Tomi H. Kinnunen

Professor, PhD, PhLic, Docent

Professor of speech technology, specialized in speaker recognition and security (spoofing attacks and countermeasures; co-founder of ASVspoof challenge series).

Computational Speech Group
School of Computing
University of Eastern Finland

P.O. Box 111, FI-80101 Joensuu, FINLAND

E-mail: firstname dot lastname at uef dot fi
Google Scholar profile
LinkedIn

NEWS (09/2023) !



PROGRAM CODE:



DATA AND CHALLENGES


PUBLICATIONS:

International refereed journal articles:
  1. T. Kinnunen, K.A. Lee, H. Tak, N. Evans, A. Nautsch, "t-EER: Parameter-Free Tandem Evaluation of Countermeasures and Biometric Comparators", to appear in IEEE Transactions on Pattern Analysis and Machine Intelligence.
  2. X. Liu, X. Wang, M. Sahidullah, J. Patino, H. Delgado, T. Kinnunen, M. Todisco, J. Yamagishi, N. Evans, A. Nautsch, K.A. Lee, "ASVspoof 2021: Towards Spoofed and Deepfake Speech Detection in the Wild", IEEE/ACM Transactions on Audio, Speech, and Language Processing, 31: 2507--2522, 2023. [Arxiv link]
  3. L. Tavi, T. Kinnunen, Rosa González Hautamäki,"Improving Speaker De-Identification with Functional Data Analysis of F0 Trajectories," Speech Communication, 140: 1-10, 2022.
  4. A. Kanervisto, V. Hautamäki, T. Kinnunen and J. Yamagishi, "Optimizing Tandem Speaker Verification and Anti-Spoofing Systems," in IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 30, pp. 477-488, 2022 [Arxiv link]
  5. X. Liu, M. Sahidullah, T. Kinnunen, “Optimizing Multi-Taper Features for Deep Speaker Verification”, IEEE Signal Processing Letters, 28: 2187--2191, October 2021. [arxiv]
  6. K.A. Lee, V. Vestman, and T. Kinnunen, “ASVtorch Toolkit: Speaker Verification with Deep Neural Networks”, SoftwareX, Volume 14, 100697, June 2021 [link]  
  7. A. Nautsch, X. Wang, N. Evans, T. Kinnunen, V. Vestman, M. Todisco, H. Delgado, M. Sahidullah, J. Yamagishi, K.A. Lee, “ASVspoof 2019: Spoofing Countermeasures for the Detection of Synthesized, Converted and Replayed Speech”, IEEE Transactions on Biometrics, Behavior, and Identity Science, 3(2): 252--265, April 2021 [arxiv link]
  8. T. Kinnunen, H. Delgado, N. Evans, K.A. Lee, V. Vestman, A. Nautsch, M. Todisco, X. Wang, M. Sahidullah, J. Yamagishi, D.A. Reynolds, “Tandem Assessment of Spoofing Countermeasures and Automatic Speaker Verification: Fundamentals”, IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 28, pp. 2195-2210, 2020 [PDF]
  9. X. Wang, J. Yamagishi, M. Todisco, H. Delgado, A. Nautsch, N. Evans, M. Sahidullah, V. Vestman, T. Kinnunen, K.A. Lee, L. Juvela, P. Alku, Y.-H. Peng, H.-T. Hwang, Y. Tsao, H.-M. Wang, S. L. Maguer, M. Becker, F. Henderson, R. Clark, Y. Zhang, Q. Wang, Y. Jia, K. Onuma, K. Mushika, T. Kaneda, Y. Jiang, L.-J. Liu, Y.-C. Wu, W.-C. Huang, T. Toda, K. Tanaka, H. Kameoka, I. Steiner, D. Matrouf, J. -F. Bonastre, A. Govender, S. Ronanki, J.-X. Zhang, Z.-H. Ling, “ASVspoof 2019: a large-scale public database of synthetic, converted and replayed speech”, Computer Speech & Language, 64, November 2020 [arxiv link]
  10. B. Chettri, T. Kinnunen, E. Benetos, “Deep Generative Variational Autoencoding for Replay Spoof Detection in Automatic Speaker Verification”, Computer Speech & Language, 63: 1--18, September 2020 [PDF]
  11. A. Sholokhov, T. Kinnunen, V. Vestman, K.A. Lee, Voice Biometrics Security: Extrapolating False Alarm Rate via Hierarchical Bayesian Modeling of Speaker Verification Scores”, Computer Speech & Language, 60: 1--19, March 2020. [PDF]
  12. A. Kato and T. Kinnunen, Statistical Regression Models for Noise Robust F0 Estimation Using Recurrent Deep Neural Networks”, IEEE/ACM Transactions on Audio, Speech, and Language Processing, 27(2):2336--2349, December 2019 [PDF]
  13. R. González Hautamäki, V. Hautamäki, T. Kinnunen, On Limits of Automatic Speaker Verification: Explaining Degraded Recognizer Score Through Acoustic Changes Resulting from Voice Disguise”, Journal of the Acoustic Society of America, 146(1): 693--704, July 2019 [PDF]
  14. V. Vestman, T. Kinnunen, R. Gonzalez Hautamäki, M. Sahidullah, “Voice Mimicry Attacks Assisted by Automatic Speaker Verification”, Computer Speech & Language, 59: 36--54, January 2020 [PDF]
  15. E. Jokinen, R. Saeidi, T. Kinnunen, P. Alku, “Vocal Effort Compensation for MFCC Feature Extraction in a Shouted Versus Normal Speaker Recognition Task”, Computer Speech & Language, 53: 1--11, January 2019 [PDF] [doi]
  16. V. Vestman, D. Gowda, M. Sahidullah, P. Alku, and T. Kinnunen, “Speaker Recognition from Whispered Speech: a Tutorial Survey and an Application of Time-Varying Linear Prediction”, Speech Communication, 99: 62--79, May 2018 [PDF]
  17. M. Sahidullah, D. Thomsen, R. Gonzalez Hautamäki, T. Kinnunen, Z.-H. Tan, R. Parts, and M. Pitkänen, Robust Voice Liveness Detection and Speaker Verification Using Throat Microphones, IEEE/ACM Transactions on Audio, Speech, and Language Processing, 26(1): 44--56, January 2018 [PDF]
  18. A. Sholokhov, M. Sahidullah, T. Kinnunen, “Semi-Supervised Speech Activity Detection with an Application to Automatic Speaker Verification, Computer Speech & Language, 47: 132--156, January 2018 [PDF] [Program code]
  19. R. González Hautamäki, M. Sahidullah, V. Hautamäki, and Tomi Kinnunen, Acoustical and Perceptual Study of Voice Disguise by Age Modification in Speaker Verification, Speech Communication, 95: 1--15, 2017 [PDF]
  20. Z. Wu, J. Yamagishi, T. Kinnunen, C. Hanilçi, M. Sahidullah, A. Sizov, N. Evans, M. Todisco, H. Delgado, “ASVspoof: the Automatic Speaker Verification Spoofing and Countermeasures Challenge”, IEEE J. on Selected Topics in Signal Processing, 11(4): 588---604, June 2017 [PDF]
  21. A. Sizov, K. A. Lee, T. Kinnunen, “Direct Optimization of the Detection Cost for i-Vector based Spoken Language Recognition, IEEE/ACM Transactions on Audio, Speech and Language Processing, 25(3): 588---597, March 2017 [PDF]
  22. C. Hanilçi, T. Kinnunen, M. Sahidullah, A. Sizov, “Spoofing Detection Goes Noisy: An Analysis of Synthetic Speech Detection in the Presence of Additive Noise”, Speech Communication, 85: 83---97, December 2016 [PDF]
  23. M. Sahidullah and T. Kinnunen, Local Spectral Variability Features for Speaker Verification”, Digital Signal Processing, 50: 1--11, March 2016 [PDF] [Program code]
  24. H. Behravan, V. Hautamäki, S. M. Siniscalchi, T. Kinnunen, C.-H. Lee,  “i-Vector Modeling of Speech Attributes for Automatic Foreign Accent Recognition”, IEEE/ACM Transactions on Audio, Speech and Language Processing, 24(1): 29---41, January 2016 [PDF]
  25. R. Gonzalez Hautamäki, T. Kinnunen, V. Hautamäki and A.-M. Laukkanen, “Automatic versus Human Speaker Verification: the Case of Voice Mimicry”, Speech Communication, 72: 13--31, September 2015 [PDF]
  26. A. Sizov, E. Khoury, T. Kinnunen, Z. Wu and S. Marcel, Joint Speaker Verification and Anti-Spoofing in the i-Vector Space”, IEEE Transactions on Information Forensics and Security, 10(4): 821--832, April 2015 [PDF] [i-vector data (hosted at IDIAP)] [Code (hosted at IDIAP)]
  27. Z. Wu, N. Evans, T. Kinnunen, J. Yamagishi, F. Alegre, H. Li, “Spoofing and Countermeasures for Speaker Verification: a Survey”, Speech Communication, 66: 130--153, February 2015 [PDF]
  28. H. Behravan, V. Hautamäki, T. Kinnunen, “Factors Affecting i-Vector Based Foreign Accent Recognition: a Case Study in Spoken Finnish”, Speech Communication, 66: 118--129, February 2015 [PDF]
  29. C. Hanilçi and T. Kinnunen, “Source Cell-Phone Recognition from Recorded Speech Using Non-Speech Segments”, Digital Signal Processing, 35: 75--85, December 2014 [PDF]
  30. J. Pohjalainen, C. Hanilçi, T. Kinnunen, P. Alku, Mixture Linear Prediction in Speaker Verification Under Vocal Effort Mismatch”, IEEE Signal Processing Letters, 21(12): 1516--1520, December 2014 [PDF] [MATLAB CODE]
  31. P. Rajan, A. Afanasyev, V. Hautamäki, T. Kinnunen, From Single to Multiple Enrollment i-Vectors: Practical PLDA Scoring Variants for Speaker Verification, Digital Signal Processing, 31: 93--10, August 2014 [PDF]
  32. V. Hautamäki, T. Kinnunen, F. Sedlak, K.A. Lee, B. Ma, H. Li, “Sparse Classifier Fusion for Speaker Verification”, IEEE Transactions on Audio, Speech and Language Processing, 21(8): 1622--1631, August 2013 [PDF]
  33. O. Schleusing, T. Kinnunen, B. Story, J.-M. Vesin, “Joint Source-Filter Optimization for Accurate Vocal Tract Estimation Using Differential Evolution”, IEEE Transactions on Audio, Speech and Language Processing, 21(8): 1560--1572, August 2013 [PDF]
  34. Md. J. Alam, T. Kinnunen, P. Kenny, P. Ouellet, D. O'Shaughnessy, “Multitaper MFCC and PLP Features for Speaker Verification Using i-Vectors”, Speech Communication, 55(2): 237--251, February 2013  [PDF] [ ISCA Award for the best paper published in Speech Communication (2013 - 2015) ]
  35. Z. Wu, T. Kinnunen, E.S. Chng, H. Li, “Mixture of Factor Analyzers Using Priors from Non-Parallel Speech for Voice Conversion”, IEEE Signal Processing Letters, 19(12): 914--917, December 2012 [PDF]
  36. P. Mowlaee, R. Saeidi, M.G. Christensen, Z.-H. Tan, T. Kinnunen, P. Fränti, S.H. Jensen, “A Joint Approach for Single-Channel Speaker Identification and Speech Separation”, IEEE Transactions on Audio, Speech and Language Processing, 20(9): 2586--2601, November 2012 [PDF] [supplementary audio material].
  37. T. Kinnunen, R. Saeidi, F. Sedlak, K.A. Lee, J. Sandberg, M. Hansson-Sandsten, H. Li,  “Low-Variance Multitaper MFCC Features: a Case Study in Robust Speaker Verification”, IEEE Transactions on Audio, Speech and Language Processing, 20(7): 1990--2001, September 2012 [PDF][Multitaper Matlab code].
  38. C. Hanilçi, T. Kinnunen, F. Ertas, R. Saeidi, J. Pohjalainen, P. Alku, “Regularized All-Pole Models for Speaker Verification Under Noisy Environments”, IEEE Signal Processing Letters 19(3), 163--166, March 2012 [PDF]. Find also extended analysis and the RLP program codes from Odyssey 2012 version.
  39. T. Kinnunen, I. Sidoroff, M. Tuononen, P. Fränti, “Comparison of Clustering Methods: a Case Study of Text-Independent Speaker Modeling”, Pattern Recognition Letters32(13): 1604--1617, October 2011 [PDF]
  40. K.A. Lee, C.H. You, H. Li, T. Kinnunen, K.C. Sim, “Using Discrete Probabilities with Bhattacharyya Measure for SVM-based Speaker Verification”, IEEE Transactions on Audio, Speech and Language Processing, 19(4): 861--870, May 2011 [PDF].
  41. R. Saeidi, J. Pohjalainen, T. Kinnunen, P. Alku, “Temporally Weighted Linear Prediction Features for Tackling Additive Noise in Speaker Verification”, IEEE Signal Processing Letters, 17(6), pp. 599--602, June 2010 [PDF].
  42. J. Sandberg, M. Hansson-Sandsten, T. Kinnunen, R. Saeidi, P. Flandrin, P. Borgnat, “Multitaper Estimation of Frequency-Warped Cepstra with Application to Speaker Verification”, IEEE Signal Processing Letters, 17(4): 343--346, April 2010. [PDF][Multitaper Matlab code]
  43. T. Kinnunen and H. Li, An Overview of Text-Independent Speaker Recognition: from Features to Supervectors”, Speech Communication 52(1): 12--40, January 2010 [PDF].
  44. T. Kinnunen, J. Saastamoinen, V. Hautamäki, M. Vinni, P. Fränti, Comparative Evaluation of Maximum a Posteriori Vector Quantization and Gaussian Mixture Models in Speaker Verification”, Pattern Recognition Letters 30(4): 341--347, March 2009. [PDF]
  45. V. Hautamäki, T. Kinnunen and P. Fränti, Text-Independent Speaker Recognition Using Graph Matching, Pattern Recognition Letters, 29(9): 1427--1432, 2008. [PDF]
  46. V. Hautamäki,  T. Kinnunen, I. Kärkkäinen, M. Tuononen, J. Saastamoinen, P. Fränti, “Maximum a Posteriori Estimation of the Centroid Model for Speaker Verification, IEEE Signal Processing Letters, 15: 162--165, 2008. [PDF]
  47. T. Kinnunen, E. Karpov, P. Fränti, Real-Time Speaker Identification and Verification, IEEE Transactions on Audio, Speech and Language Processing, 14(1): 277--288, Jan 2006. [PDF
International book chapters:
  1. M. Sahidullah, H. Delgado, M. Todisco, A. Nautsch, X. Wang, T. Kinnunen, N. Evans, J. Yamagishi, K.A. Lee (2023), "Introduction to Voice Presentation Attack Detection and Recent Advances" In: Marcel, S., Fierrez, J., Evans, N. (eds) Handbook of Biometric Anti-Spoofing. Advances in Computer Vision and Pattern Recognition. Springer, Singapore. https://doi.org/10.1007/978-981-19-5288-3_13
  2. M. Sahidullah, H. Delgado, M. Todisco, T. Kinnunen, N. Evans, J. Yamagishi, K.A. Lee, “Introduction to Voice Presentation Attack Detection and Recent Advances”, book chapter in Handbook of Biometric Anti-Spoofing: Presentation Attack Detection, Springer, S. Marcel, M.S. Nixon, J. Fierrez, N. Evans (Eds.), Springer, 2018 [PDF]
  3. N. Evans, T. Kinnunen, J. Yamagishi, Z. Wu, F. Alegre and P. De Leon, “Speaker recognition anti-spoofing”, book chapter in Handbook of Biometric Anti-spoofing, Springer, S. Marcel, S. Li and M. Nixon, Eds., 2014.
  4. N. Evans, F. Alegre, Z. Wu and T. Kinnunen, “Anti-spoofing: voice conversion”, book chapter in Encyclopedia of Biometrics, 2nd Edition, Springer US, Stan Z. Li and Anil K. Jain, Eds, 2014.
  5. F. Alegre, N. Evans, T. Kinnunen, Z. Wu, and J. Yamagishi, “Anti-spoofing: voice databases”, book chapter in Encyclopedia of Biometrics, 2nd Edition, Springer US, Stan Z. Li and Anil K. Jain, Eds, 2014.
Submitted pre-prints:
  1. X. Liu, M. Sahidullah, T. Kinnunen, "Distilling Multi-Level X-vector Knowledge for Small-footprint Speaker Verification" [arxiv]
  2. J.-w. Jung, H. Tak, H.-j. Shim, H.-S. Heo, B.-J. Lee, S.-W. Chung, H.-G. Kang, H.-J. Yu, N. Evans, T. Kinnunen, "SASV Challenge 2022: A Spoofing Aware Speaker Verification Challenge Evaluation Plan" [arxiv]
Internationally refereed conference articles:
  1. H.-j. Shim, R. Gonzalez Hautamäki, M. Sahidullah, T. Kinnunen, "How to Construct Perfect and Worse-than-Coin-Flip Spoofing Countermeasures: A Word of Warning on Shortcut Learning", Proc. INTERSPEECH 2023, 785-789, doi: 10.21437/Interspeech.2023-1901.
  2. X. Liu, M. Sahidullah, K.A. Lee, T. Kinnunen, "Speaker-Aware Anti-spoofing", Proc. INTERSPEECH 2023, 2498-2502, doi: 10.21437/Interspeech.2023-1323
  3. V.P. Singh, M. Sahidullah, T. Kinnunen, "Speaker Verification Across Ages: Investigating Deep Speaker Embedding Sensitivity to Age Mismatch in Enrollment and Test Speech", Proc. INTERSPEECH 2023, 1948-1952, doi: 10.21437/Interspeech.2023-2052
  4. H-j. Shim, J-w. Jung, T. Kinnunen, "Multi-Dataset Co-Training with Sharpness-Aware Optimization for Audio Anti-spoofing", Proc. INTERSPEECH 2023, 3804-3808, doi: 10.21437/Interspeech.2023-1910
  5. S.H. Mun, H.-j. Shim, H. Tak, X. Wang, X. Liu, M. Sahidullah, M. Jeong, M.H. Han, M. Todisco, K.A. Lee, J. Yamagishi, N. Evans, T. Kinnunen, N.S. Kim, J-w. Jung, "Towards Single Integrated Spoofing-aware Speaker Verification Embeddings", Proc. INTERSPEECH 2023, 3989-3993, doi: 10.21437/Interspeech.2023-1402
  6. M. Anderson, T. Kinnunen, N. Harte, "Learnable Frontends That Do Not Learn: Quantifying Sensitivity To Filterbank Initialisation," ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Rhodes Island, Greece, 2023, pp. 1-5, doi: 10.1109/ICASSP49357.2023.10095474 .[arxiv]
  7. R. Bhatia and T. Kinnunen, "An Initial study on Birdsong Re-synthesis Using Neural Vocoders", Proc. 24th International Conference on Speech and Computer (SPECOM 2022), pp. 64–74 [arxiv]
  8. J.-w. Jung, H. Tak, H.-j. Shim, H.-S. Heo, B.-J. Lee, S.-W. Chung, H.-J. Yu, N. Evans, T. Kinnunen, "SASV 2022: The First Spoofing-Aware Speaker Verification Challenge", Proc. Interspeech 2022, pp 2893--2897, September 2022. [PDF]
  9. A. Sholokhov, X. Liu, M. Sahidullah, T. Kinnunen, "Baselines and Protocols for Household Speaker Recognition", Proc. The Speaker and Language Recognition Workshop (Odyssey 2022), pp. 185--192 [ISCA archive] [arxiv] [Github]
  10. S. Ghimire, T. Kinnunen, R. González Hautamäki, "Gamified Speaker Comparison by Listening",  Proc. The Speaker and Language Recognition Workshop (Odyssey 2022), pp. 421--427, 2022 [ISCA archive] [arxiv]
  11. X. Liu, M. Sahidullah, T. Kinnunen, "Spoofing-Aware Speaker Verification with Unsupervised Domain Adaptation", Proc. The Speaker and Language Recognition Workshop (Odyssey 2022), pp. 85--91, 2022 [ISCA archive] [arxiv]  
  12. H.-j. Shim, H. Tak, X. Liu, H.-S. Heo, J.-W. Jung, J.S. Chung, S.-W. Chung, H.-J. Yu, B.-J. Lee, M. Todisco, H. Delgado, K.A. Lee, M. Sahidullah, T. Kinnunen, N. Evans, "Baseline Systems for the First Spoofing-Aware Speaker Verification Challenge: Score and Embedding Fusion", Proc. The Speaker and Language Recognition Workshop (Odyssey 2022), pp. 330--337, 2022 [ISCA Archive] [arxiv]
  13. X. Liu, M. Sahidullah, T. Kinnunen, "Learnable Nonlinear Compression for Robust Speaker Verification", IEEE ICASSP 2022, pp. 7962--7966, May 2022, Singapore [arxiv]
  14. K. Hechmi, T.N. Trong, V. Hautamäki, T. Kinnunen, ”VoxCeleb Enrichment for Age and Gender Recognition”,  IEEE Automatic Speech Recognition and Understanding workshop (ASRU), pp. 687--693, December 2021 [arxiv] [Github]
  15. X. Liu, M. Sahidullah, T. Kinnunen, “Optimized Power Normalized Cepstral Coefficients towards Robust Deep Speaker Verification”, IEEE Automatic Speech Recognition and Understanding workshop (ASRU), pp. 185--190, December 2021. [arxiv]
  16. X. Liu, M. Sahidullah, T. Kinnunen, “Parameterized Channel Normalization for Far-field Deep Speaker Verification”,IEEE Automatic Speech Recognition and Understanding workshop (ASRU), pp. 1132--1138, December 2021. [arxiv]
  17. L. Tavi, T. Kinnunen, E. Meister, R González-Hautamäki, A. Malmi, ”Articulation During Voice Disguise: A Pilot Study”, Proc. Speech and Computer (SPECOM’21), Springer LNAI 12997, pp. 680–691, St. Petersburg, Russia, September 2021. [PDF]
  18. J.-F. Bonastre, H. Delgado, N. Evans, T. Kinnunen, K.A. Lee, X. Liu, A. Nautsch, G. Noé‬, ‪J. Patino, M. Sahidullah, B.M.L. Srivastava, M. Todisco, N. Tomashenko, E. Vincent, X. Wang, J. Yamagishi (2021), "Benchmarking and challenges in security and privacy for voice biometrics. Proc. 2021 ISCA Symposium on Security and Privacy in Speech Communication", 52-56, doi: 10.21437/SPSC.2021-11 [arxiv]
  19. T. Kinnunen, A. Nautsch, M. Sahidullah, N. Evans, X. Wang, M. Todisco, H. Delgado, J. Yamagishi, K.A. Lee, “Visualizing Classifier Adjacency Relations: A Case Study in Speaker Verification and Voice Anti-Spoofing”, Proc. Interspeech, 4299-4303, Brno, Czech Republic, 2021. [arxiv link]
  20. B. Chettri, R. González Hautamäki, M. Sahidullah, T. Kinnunen, “Data Quality as Predictor of Voice Anti-Spoofing Generalization”, Proc. Interspeech, 1659-1663, Brno, Czech Republic, 2021. [arxiv link]
  21. X. Liu, M. Sahidullah, T. Kinnunen, Learnable MFCCs for Speaker Verification”, Proc. IEEE Int. Symp. Circuits and Systems (ISCAS 2021), Daegu, Korea, May 2021 [arxiv link]
  22. M. Sahidullah, A.K. Sarkar, V. Vestman, X. Liu, R. Serizel, T. Kinnunen, Z.-H. Tan, E. Vincent, “UIAI System for Short-Duration Speaker Verification Challenge 2020”, Proc. IEEE Spoken Language Technology Workshop (SLT 2021), Shenzhen, China, January 2021 [arxiv link]
  23. R. K. Das, T. Kinnunen, W.-C. Huang, Z. Ling, J. Yamagishi, Y. Zhao, X. Tian, T. Toda, “Predictions of Subjective Ratings and Spoofing Assessments of Voice Conversion Challenge 2020 Submissions”, Proc. Joint Workshop for the Blizzard Challenge and Voice Conversion Challenge, pp. 99--120, 2020. [arxiv link]
  24. Y. Zhao, W.-C. Huang, X. Tian, J. Yamagishi, R.K. Das, T. Kinnunen, Z. Ling, T. Toda, “Voice Conversion Challenge 2020: Intra-lingual semi-parallel and cross-lingual voice conversion”, Proc. Joint Workshop for the Blizzard Challenge and Voice Conversion Challenge, pp. 80--98, 2020. [arxiv link]
  25. A. Sholokhov, T. Kinnunen, V. Vestman, K.A. Lee, “Extrapolating False Alarm Rates in Automatic Speaker Verification”, Proc. Interspeech 2020, pp. 4218--4222, Shanghai, China, October 2020 [PDF]
  26. R. K. Das, X. Tian, T. Kinnunen, H. Li, “The Attacker's Perspective on Automatic Speaker Verification: An Overview”, Proc. Interspeech 2020, pp. 4213--4217, Shanghai, China, October 2020 [PDF]
  27. R. González Hautamäki and T. Kinnunen, “Why Did the x-Vector System Miss a Target Speaker? Impact of Acoustic Mismatch Upon Target Score on VoxCeleb Data”, Proc. Interspeech 2020, pp. 4313--4317, Shanghai, China, October 2020 [PDF]
  28. X. Liu, M. Sahidullah, T. Kinnunen, “A Comparative Re-Assessment of Feature Extractors for Deep Speaker Embeddings”, Proc. Interspeech 2020, pp. 3221--3225, Shanghai, China, October 2020 [PDF]
  29. V. Vestman, K.A. Lee, T. Kinnunen, “Neural i-Vectors”, Proc. Odyssey 2020, pp. 67--74, Tokyo, Japan, Nov. 2020 [PDF]
  30. B. Chettri, T. Kinnunen, E. Benetos, “Subband modeling for Spoofing Detection in Automatic Speaker Verification”, Proc. Odyssey 2020, pp. 341--348, Tokyo, Japan, Nov. 2020 [PDF]
  31. A. Kanervisto, V. Hautamäki, T. Kinnunen, J. Yamagishi, An Initial Investigation on Optimizing Tandem Speaker Verification and Countermeasure Systems Using Reinforcement Learning”, Proc. Odyssey 2020, pp. 151--158, Tokyo, Japan, Nov. 2020 [PDF]
  32. R. González Hautamäki and T. Kinnunen, “Towards Controlling False Alarm -- Miss Trade-Off in Perceptual Speaker Comparison via Non-Neutral Listening Task Framing”, Proc. IEEE Automatic Speech Recognition and Understanding Workshop (ASRU), pp. 749--756, December 2019, Singapore. [PDF]
  33. V. Vestman, K. A. Lee, T. Kinnunen, T. Koshinaka, Unleashing the Unused Potential of I-Vectors Enabled by GPU Acceleration, Proc. Interspeech 2019, pp. 351--355, Graz, Austria, September 2019 [PDF]
  34. M. Todisco, X. Wang, V. Vestman, M. Sahidullah, H. Delgado, A. Nautsch, J. Yamagishi, N. Evans, T. Kinnunen, K. A. Lee, ASVspoof 2019: Future Horizons in Spoofed and Fake Audio Detection, Proc. Interspeech 2019, pp. 1008--1012, Graz, Austria, September 2019 [PDF]
  35. K. A. Lee, V. Hautamäki, T. Kinnunen, H. Yamamoto, K. Okabe, V. Vestman, J. Huang, G. Ding, H. Sun, A. Larcher, R. K. Das, H. Li, M. Rouvier, P. Bousquet, W. Rao, Q. Wang, C. Zhang, F. Bahmaninezhad, H. Delgado, M. Todisco, Q. Wang, L. Guo, T. Koshinaka, J. Zhang, K. Shinoda, T. N. Trong, M. Sahidullah, F. Lu, Y. Tang, M. Tu, K. K. Teh, H. D. Tran, K. K. George, I. Kukanov, F. Desnous, J. Yang, E. Yılmaz, L. Xu, J. Bonastre, C. Xu, Z. H. Lim, E. S. Chng, S. Ranjan, J. H. L. Hansen, J. Patino, N. Evans, I4U Submission to NIST SRE 2018: Leveraging from a Decade of Shared Experiences, Proc. Interspeech 2019, pp. 1497--1501, Graz, Austria, September 2019 [PDF]
  36. X. Wu, E. Granger, T. Kinnunen, X. Feng, A. Hadid, “Audio-Visual Kinship Verification in the Wild”, Proc. 12th IAPR International Conference On Biometrics (ICB 2019), Crete, Greece, June 2019. [PDF]
  37. T. Kinnunen, R. González Hautamäki, V. Vestman, M. Sahidullah, “Can We Use Speaker Recognition Technology to Attack Itself? Enhancing Mimicry Attacks Using Automatic Target Speaker Selection”, Proc. IEEE ICASSP, pp. 6146--6150, Brighton, UK, May 2019 [PDF] (Please find extended results/analyses in Computer Speech & Language article here)
  38. V. Vestman, B. Soomro, A. Kanervisto, V. Hautamäki, T. Kinnunen, Who Do I sound Like? Showcasing Speaker Recognition Technology by YouTube Voice Search”, Proc. IEEE ICASSP, pp. 5781--5785, Brighton, UK, May 2019 [PDF]
  39. F. Fang, J. Yamagishi, I. Echizen, M. Sahidullah, T. Kinnunen, Transforming Acoustic Characteristics to Deceive Playback Spoofing Countermeasures of Speaker Verification Systems”, Proc. IEEE Int. Workshop on Information Forensics and Security (WIFS) 2018, Hong Kong, China, 2018 [PDF]
  40. M. Todisco, H. Delgado, K.A. Lee, M. Sahidullah, N. Evans, T. Kinnunen, J. Yamagishi, “Integrated Presentation Attack Detection and Automatic Speaker Verification: Common Features and Gaussian Back-end Fusion”, Proc. Interspeech 2018, pp. 77--81, Hyderabad, India, September 2018 [PDF].
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  45. J. Lorenzo-Trueba, J. Yamagishi, T. Toda, D. Saito, F. Villavicencio, T. Kinnunen, Z. Ling, “The Voice Conversion Challenge 2018: Promoting Development of Parallel and Nonparallel Methods”, Proc. Odyssey 2018, pp. 195--202, Les Sables d'Olonne, France, June 2018 [PDF]
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  125. P. Fränti, J. Saastamoinen, I. Kärkkäinen, T. Kinnunen, V. Hautamäki, I. Sidoroff, “Developing Speaker Recognition System:  from Prototype to Practical Application”,  Int. Conf. Forensic Applications and Techniques in Telecommunications, Information and Multimedia (e-Forensics'09), Adelaide, Australia, LNICST vol. 8, 101-114, January 2009.
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  127. T. Kinnunen, K.A. Lee and H. Li, Dimension Reduction of the Modulation Spectrogram for Speaker Verification, Proc. Odyssey: The Speaker and Language Recognition Workshop, Stellenbosch, South Africa, January 2008. [PDF]
  128. T. Kinnunen, E. Chernenko, M. Tuononen, P. Fränti, H. Li, “Voice Activity Detection Using MFCC Features and Support Vector Machine”, Proc. Speech and Computer 2007 (SPECOM), vol. 2, 556-561, Moscow, Russia, October 2007. [PDF]
  129. K.A. Lee, C. You, H. Li, T. Kinnunen, ”A GMM-based Probabilistic Sequence Kernel for Speaker Verification”, Proc. Interspeech 2007, p. 294-297, Antwerp, Belgium, August 2007.[PDF]
  130. T. Kinnunen, B. Zhang, J. Zhu, Y. Wang, ”Speaker Verification with Adaptive Spectral Subband Centroids”, Proc. Int. Conf. Biometrics, pp. 58-66, Lecture Notes in Computer Science 4642, Seoul, Korea, August 2007. [PDF]
  131. R. Saeidi, R.S. Mohammadi, R. Rodman, T. Kinnunen, "A New Segmentation Algorithm Combined with Transient Frames Power for Text-Independent Speaker Verification", Proc. IEEE Int. Conf. Acoustics, Speech and Signal Processing (ICASSP), Vol. 4, pp. 305-308, Honolulu, Hawaii, April 2007. [PDF]
  132. T. Kinnunen, C.W.E. Koh, L. Wang, H. Li, and E.S. Chng, "Temporal Discrete Cosine Transform: Towards Longer Term Temporal Features for Speaker Verification", Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP'2006), LNAI 4274, pp. 547-558, Singapore, December 2006.[PDF]
  133. T. Kinnunen, V. Hautamäki, P. Fränti, “On the Use of Long-Term Average Spectrum in Automatic Speaker Recognition” , Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP'2006), pp. 559-567, Singapore, December 2006. [PDF]
  134. K.A. Lee, H. Sun, R. Tong, B. Ma, M. Dong, C. You, D. Zhu, C.W.E. Koh, L. Wang, T.Kinnunen, E.S. Chng and H. Li, "The IIR Submission to CSLP 2006 Speaker Recognition Evaluation", Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP'2006), LNAI 4274, pp. 494-505, Singapore, December 2006. [PDF]
  135. R. Tong, B. Ma, K.A. Lee, C. You, D. Zhou, T. Kinnunen, H. Sun, M. Dong, E.S. Chng, H. Li, The IIR NIST 2006 Speaker Recognition System: Fusion of Acoustic and Tokenization Features”, Proc. 5th International Symposium on Chinese Spoken Language Processing (ISCSLP'2006), pp. 566-577, Singapore, December 2006. [PDF]
  136. T. Kinnunen, "Joint Acoustic-Modulation Frequency for Speaker Recognition", Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP2006), Vol. I, pp. 665-668, May 14-19, 2006, Toulouse, France. [PDF]
  137. T. Kinnunen, R. Gonzalez-Hautamäki, Long-Term F0 Modeling for Text-Independent Speaker Recognition, Proc. Int. Conf. on Speech and Computer (SPECOM'2005), pp. 567-570, Patras, Greece, October 2005. [PDF]
  138. J. Saastamoinen, Z. Fiedler, T. Kinnunen and P. Fränti, "On factors affecting MFCC-based speaker recognition accuracy", Proc. Int. Conf. on Speech and Computer (SPECOM'05), pp. 503-506, Patras, Greece, October 2005 [PDF].
  139.  H. Gupta, V. Hautamäki, T. Kinnunen and P. Fränti, "Field evaluation of text-dependent speaker recognition in an access control application", Proc. Int. Conf. on Speech and Computer (SPECOM'05), pp. 551-554, Patras, Greece, October 2005. [PDF]
  140. O. Grebenskaya, T. Kinnunen, P. Fränti, “Speaker Clustering in Speech Recognition”, Proc. 2005 Finnish Signal Processing Symposium (FINSIG’05), pp. 46-49, Kuopio, Finland, August 25, 2005. [PDF]
  141. V. Hautamäki, S. Cherednichenko, I. Kärkkäinen, T. Kinnunen, P. Fränti, “Improving K-Means by Outlier Removal”, Proc. 14th Scandinavian Conference on Image Analysis (SCIA 2005), Lecture Notes in Computer Science 3540, pp. 978-987, Joensuu, Finland, June 19-22, 2005.
  142. R. Bednarik, T. Kinnunen, A. Mihaila, P. Fränti, “Eye-Movements as a Biometric“, Proc. 14th Scandinavian Conference on Image Analysis (SCIA 2005), Lecture Notes in Computer Science 3540, pp. 780-789, Joensuu, Finland, June 19-22, 2005. [PDF]
  143. T. Niemi-Laitinen, J. Saastamoinen, T. Kinnunen, P Fränti, ”Applying MFCC-Based Automatic Speaker Recognition to GSM and Forensic Data“, Proc. Human Language Technologies (HLT’2005), p. 317-322, Tallinn, Estonia, April 4-5, 2005 [PDF]
  144. T. Kinnunen, E. Karpov, P. Fränti, “Efficient Online Cohort Selection Method for Speaker Verification”, Proc. 8th Int. Conf. on Spoken Language Processing (ICSLP 2004), Vol. III, pp. 2401-2402, Jeju Island, Korea, Oct. 4-8, 2004 [PDF].
  145. T. Kinnunen, E. Karpov, P. Fränti, Real-Time Speaker Identification, Proc. 8th Int. Conf. on Spoken Language Processing (ICSLP'2004), Vol. III, pp. 1805-1808, Jeju Island, Korea, Oct. 4-8, 2004. [PDF]
  146. T. Kinnunen, V. Hautamäki, P. Fränti, Fusion of Spectral Feature Sets for Accurate Speaker IdentificationProc. 9th International Conference Speech and Computer (SPECOM'2004), pp. 361-365, St. Petersburg, Russia, September 20-22, 2004. [PDF]
  147. E. Karpov, T. Kinnunen, P. Fränti, "Symmetric Distortion Measure for Speaker Recognition",  Proc. 9th International Conference Speech and Computer (SPECOM'2004), pp. 366-370, St. Petersburg, Russia, September 20-22, 2004. [PDF]
  148. T. Kinnunen, V. Hautamäki, P. Fränti, "On the Fusion of Dissimilarity-Based Classifiers for Speaker Identification", Proc. 8th European Conference on Speech Communiation and Technology (Eurospeech 2003), pp. 2641-2644, Geneva, Switzerland, September 1-4, 2003. [PDF]
  149. T. Kinnunen, E. Karpov, P. Fränti: "A Speaker Pruning Algorithm for Real-Time Speaker Identification", Proc. 4th International Conference on  Audio- and Video-Based Biometric Person Authentication (AVBPA 2003), pp. 639-646, Guilford, UK, June 9-11, 2003. [PDF]
  150. T. Kinnunen: "Designing a Speaker-Discriminative Adaptive Filter Bank for Speaker Recognition", Proc. 7th International Conference on Spoken Language Processing (ICSLP 2002), pp. 2325-2328, Denver, Colorado, USA, September 16-20, 2002. [PDF]
  151. T. Kinnunen, I. Kärkkäinen: "Class-Discriminative Weighted Distortion Measure for VQ-Based Speaker Identification", Proc. Joint IAPR International Workshop on Statistical Pattern Recognition (S+SPR 2002), pp. 681-688, Windsor, Canada, August 6-9, 2002. [PDF]
  152. T. Kinnunen, I. Kärkkäinen, P. Fränti: "Is Speech Data Clustered? - Statistical Analysis of Cepstral Features", Proc. 7th European Conference on Speech Communication and Technology (Eurospeech 2001)), vol. 4, pp. 2627-2630, Aalborg, Denmark, September 3-7, 2001. [PDF]
  153. T. Kinnunen, P. Fränti: "Speaker Discriminative Weighting Method for VQ-Based Speaker Identification", Proc. 3rd International Conference on audio-and video-based biometric person authentication (AVBPA 2001), pp. 150-156, Halmstad, Sweden, June 6-8, 2001. [PDF]
  154. T. Kinnunen, T. Kilpeläinen, P. Fränti: "Comparison of Clustering Algorithms in Speaker Identification", Proc. IASTED Int. Conf. Signal Processing and Communications (SPC 2000), pp. 222-227, Marbella, Spain, September 19-22, 2000. [PDF]

Theses:

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