3, pp. 2465-2468, San Francisco, California, USA, Aug. 1-7, 1999.
Susanna Varho, Paavo Alku: A linear predictive method for highly compressed presentation of speech spectra. Proc. IEEE Int. Symposium on Circuits and Systems (ISCAS), Vol. 5, pp. 57-60, Geneva, Switzerland, May 28-31, 2000.
Paavo Alku, Tom Bäckström, Juha Vintturi, Erkki Vilkman: Effects of prolonged oral reading on spectral decay of the glottal flow. Proc. of the 4th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, pp. 34-41, Jena, Germany, April 7-8, 2000.
Erkki Vilkman, Paavo Alku, Juha Vintturi: Dynamic extremes of voice in the light of acoustic and physiologic paramaters. Proc. of the 4th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, pp. 14-21, Jena, Germany, April 7-8, 2000.
Juha Vintturi, Paavo Alku, Erkki Vilkman: Objective effects of vocal loading and rest on amplitude quotient (AQ) in females and males. Proc. of the 4th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, pp. 139-146, Jena, Germany, April 7-8, 2000.
Susanna Varho, Paavo Alku: All-pole spectral modelling of voiced speech with a highly compressed set of parameters. Proc. European Signal Processing Conference (EUSIPCO), Vol. 1, pp. 167-170, Tampere, Finland, Sept. 4-8, 2000.
Paavo Alku, Susanna Varho: A frequency domain method to improve modelling of formants in speech coding applications of linear prediction. Proc. Nordic Signal Processing Symposium (NorSig), pp. 109-112, Kolmården, Sweden, June 13-15, 2000.
Susanna Varho, Paavo Alku: Linear prediction of speech by sample grouping. Proc. Nordic Signal Processing Symposium (NorSig), pp. 113-116, Kolmården, June 13-15, Sweden, 2000.
Paavo Alku, Jan Svec, Erkki Vilkman, Frantisek Sram: Analysis of voice production in breathy, normal and pressed phonation by comparing inverse filtering and videokymography. Proc. International Conference on Spoken Language Processing (ICSLP), Vol. III, pp. 885-888, Beijing, China, Oct. 16-20, 2000.
Paavo Alku, Hannu Tiitinen, Kalle Palomäki, Päivi Sivonen: MEG-measurements of brain activity reveal the link between human speech production and perception. Proc. International Conference on Spoken Language Processing (ICSLP), Vol. II, pp. 11-14, Beijing, China, Oct. 16-20, 2000.
Kalle Palomäki, Paavo Alku, Ville Mäkinen, Patrick May, Hannu Tiitinen: Neuromagnetic study on localization of speech sounds. Proc. International Conference on Spoken Language Processing (ICSLP), Vol. III, pp. 462-465, Beijing, China, Oct. 16-20, 2000.
Susanna Varho, Paavo Alku: Separated linear prediction - Improved spectral modelling by sample grouping. Proc. IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), Vol. 2, pp. 731-735, Honolulu, Hawaii, Nov. 5-8, 2000.
Hannu Tiitinen, Kalle Palomäki, Ville Mäkinen, Patrick May, Paavo Alku: Neuromagnetic measurement of sound location processing in the human brain. Proc. Biomag 2000, pp. 99-102, Espoo, Finland, August 13-16, 2000.
Paavo Alku, Erkki Vilkman, Tom Bäckström, Juha Vintturi: Normalised amplitude quotient for parameterisation of the glottal flow. Proc. of the 5th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, Groningen, Paper no. 1, pp. 1-8, The Netherlands, April 27-28, 2001.
Tom Bäckström, Paavo Alku, Erkki Vilkman: An analysis environment for studying effects of vocal loading from continuous speech. Proc. of the 5th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, Paper no. 2, pp. 1-5, Groningen, The Netherlands, April 27-28, 2001.
Erkki Vilkman, Paavo Alku, Juha Vintturi: Closing quotient and amplitude-based effective main excitation time in characterisation of effects of vocal warm-up on the glottal flow waveform. Proc. of the 5th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, Paper no. 20, pp. 1-8, Groningen, The Netherlands, April 27-28, 2001.
Paavo Alku, Juha Vintturi, Erkki Vilkman: The effect of fundamental frequency per se on vocal intensity in soft, normal, and loud phonation. Proc. of the 25th Congress of the International Association of Logopedics and Phoniatrics (IALP), Montreal, Canada, Aug. 5-9, 2001.
Erkki Vilkman, Paavo Alku: Characterisation of phonation types using a new glottal source parameter NAQ. Proc. of the 25th Congress of the International Association of Logopedics and Phoniatrics (IALP), Montreal, Canada, Aug. 5-9, 2001.
Juha Vintturi, Paavo Alku, Marketta Sihvo, Erkki Vilkman: Relationship between subjective symptoms and acoustic parameters after vocal loading in healthy voices. Proc. of the 25th Congress of the International Association of Logopedics and Phoniatrics (IALP), Montreal, Canada, Aug. 5-9, 2001.
Paavo Alku, Juha Vintturi, Erkki Vilkman: The use of fundamental frequency raising as a strategy for increasing vocal intensity in soft, normal, and loud phonation. Proc. Eurospeech 2001, Vol. 2, pp. 919-922, Aalborg, Denmark, Sept. 3-7, 2001.
Federico Avanzini, Paavo Alku, Matti Karjalainen: One-delayed-mass model for efficient synthesis of glottal flow. Proc. Eurospeech 2001, Vol. 1, pp. 51-54, Aalborg, Denmark, Sept. 3-7, 2001.
Federico Avanzini, Carlo Drioli, Paavo Alku: Synthesis of the voice source using a physically-informed model of the glottis. Proc. International Symposium on Musical Acoustics (ISMA), Vol. 1, pp. 31-34, Perugia, Italy, September 10-14, 2001.
Tom Bäckström, Paavo Alku, Bastiaan Kleijn: A time-domain reformulation of linear prediction equivalent to the LSP decomposition. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. I, pp. 661-664, Orlando, Florida, USA, 2002.
Paavo Alku, Tom Bäckström: All-pole modeling technique based on the weighted sum of the LSP polynomials. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. I, pp. 665-668, Orlando, Florida, USA, 2002.
Hannu Tiitinen, Kalle Palomäki, Ville Mäkinen, Patrick May, Paavo Alku: Representation of auditory space in human auditory cortex: Effects of ILD, ITD and 3D stimulation techniques. Proc. 13th Int. Conference on Biomagnetics (Biomag2002), pp. 128-130, Jena, Germany, Aug. 10-14, 2002.
Jussi Valtonen, Patrick May, Ville Mäkinen, Paavo Alku, Hannu Tiitinen: The irrelevant sound effect and cortical processing of speech and non-speech stimuli. Proc. 13th Int. Conference on Biomagnetics (Biomag2002), pp. 382-384, Jena, Germany, Aug. 10-14, 2002.
Anna Mari Mäkelä, Paavo Alku, Hannu Tiitinen: The Auditory N1m Reveals Vowel Identity Representation in the Left Hemisphere of Human Auditory Cortex. Proc. 13th Int. Conference on Biomagnetics (Biomag2002), pp. 356-358, Jena, Germany, Aug. 10-14, 2002.
Paavo Alku, Tom Bäckström: All-pole modeling of wide-band speech using weighted sum of the LSP-polynomials. Proc. Int. Conference on Spoken Language Processing (ICSLP'02), pp. 977-980, Denver, Colorado, USA, Sept. 16-20, 2002.
Zhijian Yuan, Tom Bäckström, Paavo Alku: All-pole modelling of noisy speech with the Weighted Sum of the Line Spectrum Pair. Proc. Nordic Signal Processing Conference, Tromsö-Trondheim, Norway, Oct. 4-7, 2002.
Paavo Alku, Tom Bäckström: All-pole modeling of wide-band speech with symmetric linear prediction. Proc. Int. Conf. on Acoustics, Speech and Signal Proc. (ICASSP'03), Vol. 1, pp. 152-155, Hong Kong, China, April 6-10, 2003.
Tom Bäckström, Paavo Alku: On the stability of constrained linear predictive models. Proc. Int. Conf. on Acoustics, Speech and Signal Proc. (ICASSP'03), Vol. 6, pp. 285-288, Hong Kong, China, April 6-10, 2003.
Sari Nenonen, Anna Shestakova, Paavo Alku, Minna Huotilainen: Perception of vowel length in native speakers and second-language users of a quantity language. Proc. The 15th Int. Congress on Phonetic Sciences, pp. 531-534, Barcelona, Spain, Aug. 3-9, 2003.
Erkki Vilkman, Laura Lehto, Tom Bäckström, Paavo Alku: Vocal loading of call centre personnel. Proc. of the 6th International Workshop, Advances in Quantitative Laryngoscopy, Voice and Speech Research, paper no. xx, pp. 1-6, Hamburg, Germany, April 3-5, 2003.
Paavo Alku, Tom Bäckström: Linear predictive method with low-frequency emphasis. Proc. Eurospeech 2003, pp. 433-436, Geneve, Switzerland, Sept. 1-4, 2003.
Paavo Alku: Parameterisation of the glottal flow estimated by inverse filtering. (Invited talk). Proc. ISCA Workshop on Voice Quality: Functions, analysis and synthesis (VOQUAL03), pp. 81-87, Geneva, Switzerland, Aug. 27-29, 2003.
Matti Airas, Paavo Alku: Emotions in short vowel segments: Effects of the glottal flow as reflected by the normalized amplitude quotient. Proc Tutorial and Research Workshop, Affective Dialogue Systems, pp. 13-24, Kloster Irsee, Germany, June 14-16, 2004.
Anna-Mari Mäkelä, Paavo Alku, Patrick May, Ville Mäkinen, Hannu Tiitinen: Cortical activity elicited by isolated vowels and diphthongs. Proc. Biomag 2004, pp. 515-516, Boston, Massachusetts, USA, August 8-12, 2004.
Hannu Tiitinen, Anna-Mari Mäkelä, Ville Mäkinen, Patrick May, Paavo Alku: Periodic glottal excitation and formant frequencies in the perception of vowels. Proc. Biomag 2004, pp. 553-554, Boston, Massachusetts, USA, August 8-12, 2004.
Anna-Mari Mäkelä, Paavo Alku, Ville Mäkinen, Hannu Tiitinen: The auditory N100m response reflects glides in speech fundamental frequency. Proc. Biomag 2004, pp. 517-518, Boston, Massachusetts, USA, August 8-12, 2004.
Hannu Tiitinen, Kalle Palomäki, Ville Mäkinen, Patrick May, Paavo Alku: Behavioral detection of spatial stimuli is reflected in auditory cortical dynamics. Proc. Biomag 2004, pp. 551-552, Boston, Massachusetts, USA, August 8-12, 2004.
Paavo Alku, Brad Story, Matti Airas: Evaluation of an inverse filtering technique using physical modeling of voice production. Proc. of the Int. Conference on Spoken Language Processing, Jeju Island, Korea, Oct. 4-8, 2004.
Hannu Pulakka, Paavo Alku, Svante Granqvist, Stellan Hertegård, Hans Larsson, Anne-Maria Laukkanen, Per-Åke Lindestad, Erkki Vilkman^:Analysis of the voice source in different phonation types: Simultaneous high-speed imaging of the vocal fold vibration and glottal inverse filtering. Proc. of the Int. Conference on Spoken Language Processing, Jeju Island, Korea, Oct. 4-8, 2004.
Tom Bäckström, Matti Airas, Laura Lehto, Paavo Alku: Objective Quality Measures for Glottal Inverse Filtering of Speech Pressure Signals. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. 1, pp. 897-900, Philadelphia, USA, 2005.
Laura Laaksonen, Juho Kontio, Paavo Alku: Artificial Bandwidth Expansion Method to Improve Intelligibility and Quality of AMR-Coded Narrowband Speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. 1, pp. 809-812, Philadelphia, USA, 2005.
Eva Björkner, Johan Sundberg, Paavo Alku: Subglottal Pressure and NAQ Variation in Voice Production of Classically Trained Baritone Singers. Proc. 9^th European Conference on Speech Communication and Technology (Interspeech’2005), pp. 1057-1060, September 4-8, Lisbon, Portugal.
Matti Airas, Hannu Pulakka, Tom Bäckström, Paavo Alku: A Toolkit for Voice Inverse Filtering and Parametrisation. Proc. 9^th European Conference on Speech Communication and Technology (Interspeech’2005), pp. 2145-2148, September 4-8, Lisbon, Portugal.
Paavo Alku, Matti Airas, Tom Bäckström, Hannu Pulakka: Group Delay Function as a Means to Assess Quality of Glottal Inverse Filtering. Proc. 9^th European Conference on Speech Communication and Technology (Interspeech’2005), pp. 1053-1056, September 4-8, Lisbon, Portugal.
Paavo Alku, Jaromir Horáček, Matti Airas, Anne-Maria Laukkanen^:Assesment of glottal inverse filtering by using aeroelastic modelling of phonation and FE modelling of vocal tract. Proc. 4^th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA’05), pp. 73-76, Oct. 29-31, Firenze, Italy.
Eva Björkner, Johan Sundberg, Paavo Alku: NAQ variation with Ps in classically trained baritone singers. Proc. 6^th Pan-European Voice Conference, London, UK, 31 Aug - 3 Sept, 2005.
Carlo Magi, Tom Bäckström, Paavo Alku: Objective and subjective evaluation of seven selected all-pole modelling methods in processing of noise-corrupted speech. Proc. of Nordic Signal Processing Symposium (NORSIG2006), Reykjavik, Iceland, June 7-9, 2006.
Tom Bäckström, Paavo Alku: Harmonic all-pole modelling for glottal inverse filtering. In Proc. of Nordic Signal Processing Symposium (NORSIG2006), Reykjavik, Iceland, June 7-9, 2006.
Laura Lehto, Erkki Vilkman, Paavo Alku: Voice Ergonomics in Call-Centre Customer Service Advisors: Effects of a Short Vocal Training Course. Proc. of the 38^th Annual Meeting of the Nordic Ergonomics Society, pp.227-230, Hämeenlinna, Finland, Sept. 24-27, 2006.
Hannu Pulakka, Laura Laaksonen, Paavo Alku: Quality Improvement of Telephone Speech by Artificial Bandwidth Expansion – Listening Tests in Three Languages. Proc. of Int. Conference on Spoken Language Processing, pp. 1419-1422, Pittsburgh, USA, Sept. 17-21, 2006.
Matti Airas, Paavo Alku: Comparison of Multiple Voice Source Parameters in Different Phonation Types. Proc. of Interspeech, Aug. 27-31, Antwerp, Belgium, 2007.
Carlo Magi, Tom Bäckström, Paavo Alku: Stabilised Weighted Linear Prediction – A Robust All-Pole Method for Speech Processing. Proc. of Interspeech, Aug. 27-31, Antwerp, Belgium, 2007.
Hannu Pulakka, Paavo Alku, Laura Laaksonen, Päivi Valve: The Effect of Highband Harmonic Structure in the Artificial Bandwidth Expansion of Telephone Speech. Proc. of Interspeech, Aug. 27-31, Antwerp, Belgium, 2007.
Matti Airas, Paavo Alku, Martti Vainio: Laryngeal voice quality changes in expression of prominence in continuous speech. Proc. 5^th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA’07), pp. 135-138, Dec. 13-15, Firenze, Italy.
Laura Matilainen, Sanna Talvitie, Paavo Alku, Anna-Mari Mäkelä, Ville Mäkinen, Patrick May, Eero Pekkonen, Hannu Tiitinen: The cortical processing of rising-intensity tonal and speech stimuli in young adults: Effects of spectral complexity. International Congress Series 1300, pp. 49-52, 2007.
Hannu Tiitinen, Laura Matilainen, Sanna Talvitie, Paavo Alku, Anna-Mari Mäkelä, Ville Mäkinen, Eero Pekkonen, Patrick May: The effects of aging on the processing of rising-intensity tonal and speech stimuli. International Congress Series 1300, pp. 85-88, 2007.
Sanna Talvitie, Laura Matilainen, Eero Pekkonen, Paavo Alku, Anna-Mari Mäkelä, Ville Mäkinen, Patrick May, Hannu Tiitinen: The effects of cortical stroke on the processing of spectrally impoverished and enriched auditory stimuli. International Congress Series 1300, pp. 721-724, 2007.
Jouni Pohjalainen, Carlo Magi, Paavo Alku: Enhancing noise robustness in automatic speech recognition using stabilized weighted linear prediction (SWLP). Proc. of ISCA Tutorial and Research Workshop (ITRW) on "Speech Analysis and Processing for Knowledge Discovery", Aalborg, Denmark, June 4-6, 2008.
Tuomo Raitio, Antti Suni, Hannu Pulakka, Martti Vainio, Paavo Alku: HMM-Based Finnish Text-to-Speech System Utilizing Glottal Inverse Filtering. In Proc. of the Interspeech 2008, Brisbane, Australia, September 22-26, 2008.
Paavo Alku, Carlo Magi, Tom Bäckström: DC-constrained linear prediction for glottal inverse filtering. Proc. of the Interspeech 2008, Brisbane, Australia, September 22-26, 2008.
Tomi Kinnunen, Paavo Alku: On separating glottal source and vocal tract information in telephony speaker verification. Proc. of the IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP’09), Taipei, Taiwan, April 19-14, 2009.
Heikki Kallasjoki, Kalle J. Palomäki, Carlo Magi, Paavo Alku, Mikko Kurimo: Noise Robust LVCSR Feature Extraction Based on Stabilized Weighted Linear Prediction. Proc. International Conference on Speech and Computer (SPECOM'2009), St. Petersburg, Russia, June 21-25, 2009.
Jouni Pohjalainen, Heikki Kallasjoki, Kalle J. Palomäki, Mikko Kurimo, Paavo Alku: Weighted Linear Prediction for Speech Analysis in Noisy Conditions. Proc. of the Interspeech 2009, Brighton, UK, 6-10 Sept. 2009.
Martti Vainio, Antti Suni, Tuomo Raitio, Jani Nurminen, Juhani Järvikivi, Paavo Alku: New Method for Delexicalization and its Application to Prosodic Tagging for Text-to-Speech Synthesis. Proc. of the Interspeech 2009, Brighton, UK, 6-10 Sept. 2009.
Atte Aalto, Paavo Alku, Jarmo Malinen: A LF-pulse from a simple glottal flow model. Proc. of the 6^th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA’09), Firenze, Italy, December 14 - 16, 2009.
Rahim Saeidi, Jouni Pohjalainen, Tomi Kinnunen, Paavo Alku: Temporally weighted linear prediction features for speaker verification in additive noise. Proc. of the Odyssey 2010 - The Speaker and Language Recognition Workshop, Brno, Czech Republic, 28 June – 1 July 2010.
Hannu Pulakka, Ville Myllylä, Laura Laaksonen, Paavo Alku: Bandwidth extension of telephone speech using a filter bank implementation for highband Mel spectrum. Proc. of the European Signal Processing Conference 2010 (EUSIPCO), Aalborg, Denmark, August 23-27, 2010.
Jouni Pohjalainen, Rahim Saeidi, Tomi Kinnunen, Paavo Alku: Extended Weighted Linear Prediction (XLP) analysis of speech and its application to speaker verification in adverse conditions. Proc. of Interspeech’10, Makuhari, Japan, Sept. 26-30, 2010.
Martti Vainio, Matti Airas, Juhani Järvikivi, Paavo Alku: Laryngeal voice quality in the expression of focus. Proc. of Interspeech’10, Makuhari, Japan, Sept. 26-30, 2010.
Tuomo Raitio, Antti Suni, Hannu Pulakka, Martti Vainio, Paavo Alku: Comparison of formant enhancement methods for HMM-based speech synthesis. Proc. of the 7th ISCA Speech Synthesis Workshop, Kyoto, Japan, Sept. 22-24, 2010.
Antti Suni, Tuomo Raitio, Martti Vainio, Paavo Alku: The GlottHMM speech synthesis entry for Blizzard Challenge 2010. Proc. of the Blizzard Challenge 2010 Workshop, Kyoto, Japan, Sept. 25, 2010.
Hannu Pulakka, Ulpu Remes, Kalle Palomäki, Mikko Kurimo, Paavo Alku: Speech bandwidth extension using Gaussian Mixture Model-based estimation of the highband Mel spectrum. Proc. of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP’11), Prague, Czech Republic, May 22-27, 2011.
Tuomo Raitio, Antti Suni, Hannu Pulakka, Martti Vainio, Paavo Alku: Utilizing glottal source pulse library for generating improved excitation signal for HMM-based speech synthesis. Proc. of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP’11), Prague, Czech Republic, May 22-27, 2011.
George Kafentzis, Yannis Stylianou, Paavo Alku: Glottal inverse filtering using Stablilised Weighted Linear Prediction. In Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP’11), Prague, Czech Republic, May 22-27, 2011.
Jouni Pohjalainen, Paavo Alku, Tomi Kinnunen: Shout detection in noise. Proc. of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP’11), Prague, Czech Republic, May 22-27, 2011.
Hannu Pulakka, Ulpu Remes, Santeri Yrttiaho, Kalle Palomäki, Mikko Kurimo, Paavo Alku: Low-frequency bandwidth extension of telephone speech using sinusoidal synthesis and gaussian mixture model. Proc. of Interspeech’11, Florence, Italy, Aug. 28-31, 2011.
Sami Keronen, Jouni Pohjalainen, Paavo Alku, Mikko Kurimo: Noise robust feature extraction based on Extended Weighted Linear Prediction in LVCSR. Proc. of Interspeech’11, Florence, Italy, Aug. 28-31, 2011.
Jouni Pohjalainen, Tuomo Raitio, Paavo Alku: Detection of shouted speech in the presence of ambient noise. Proc. of Interspeech’11, Florence, Italy, Aug. 28-31, 2011.
Tuomo Raitio, Antti Suni, Martti Vainio, Paavo Alku: Analysis of HMM-based Lombard speech synthesis. Proc. of Interspeech’11, Florence, Italy, Aug. 28-31, 2011.
Ricardo Sousa, Annibal Ferreira, Paavo Alku: Estimation of harmonic noise components of the glottal excitation. Proc. of the 7^th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA’11), Florence, Italy, Aug. 25-27, 2011.
Antti Suni, Tuomo Raitio, Martti Vainio, Paavo Alku: The GlottHMM entry for Blizzard Challenge 2011: Utilizing source unit selection in HMM-based speech synthesis for improved excitation generation. Proc. of the ISCA Blizzard Challenge 2011 Workshop, Turin, Italy, Sept. 2, 2011.
Cemal Hanilci, Tomi Kinnunen, Rahim Saeidi, Jouni Pohjalainen, Paavo Alku, Figen Ertas, Johan Sandberg, Maria Hansson-Sandsten: Comparing spectrum estimators in speaker verification under additive noise degradation. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’12), Kyoto, Japan, March 25-30, 2012.
Hannu Pulakka, Laura Laaksonen, Ville Myllylä, Santeri Yrttiaho, Paavo Alku: Conversational evaluation of artificial bandwidth extension of telephone speech using a mobile handset. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’12), Kyoto, Japan, March 25-30, 2012.
Tuomo Raitio, Marko Takanen, Olli Santala, Antti Suni, Martti Vainio, Paavo Alku: On measuring the intelligibility of synthetic speech in noise – Do we need a realistic noise environment? Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’12), Kyoto, Japan, March 25-30, 2012.
Jouni Pohjalainen, Paavo Alku: Robust speech analysis by lag-weighted linear prediction. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’12), Kyoto, Japan, March 25-30, 2012.
Cemal Hanilci, Tomi Kinnunen, Rahim Saeidi, Jouni Pohjalainen, Paavo Alku, Figen Ertas: Regularization of all-pole models for speaker verification under additive noise. Proc. Odyssey’12: The Speaker and Language Recognition Workshop, Singapore, June 25-28, 2012.
Emma Jokinen, Paavo Alku, Martti Vainio: Comparison of post-filtering methods for intelligibility enhancement of telephone speech. Proc. 20th European Signal Processing Conference (EUSIPCO), Bucharest, Romania, Aug 27-31, 2012.
Emma Jokinen, Paavo Alku, Martti Vainio: Utilization of the Lombard effect in post-ﬁltering for intelligibility enhancement of telephone speech. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Tuomo Raitio, Antti Suni, Martti Vainio, Paavo Alku: Wideband parametric speech synthesis using warped linear prediction. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Jouni Pohjalainen, Tuomo Raitio, Hannu Pulakka, Paavo Alku: Automatic detection of high vocal effort in telephone speech. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Martti Vainio, Daniel Aalto, Antti Suni, Anja Arnhold, Tuomo Raitio, Henri Seijo, Juhani Järvikivi, Paavo Alku: Effect of noise type and level on focus related fundamental frequency changes. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Harri Auvinen, Tuomo Raitio, Samuli Siltanen, Paavo Alku: Utilizing Markov Chain Monte Carlo (MCMC) method for improved glottal inverse filtering. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Paavo Alku, Jouni Pohjalainen, Martti Vainio, Anne-Maria Laukkanen, Brad Story: Improved formant frequency estimation from high-pitched vowels by downgrading the contribution of the glottal source with weighted linear prediction. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Alan Pinheiro, Tuomo Raitio, Danyane Gomes, Paavo Alku: Voice source analysis using biomechanical modeling and glottal inverse filtering. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Jaime Lorenzo-Trueba, Roberto Barra-Chicote, Tuomo Raitio, Nicolas Obin, Paavo Alku, Junichi Yamagishi, Juan M. Montero: Towards glottal source controllability in expressive speech synthesis. Proc. of Interspeech’12, Portland, Oregon, USA, Sept. 9-13, 2012.
Antti Suni, Tuomo Raitio, Martti Vainio, Paavo Alku: The GlottHMM Entry for Blizzard Challenge 2012: Hybrid Approach. Proc. of the Blizzard 2012 Workshop, Portland, Oregon, USA, Sept. 14, 2012.
Tuomo Raitio, Antti Suni, Martti Vainio, Paavo Alku: Comparing glottal-flow-excited statistical parametric speech synthesis methods. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’13), Vancouver, Canada, May 26-31, 2013.
Cemal Hanilci, Tomi Kinnunen, Rahim Saeidi, Jouni Pohjalainen, Paavo Alku, Figen Ertas: Speaker identification from shouted speech: Analysis and compensation. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’13), Vancouver, Canada, May 26-31, 2013.
Jouni Pohjalainen, Paavo Alku: Automatic detection of anger in telephone speech with robust autoregressive modulation filtering. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’13), Vancouver, Canada, May 26-31, 2013.
Sebastian Möller, Emilia Kelaidi, Friedemann Köster, Nicolas Côté, Patrick Bauer, Tim Fingscheidt, Thomas Schlien, Hannu Pulakka, Paavo Alku: Speech quality prediction for artificial bandwidth extension algorithms. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Cemal Hanilci, Tomi Kinnunen, Padmanabhan Rajan, Jouni Pohjalainen, Paavo Alku, Figen Ertas: Comparison of spectrum estimators in speaker verification: Mismatch conditions induced by vocal effort. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Emma Jokinen, Marko Takanen, Paavo Alku: Frequency-adaptive post-filtering for intelligibility enhancement of narrowband telephone speech. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Jouni Pohjalainen, Paavo Alku: Extended weighted linear prediction using the autocorrelation snapshot - A robust speech analysis method and its application to recognition of vocal emotions. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Manu Airaksinen, Brad Story, Paavo Alku: Quasi closed phase analysis for glottal inverse ﬁltering. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Padmanabhan Rajan, Tomi Kinnunen, Cemal Hanilci, Jouni Pohjalainen, Paavo Alku: Using group delay functions from all-pole models for speaker recognition. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Dhananjaya Gowda, Jouni Pohjalainen, Mikko Kurimo, Paavo Alku: Robust formant detection using group delay function and stabilized weighted linear prediction. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Tuomo Raitio, Antti Suni, Jouni Pohjalainen, Manu Airaksinen, Martti Vainio, Paavo Alku: Analysis and synthesis of shouted speech. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Bajibabu Bollepalli, Tuomo Raitio, Paavo Alku: Effect of MPEG audio compression on HMM-based speech synthesis. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Antti Suni, Reima Karhila, Tuomo Raitio, Mikko Kurimo, Martti Vainio, Paavo Alku: Lombard modified text-to-speech synthesis for improved intelligibility: Submission for the Hurricane Challenge 2013. Proc. of Interspeech’13, Lyon, France, August 25-29, 2013.
Antti Suni, Daniel Aalto, Tuomo Raitio, Paavo Alku, Martti Vainio: Wavelets for intonation modeling in HMM speech synthesis. Proc. of the 8th ISCA Speech Synthesis Workshop (SSW8), Barcelona, Spain, August 31- September 2, 2013.
Dhananjaya Gowda, Jouni Pohjalainen, Paavo Alku, Mikko Kurimo: Robust spectral representation using group delay function and stabilized weighted linear prediction for additive noise degradations. Proc. of the 7^th Conference on Speech Technology and Human-Computer Dialogue (SpeD 2013), Cluj-Napoca, Romania, Oct. 16-19, 2013.
Emma Jokinen, Marko Takanen, Paavo Alku: Comparison of post-processing methods for intelligibility enhancement of narrowband speech in a mobile phone framework. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’14), Florence, Italy, May 4-9, 2014.
Jouni Pohjalainen, Paavo Alku: Gaussian mixture linear prediction. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’14), Florence, Italy, May 4-9, 2014.
Jouni Pohjalainen, Paavo Alku: Multi-scale modulation filtering in automatic detection of emotions in telephone speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’14), Florence, Italy, May 4-9, 2014.
Tuomo Raitio, Heng Lu, John Kane, Antti Suni, Martti Vainio, Simon King, Paavo Alku: Voice source modelling using deep neural networks for statistical parametric speech synthesis. Proc. of the 22^nd European Signal Processing Conference (EUSIPCO), Lisbon, Portugal, Sept. 1-5, 2014.
Manu Airaksinen, Paavo Alku: Parameterization of the glottal source with the phase plane plot. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Manu Airaksinen, Tom Bäckström, Paavo Alku: Automatic estimation of the lip radiation effect in glottal inverse ﬁltering. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Tuomo Raitio, Antti Suni, Lauri Juvela, Martti Vainio, Paavo Alku: Deep neural network based trainable voice source model for synthesis of speech with varying vocal effort. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Emma Jokinen, Marko Takanen, Hannu Pulakka, Paavo Alku: Enhancement of speech intelligibility in near-end noise conditions with phase modification. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Emma Jokinen, Ulpu Remes, Marko Takanen, Kalle Palomäki, Mikko Kurimo, Paavo Alku: Spectral tilt modelling with GMMs for intelligibility enhancement of narrowband telephone speech. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Jouni Pohjalainen, Paavo Alku: Filtering and subspace selection for spectral features in detecting speech under physical stress. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Hannu Pulakka, Anssi Rämö, Ville Myllylä, Henri Toukomaa, Paavo Alku: Subjective voice quality evaluation of artificial bandwidth extension: Comparing different audio bandwidths and speech codecs. Proc. of Interspeech’14, Singapore, Sept. 14-18, 2014.
Emma Jokinen, Ulpu Remes, Marko Takanen, Kalle Palomäki, Mikko Kurimo, Paavo Alku: Spectral tilt modelling with extrapolated GMMs for intelligibility enhancement of narrowband telephone speech. Proc of The International Workshop on Acoustic Signal Enhancement (IWAENC 2014), Antibes – Juan les Pins, France, Sept. 8-11, 2014.
Manu Airaksinen, Tuomo Raitio, Paavo Alku: Noise robust estimation of the voice source using a deep neural network. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’15), Brisbane, Australia, April 19 – 24, 2015.
Kimmo Peltola, Henna Tamminen, Paavo Alku, Maija Peltola: Non-native production training with an acoustic model and orthographic or transcription cues. Proc. International Congress of Phonetic Sciences (ICPhS’15), Glasgow, UK, Aug. 10-14, 2015.
Katri Jähi, Paavo Alku, Maija Peltola: Does interest in language learning affect the non-native phoneme production in elderly learners? Proc. International Congress of Phonetic Sciences (ICPhS’15), Glasgow, UK, Aug. 10-14, 2015.
Antti Saloranta, Henna Tamminen, Paavo Alku, Maija Peltola: Learning of a non-native vowel through instructed production training. Proc. International Congress of Phonetic Sciences (ICPhS’15), Glasgow, UK, Aug. 10-14, 2015.
Manu Airaksinen, Tom Bäckström, Paavo Alku: Glottal inverse filtering based on quadratic programming. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Rahim Saeidi, Paavo Alku: Accounting for uncertainty of i-vectors in speaker recognition using uncertainty propagation and modified imputation. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Rahim Saeidi, Tuija Niemi, Hanna Karppelin, Jouni Pohjalainen, Tomi Kinnunen, Paavo Alku: Speaker recognition for speech under face cover. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Emma Jokinen, Ulpu Remes, Paavo Alku: Comparison of Gaussian process regression and Gaussian mixture models in spectral tilt modelling for intelligibility enhancement of telephone speech. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Hannu Pulakka, Ville Myllylä, Anssi Rämö, Paavo Alku: Speech quality evaluation of artificial bandwidth extension: Comparing subjective judgments and instrumental predictions. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Dhananjaya Gowda, Rahim Saeidi, Paavo Alku: AM-FM based filter bank analysis for estimation of spectro-temporal envelopes and its application for speaker recognition in noisy reverberant environments. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Tuomo Raitio, Lauri Juvela, Antti Suni, Martti Vainio, Paavo Alku: Phase perception of the glottal excitation of vocoded speech. Proc. of Interspeech’15, Dresden, Germany, Sept. 6-10, 2015.
Rizwan Ishaq, Dhananjaya Gowda, Paavo Alku, Begona Garcia Zapirain: Vowel enhancement in early stage Spanish esophageal speech using natural glottal flow pulse and vocal tract frequency warping. Proc. of the 6th Workshop on Speech and Language Processing for Assistive Technologies (SLPAT 2015), Dresden, Germany, Sept. 11, 2015.
Dhananjaya Gowda, Manu Airaksinen, Paavo Alku: Quasi closed phase analysis of speech signals using time varying weighted linear prediction for accurate formant tracking. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’16), Shanghai, China, March 20-25, 2016.
Lauri Juvela, Bajibabu Bollepalli, Manu Airaksinen, Paavo Alku: High-pitched excitation generation for glottal vocoding in statistical parametric speech synthesis using a deep neural network. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’16), Shanghai, China, March 20-25, 2016.
Johannes Abel, Magdalena Kaniewska, Cyril Guillaumé, Wouter Tirry, Hannu Pulakka, Ville Myllylä, Jari Sjöberg, Paavo Alku, Itai Katsir, David Malah, Israel Cohen, M. A. Tugtekin Turan, Engin Erzin, Thomas Schlien, Peter Vary, Amr H. Nour-Eldin, Peter Kabal, Tim Fingscheidt: A subjective listening test of six different artificial bandwidth extension approaches in English, Chinese, German, and Korean. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’16), Shanghai, China, March 20-25, 2016.
Emma Jokinen, Ulpu Remes, Paavo Alku: The use of read versus conversational Lombard speech in spectral tilt modeling for intelligibility enhancement in near-end noise conditions. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Emma Jokinen, Paavo Alku: Intelligibility enhancement at the receiving end of the speech transmission system - effects of far-end noise reduction. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Dhananjaya Gowda, Paavo Alku: Time-varying quasi-closed phase weighted linear prediction analysis of speech for formant tracking. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Manu Airaksinen, Lauri Juvela, Tom Bäckström, Paavo Alku: Automatic glottal inverse filtering with non-negative matrix factorization. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Manu Airaksinen, Bajibabu Bollepalli, Lauri Juvela, Zhizheng Wu, Simon King, Paavo Alku: GlottDNN - A full-band glottal vocoder for statistical parametric speech synthesis. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Rahim Saeidi, Ilkka Huhtakallio, Paavo Alku: Analysis of face mask effect on speaker recognition. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Lauri Juvela, Xin Wang, Shinji Takaki, Manu Airaksinen, Junichi Yamagishi, Paavo Alku: Using text and acoustic features in predicting glottal excitation waveforms for parametric speech synthesis with recurrent neural networks. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Lauri Juvela, Hirokazu Kameoka, Manu Airaksinen, Junichi Yamagishi, Paavo Alku: Majorisation-minimisation based optimisation of the composite autoregressive system with application to glottal inverse filtering. Proc. Interspeech’16, San Francisco, USA, Sept. 8-12, 2016.
Ana Ramírez López, Rahim Saeidi, Lauri Juvela, Paavo Alku: Normal-to-shouted speech spectral mapping for speaker recognition under vocal effort mismatch. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’17), New Orleans, USA, March 5-9, 2017.
Manu Airaksinen, Bajibabu Bollepalli, Jouni Pohjalainen, Paavo Alku: Frequency-warped time-weighted linear prediction for glottal vocoding. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’17), New Orleans, USA, March 5-9, 2017.
Tomi Kinnunen, Lauri Juvela, Paavo Alku, Junichi Yamagishi: Non-parallel voice conversion using i-vector PLDA: towards unifying speaker verification and transformation. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’17), New Orleans, USA, March 5-9, 2017.
Bajibabu Bollepalli, Manu Airaksinen, Paavo Alku: Lombard speech synthesis using long short-term memory recurrent neural networks. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’17), New Orleans, USA, March 5-9, 2017.
Paavo Alku, Hilla Pohjalainen, Manu Airaksinen: Aalto Aparat – A freely available tool for glottal inverse filtering and voice source parameterization. Proc. Subsidia: Tools and Resources for Speech Sciences, Malaga, Spain, June 21-23, 2017.
Sofoklis Kakouros, Okko Räsänen, Paavo Alku: Evaluation of spectral tilt measures for sentence prominence under different noise conditions. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Ville Vestman, Dhananjaya Gowda, Md Sahidullah, Paavo Alku, Tomi Kinnunen: Time-varying autoregressions for speaker verification in reverberant conditions. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Manu Airaksinen, Paavo Alku: Effects of training data variety in generating glottal pulses from acoustic features with DNNs. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Bajibabu Bollepalli, Lauri Juvela, Paavo Alku: Generative adversarial network-based glottal waveform model for statistical parametric speech synthesis. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Nonavinakere Prabhakera Narendra, Manu Airaksinen, Paavo Alku: Glottal source estimation from coded telephone speech using a deep neural network. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Lauri Juvela, Bajibabu Bollepalli, Junichi Yamagishi, Paavo Alku: Reducing mismatch in training of DNN-based glottal excitation models in a statistical parametric text-to-speech system. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Ana Ramírez López, Shreyas Seshadri, Lauri Juvela, Okko Räsänen, Paavo Alku: Speaking style conversion from normal to Lombard speech using a glottal vocoder and Bayesian GMMs. Proc. Interspeech’17, Stockholm, Sweden, August 20-24, 2017.
Lauri Juvela, Bajibabu Bollepalli, Xin Wang, Hirokazu Kameoka, Manu Airaksinen, Junichi Yamagishi, Paavo Alku: Speech waveform synthesis from MFCC sequences with generative adversarial networks. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’18), Calgary, Canada, April 15-20, 2018.
Lauri Juvela, Vassilis Tsiaras, Bajibabu Bollepalli, Manu Airaksinen, Junichi Yamagishi, Paavo Alku: Speaker-independent raw waveform model for glottal excitation. Proc. Interspeech’18, Hyderabad, India, September 2-6, 2018.
Manu Airaksinen, Lauri Juvela, Okko Räsänen, Paavo Alku: Time-regularized linear prediction for noise-robust extraction of the spectral envelope of speech. Proc. Interspeech’18, Hyderabad, India, September 2-6, 2018.
Nonavinakere Prabhakera Narendra, Paavo Alku: Dysarthric speech classification using glottal features computed from non-words, words and sentences. Proc. Interspeech’18, Hyderabad, India, September 2-6, 2018.
Manu Airaksinen, Lauri Juvela, Paavo Alku, Okko Räsänen: Data augmentation strategies for neural network F0 estimation. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’19), Brighton, UK, May 12-17, 2019.
Shreyas Seshadri, Lauri Juvela, Junichi Yamagishi, Okko Räsänen, Paavo Alku: Cycle-consistent adversarial networks for non-parallel vocal effort based speaking style conversion. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’19), Brighton, UK, May 12-17, 2019.
Lauri Juvela, Bajibabu Bollepalli, Junichi Yamagishi, Paavo Alku: Waveform generation for text-to-speech synthesis using pitch-synchronous multi-scale generative adversarial networks. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’19), Brighton, UK, May 12-17, 2019.
Shreyas Seshadri, Lauri Juvela, Paavo Alku, Okko Räsänen: Augmented CycleGANs for continuous scale normal-to-Lombard speaking style conversion. Proc. Interspeech’19, Graz, Austria, September 15-19, 2019.
Sudarsana Reddy Kadiri, Paavo Alku: Mel-cepstral coefficients of voice source waveforms for classification of phonation types in speech. Proc. Interspeech’19, Graz, Austria, September 15-19, 2019.
Lauri Juvela, Bajibabu Bollepalli, Junichi Yamagishi, Paavo Alku: GELP: GAN-excited liner prediction for speech synthesis from mel-spectrogram. Proc. Interspeech’19, Graz, Austria, September 15-19, 2019.
Bajibabu Bollepalli, Lauri Juvela, Paavo Alku: Lombard speech synthesis using transfer learning in a Tacotron text-to-speech system. Proc. Interspeech’19, Graz, Austria, September 15-19, 2019.
Hemant Kumar Kathania, Sudarsana Reddy Kadiri, Paavo Alku, Mikko Kurimo: Study of formant modification for children ASR. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’20), Barcelona, Spain, May 4-8, 2020.
Sudarsana Reddy Kadiri, Paavo Alku, Bayya Yegnanarayana: Comparison of glottal closure instants detection algorithms for emotional speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’20), Barcelona, Spain, May 4-8, 2020.
Sudarsana Reddy Kadiri, Rashmi Kethireddy, Paavo Alku: Parkinson's disease detection from speech using single frequency filtering cepstral coefficients. Proc. Interspeech’20, Shanghai, China, October 25-29, 2020.
Hemant Kumar Kathania, Sudarsana Reddy Kadiri, Paavo Alku, Mikko Kurimo: Spectral modification for recognition of children’s speech undermismatched conditions. Proc. 23rd Nordic Conference on Computational Linguistics (NoDaLiDa), May 31 - June 2, 2021, Reykjavik, Iceland.
Farhad Javanmardi, Sudarsana Reddy Kadiri, Manila Kodali, Paavo Alku: Comparing 1-dimensional and 2-dimensional spectral feature representations in voice pathology detection using machine learning and deep learning classifiers. Proc. Interspeech’22, Incheon, Korea, Sept. 18-22, 2022.
Sudarsana Reddy Kadiri, Farhad Javanmardi, Paavo Alku: Convolutional neural networks for classification of voice qualities from speech and neck surface accelerometer signals. Proc. Interspeech’22, Incheon, Korea, Sept. 18-22, 2022.
Saska Tirronen, Farhad Javanmardi, Manila Kodali, Sudarsana Reddy Kadiri, Paavo Alku: Utilizing WAV2VEC in database-independent voice disorder detection. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’23), Rhodes Island, Greece, June 4-10, 2023.
Farhad Javanmardi, Saska Tirronen, Manila Kodali, Sudarsana Reddy Kadiri, Paavo Alku: WAV2VEC-based detection and severity level classification of dysarthria from speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’23), Rhodes Island, Greece, June 4-10, 2023.
Manila Kodali, Sudarsana Reddy Kadiri, Laura Laaksonen, Paavo Alku: Automatic classification of vocal intensity category from speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’23), Rhodes Island, Greece, June 4-10, 2023.
Manila Kodali, Sudarsana Reddy Kadiri, Paavo Alku: Classification of vocal intensity category from speech using the wav2vec2 and whisper embeddings. Proc Interspeech’23, Dublin, Ireland, August 20-24, 2023.
Sudarsana Reddy Kadiri, Manila Kodali, Paavo Alku: Severity classification of Parkinson's disease from speech using single frequency filtering-based features. Proc Interspeech’23, Dublin, Ireland, August 20-24, 2023.
Manila Kodali, Sudarsana Reddy Kadiri, Paavo Alku: Fine-tuning of pre-trained models for classification of vocal intensity category from speech signals. Proc. Interspeech’24, Kos Island, Greece, 1-5 September, 2024.
Manila Kodali, Sudarsana Reddy Kadiri, Shrikanth Narayanan, Paavo Alku: Wavelet scattering network features for intensity category classification and prediction of SPL from speech. Proc. IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP’25), Hyderabad, India, April 6-11, 2025.

IV Other publications:

Paavo Alku: APC-kooderi I, Research report, Helsinki University of Technology, Communications Laboratory, 31.10.1985, 31 pages.
Paavo Alku: Numeronopeudella 16 kbit/s toimiva mukautuva ja ennustava puheenkoodausjärjestelmä, Master's thesis, Helsinki University of Technology, 21.2.1986, 75 pages.
Paavo Alku: APC-kooderi II & III, Research report, Helsinki University of Technology, Communications Laboratory, 27.10.1986, 34 + 114 pages.
Paavo Alku: Digitaalisen suodatuksen ja lineaarisen ennustuksen toteuttaminen QuickSig-signaalinkäsittelyohjelmistoon, Research report, Helsinki University of Technology, Communications Laboratory, 15.7.1987, 24 + 18 pages.
Paavo Alku: Lineaarinen ennustus puheenkäsittelyn menetelmänä, Licentiate Thesis, Helsinki University of Technology, 17.2.1988, 110 pages.
Unto Laine, Paavo Alku: Glottispulssianalyysi automaattisella käänteissuodatuksella, Fonetiikan päivät 1988, Otaniemi, pp. 107-125.
Paavo Alku, Erkki Vilkman, Unto Laine: EGG- ja AIF-menetelmän vertailu glottispulssianalyysissä, kun ääntö liukuu vuotoisesta normaaliin, Fonetiikan päivät-90, pp. 13-22, Oulu, 1990.
Paavo Alku, Seppo Valli: Puheen- ja kuvankoodaus, Prosessori, no. 10/92, ss. 40-45.
Paavo Alku: An automatic inverse filtering method for the analysis of glottal waveforms, Thesis for the degree of Doctor of Technology, Helsinki University of Technology, 13.3.1992.
Paavo Alku: Automaattinen käänteissuodatusmenetelmä glottisherätteen analysoimiseen, Finnish Journal of Logopedics and Phoniatrics, No. 2/92, pp. 3-13.
Eeva Pekkarinen, Paavo Alku, Eija-Riitta Lauri, Esko Nykyri, Marketta Sihvo, Petri Toivonen, Erkki Vilkman: Puhe- ja ääniammattien työympäristön kuormitustekijöiden yksittäis- ja yhteisvaikutukset äänentuottoon. Report 91010, Finnish Institute of Occupational Health, 1993.
Paavo Alku, Erkki Vilkman: Kaistaleveyden vaikutus glottisherätteen käänteissuodatuksessa, XVIII Fonetiikan päivät, Tampere, 2-3.9.1994, Tampereen yliopiston suomen kielen ja yleisen kielitieteen laitoksen julkaisuja 18, toim. Michael L. O'Dell, pp. 45-54.
Paavo Alku: Käänteissuodatus ja glottis-herätteen parametrointi. Äänen tutkimus ja äänihäiriöiden ennaltaehkäisy. Suomen Logopedis-foniatrisen yhdistyksen julkaisu 31, pp. 20-28, 1999.
Paavo Alku: Puolisynteettisten ääniärsykkeiden tuotto aivotutkimukseen. Akustiikkapäivät, Tampere, 4-5.10.1999, pp. 99-104, 1999.
Tom Bäckström, Paavo Alku: Viivaspektripareihin perustuva stabiili AR-menetelmä puheen spektrimallinnukseen. Fonetiikanpäivät, Espoo, 30-31.8.2002, pp. 67-73. 2002.
Johan Sundberg, Margareta Thalen, Paavo Alku, Erkki Vilkman: Measuring perceived phonatory pressedness in singing from flow glottograms, KTH Quarterly Report, (TMH-QPSR), Vol. 43, pp. 89-96, 2002.
Paavo Alku: Puheen tuottamisen kuvaaminen parametroimalla käänteissuodatuksella estimoitu glottisheräte. Puhe ja Kieli, Vol. 14, No. 1, pp. 5-16, 2004.
Hannu Pulakka, Paavo Alku, Svante Granqvist, Stellan Hertegård, Hans Larsson, Anne-Maria Laukkanen, Per-Åke Lindestad, Erkki Vilkman: Äänilähteen analysointia eri ääntötavoissa: Äänilähteen suurnopeuskuvauksen ja käänteissuodatetun glottisherätteen vertailua. Fonetiikan päivät 2004, pp. 36-39, 2004.
Matti Airas, Paavo Alku: Emootioiden vaikutus äänilähteeseen lyhyissä vokaalisegmenteissä NAQ-parametrin kuvaamana. Fonetiikan päivät 2004, pp. 40-43, 2004.
Sari Nenonen, Anna Shestakova, Paavo Alku, Minna Huotilainen: Foneemiraja-efekti suomen kielen kvantiteettikategorioiden välillä. Fonetiikan päivät 2004, pp. 17-22, 2004.
Paavo Alku: Voice production research at the Acoustics Laboratory of the Helsinki University of Technology, Festive seminar of the Department of Speech Communication and Voice Research at the University of Tampere 4.11.2004, pp. 66-72, 2005, University of Tampere, Dept. of Speech Communication and Voice Research, Report 3/2005.
Elina Pihko, Annika Mickos, Teija Kujala, Martin Westman, Paavo Alku, Annika Pihlgren, Roger Byring, Marit Korkman: Ryhmäkuntoutus vahvistaa kielihäiriöisten lasten aivovasteita, Duodecim 2006, Vol. 122, ss. 1421-1422.