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A (very brief) presentation of the Speech Signal Processing Laboratory (SSPL) George P. Kafentzis Post-Doctoral Researcher & Adjunct Lecturer Department of Computer Science University of Crete UNIVERSITY OF C R E T E UNIVERSITY OF C

  1. A (very brief) presentation of the Speech Signal Processing Laboratory (SSPL) George P. Kafentzis Post-Doctoral Researcher & Adjunct Lecturer Department of Computer Science University of Crete UNIVERSITY OF C R E T E

  2. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory  Members:  External Members:  Dr Vassilis Tsiaras Teaching Staff ( ΕΔΙΠ) @ EECS, TUC Machine Learning Prof. Yannis Stylianou Dr George Kafentzis Dr Anna Sfakianaki  Dr Devora Kiagiadaki Head of SSPL Post-doctoral Researcher Teaching Staff ( ΕΔΙΠ) MD-ENT, PhD Professor & Senior Research Adjunct Lecturer @ CSD @ CSD Speech Pathologies Scientist @ Apple UK Signal Processing Phonetics IEEE Fellow, ISCA Fellow Signal Processing  Post-doctoral Researchers :  Dr Nagaraj Adiga – Speech Enhancement  PhD Students :  Dr Yannis Pantazis,  Muhammed Shifas PV – Wavenet-based Speech Enhancement Researcher @ IACM,  Dipjyoti Paul – GAN-based Voice Conversion FORTH  MSc Students : Mathematics of  Irene Sisamaki – Text to Speech Synthesis in Greek Signal Processing &  Leonidas Bakayannis – GAN-based Speech Enhancement Deep Learning  BSc Students :  Anastassis Livanidis – Speech Dereverberation/Enhancement  Manolis Kelaidis – Perceptual Coding & Advanced Sinusoidal Models  Ioanna Kanaria – EEG & Speech Coupling  Alexandra Kalozoumi – Emotion Detection from Speech Signals

  3. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Research Interests  Speech Signal Processing  Audio Signal Processing  Machine/Deep Learning for Speech Processing Specifically: • • Wavenet SSDRC • • LDMs wSSDRC o Statistical Speech Synthesis • • Adaptive Tremor Estimation • Sinusoidal Models Jitter/Shimmer Estimation

  4. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Laboratory ( + 2 external servers equipped with SOTA GPUs )

  5. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Professional recording booth (worth ~20K € )

  6. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Professional Laboratory for Speech-related Medical Examinations

  7. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Some Projects & Collaborations (2009- …)  Collaboration Agreements  Several Projects from GME & GSRT with France Telecom (now Orange) [ 2009-2013 ]  Collaboration Agreements with Toshiba Research Europe Limited [ 2012-2017 ]  ENRICH – EU Project 675324 Marie Curie European Training Network [ 2016- … ]  Latsis Foundation Projects  Collaboration Agreements with Apple Inc. [ 2018- … ]  Strong collaborations with the Institute of Computer Science and Institute of Applied and Computational Mathematics, FO.R.T.H [ 2018- … ]

  8. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Friends around the world (2009- …)

  9. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Education SSPL supports the Computer Science Department by offering the following courses: Undergraduate Courses  CS112 – Physics for Engineers • Mechanics, Oscillations and Waves, Electromagnetism  CS215 – Signals and Systems • Continuous-time Signals, Systems, and Transforms  CS370 – Digital Signal Processing • Discrete-time Signals, Systems, and Transforms Graduate Courses  CS590.74 – Introduction to Speech Science and Technologies • Speech production and perception, phonetics, phonology, etc.  CS578 – Digital Speech Signal Processing • Speech production, modeling, analysis, synthesis, coding, speaker identification, etc.

  10. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Education SSPL (with the support of the department) organizes a summer school on speech processing each year Speech Processing Courses in Crete (SPCC) http://www.csd.uoc.gr/~spcc The Speech Processing Courses in Crete (SPCC) are targeting to teach graduate students and researchers the latest advance- ments of speech processing covering theory, hands-on sessions, and establishing contacts between the academics and industry.

  11. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Alumni • Yannis Agiomyrgiannakis, Researcher @ Google, UK (until recently) • Andre Holzapfel, Assistant Professor @ KTH, Sweden • Maria Koutsogiannaki, AI Researcher @ Sherpa AI, Spain • Yannis Pantazis, Researcher @ IACM-FORTH, Greece • Maria Markaki, Post-doctoral Researcher @ UoC, Greece • Olina Simantiraki, Ph. D student @ University of Basque Country, Spain • Veronica Morfi, Ph. D student @ Queen Mary Univ. College, UK • Miltiadis Vasilakis, Partner & Software Engineer @ Koomasi, Greece • Maria Astrinaki, Senior Software Engineer @ Sound United, Switzerland • Myron Apostolakis, Software Engineer @ Sunlight.io, UK • Theodora Giakoumaki, Software Engineer @ Tom Sawyer Software, Greece • and more…

  12. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Selected Publications (2015- …) • M. Shifas PV , C. Chermaz, T. Chimona, V. Tsiaras , and Y. Stylianou , “Benefits of the WaveNet-Based Speech Intelligibility Enhancement for Normal and Hearing Impaired Listeners”, In ICA proceeding, 2019. • M. Shifas PV , C. Santelli, and Y. Stylianou , “Towards Neural-Based Single Channel Speech Enhancement for Hearing Aids”, ICA 2019. • A. Sfakianaki , “Designing a Modern Greek sentence corpus for audiological and speech technology research”, ICGL14, 2019. • K. Nicolaidis, A. Sfakianaki , G. Vlahavas, G. P. Kafentzis , “An Acoustic Study of Greek Voiceless Stops”, International Congress of Phonetic Sciences, Australia, 2019. • D. Paul, Y. Pantazis , Y. Stylianou , “Non -Parallel Voice Conversion Using Weighted Generative Adversarial Networks”, INTERSPEECH, 2019. • D. Paul , Y. Pantazis , Y. Stylianou , “Weighted Generative Adversarial Network for many-to-many Voice Conversion”, ICA 2019. • N. Adiga , Y. Pantazis , V. Tsiaras , and Y. Stylianou , “ Speech Enhancement for Noise-Robust Speech Synthesis using Wasserstein GAN”, INTERSPEECH, 2019. • M. Shifas PV , N. Adiga , V. Tsiaras , Y. Stylianou , “A non-causal FFTNet architecture for speech enhancement”, INTERSPEECH, 2019. • Y. Pantazis , D. Paul , M. Fasoulakis, Y. Stylianou , “Training Generative Adversarial Networks with Weights”, EUSIPCO 2019. • N. Adiga , V. Tsiaras , and Y. Stylianou , “On the use of WaveNet as a Statistical Vocoder”, IEEE ICASSP, 2018. • M. Shifas PV , V. Tsiaras , Y. Stylianou , “Speech Intelligibility Enhancement Based on a Non-causal Wavenet-like Model”, INTERSPEECH, 2018. • A. Sfakianaki , G. P. Kafentzis , “Assessing voice features of Greek speakers with hearing loss”, 1st Conference on Interdisciplinary Approaches to Linguistic Theory, Greece, 2017. • G. P. Kafentzis , Y. Stylianou , “High - Resolution Sinusoidal Modeling of Unvoiced Speech”, ICASSP, China, 2016 . • A. Koutrouvelis, G. P. Kafentzis , N. Gaubitch, R. Heusdens , “High -Resolution Voiced/Unvoiced Detection and Glottal Closure/Opening Instant Estimation of Speech”, IEEE/ACM Transactions on Audio, Speech, and Language Processing, vol. 24 (2), 2016. • M. Caetano, G. P. Kafentzis , A. Mouchtaris , Y. Stylianou , “Full -Band Quasi-Harmonic Analysis and Synthesis of Musical Instrument Sounds with Adaptive Sinusoids”, Applied Sciences, Special Issue on Audio Signal Processing, vol. 6 (127), 2016. • M. Koutsogiannaki , Y. Stylianou , “Modulation Enhancement of Temporal Envelopes for Increasing Speech Intelligibility in Noise”, INTERSPEECH, 2016. • M. Caetano, G. P. Kafentzis , A. Mouchtaris , “ Adaptive Modeling of Nonstationary Sinusoids”, International Conference on Digital Audio Effects, Norway, 2015. • M. Koutsogiannaki , P. N. Petkov, Y. Stylianou , “Intelligibility enhancement of casual speech for reverberant environments inspired by clear speech properties”, INTERSPEECH, 2015. • … • …

  13. UNIVERSITY OF C R E T E Speech Signal Processing Laboratory Ευχαριστώ για την προσοχή σας! Thank you for your attention 

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