Ivan Tashev
PRINCIPAL SOFTWARE ARCHITECT
.
Research interests
- Multichannel audio signals processing
- Algorithms for arrays of transducers (microphones, speakers, antennas)
- Processing of signals for enhancement, de-noising, de-reverberation, etc.
- Statistical processing of audio, biological, radio signals
Background
Education
- Several short specializations in the area of eLearning in France (ENIC, ENSEA) and Italy (Bologna University) (1995-1996).
- Ph.D. in Computer Science, 1990, Technical University of Sofia, Bulgaria.
- Master's Degree in Electronics, 1984, Technical University of Sofia, Bulgaria.
Career
- Microsoft Corporation, Redmond, USA: various positions in COM+ and Application Center teams, 1998-2001. Joined Microsoft Research in 2001.
- Technical University of Sofia, Bulgaria: Assistant Professor, 1989-1998, Faculty of Electronic Engineering and Technology (lectures and labs for "Data and Signal Processing" and "Real time systems programming").
- Technical University of Sofia, Bulgaria: Researcher, 1986-1989, Research and Development Department
- Technical University of Sofia, Bulgaria: R&D engineer, 1984-1986, Research and Development Department
Professional Activities
- Affiliate Professor in the Department of Electrical Engineering in University of Washington, Seattle, since 2012.
- Member of IEEE Signal Processing Society Standing Committee on Industrial Digital Signal Processing (IDSP) since 2012.
- "3D Stereo Media" conference, December 2010, Liege, Belgium: Workshop organizer "Natural User Interfaces with gesture and speech using Kinect"
- Member of the TC of Auto UI 2010 conference.
- Member of the TC of Workshop on Speech in Mobile and Pervasive Environments (SiMPE) since 2009.
- Member of IEEE Signal Processing Society Technical Committee on Audio and Acoustic Signal Processing (AASP) since 2009.
- Reviewer for most of the signal and audio processing journals.
- Member of the TC of International Workshop on Acoustics, Echo and Noise Control (IWAENC) since 2006. One of the organizers of IWAENC 2008 in Seattle.
- Member of the TC of Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) since 2006.
- Senior Member of IEEE since 2006.
- Member of AES, serving as member of the AES Pacific Northwest Committee since 2006.
- Tutorial "Defeating ambient noise - practical approaches" during ICASSP 2006 in Toulouse, France.
- Served as member of the Technical Program Committee of ICME 2002 and ICME 2003, session chair in ICME 2003.
- Co-founder in 1986 and organizational secretary for 12 years of the International Conference Systems for Automation of Engineering and Research (SAER), now serving as member of the International Organizing Committee. The conference name has recently been updated to International Conference on Information Technologies INFOTECH.
Microsoft Products I helped
- Kinect for Windows - audio pipeline architecture, DSP algorithms
- Xbox Kinect - audio pipeline architecture, DSP algorithms
- Windows Embedded for Automotive 7.0 - speech enhancement algorithms
- Microsoft Auto platform 4.1 - speech enhancement algorithms
- Windows Vista - microphone array support
- Microsoft Round Table Device - audio architecture, microphone array support
- Application Center 2000 - performance, interoperability, end-to-end scenarios
- Windows 2000 - COM+ feature (object pooling, end-to-end scenarios)
Selected presentations and talks
- Tutorial "Optimization methods and their applications in DSP", IEEE International Conference on Emerging SIgnal Processing Applications, Las Vegas, January 2012.
- Keynote “Recent Advances in Human-Machine Interfaces for Gaming and Entertainment” during the opening session of the 25th International Conference Infotech 2011, St. Constantine and Elena resort, Varna, Bulgaria, September 2011.
- Keynote "Novel Electronic Sensors and their Applications in the Human-Machine Interfaces for Gaming and Entertainment" during the opening session of the 20th International Scientific Conference "Electronics ET 2011", Sozopol, Bulgaria, September 2011.
- Keynote "Hands-free Sound Capture and Microphone Array in Kinect" during HSMA 2011 conference, Edinburgh, UK, May 2011.
- Lecture "Audio for Kinect: almost impossible" in the Open University Skolkovo, Moscow, Russia, June 2011 (announcement here).
- MIX 2011 conference, March 2011, Las Vegas, NV, USA:
- "Kinect Audio: Preparedness Pays Off", interview by Rob Knies, April 2011 [article].
- "3D Stereo Media" conference, December 2010, Liege, Belgium:
- Talk "Applications of 3D range cameras in multimodal user interfaces for gaming and entertainment"
- Talk "Sound capture for high-end entertainment and gaming equipment and its applications"
- "Sound Capture Applications in Entertainment and Gaming", meeting of the Pacific Northwest Section of AES, December 2010 [video].
- "Audio for entertainment and gaming", tutorial during 3DTV CON 2010, June 2010, Tampere, Finland.
- "Sound capture and its applications in entertainment, gaming, and telepresence", short course during the summer school for grad students in Technical University of Tampere, June 2010, Tampere, Finland.
- "Sound Capture for Multimedia Systems", tutorial during ICME 2009, June 2009, New York, NY, USA.
- "Commute UX: Telephone Dialog System for Location-based Services". Presentation during SIGdial Workshop on Disclosure and Dialogue 2007, Antwerp, Belgium, September 2007. [PDF]
- "Defeating Ambient Noise: Practical Approaches for Noise Reduction and Suppression". Tutorial during IEEE International Conference of Acoustic, Speech and Signal Processing ICASSP 2006, Toulouse, France, May 2006. [Slides, References]
- "Microphone Array for Headset with Spatial Noise Suppressor". Presentation during Ninth International Workshop on Acoustic, Echo and Noise Control IWAENC 2005, Eindhoven, The Netherlands, September 2005. [PDF]
- "Microphone Array Support in Windows Longhorn". Presentation during Windows Hardware Experience Conference WinHEC 2005, Seattle, USA, May 2005. The same talk given during WinHEC 2005, Taipei, Taiwan, June 2005. [PDF]
- "Microphone Array Project in Microsoft Research: Approach and Results". Presentation in National Taiwan University and Academia Sinica, July 2004, Taipei, Taiwan. [PDF]
- "Improving Meetings with Microphone Array Algorithms". Presentation during Machine Learning Meets the User Interface Workshop, Neural Information Processing Systems NIPS 2003, Whistler, Canada, December 2003. [PDF]
- "Application Center 2000 Interoperability and Reliability". Presentation during Application Center 2000 Airlift, Redmond, USA, May 2001. [PDF]
Recent Publications
2013
- Ivan Tashev and Malcolm Slaney, Data Driven Suppression Rule for Speech Enhancement, in Information Theory and Applications Workshop , University of California - San Diego, 14 February 2013
2012
- Kenichi Kumatani, Takayuki Arakawa, Kazumasa Yamamoto, John McDonough, Bhiksha Raj, Rita Singh, and Ivan Tashev, Microphone Array Processing for Distant Speech Recognition: Towards Real-World Deployment, in APSIPA Annual Summit and Conference, Hollywood, CA, USA, 5 December 2012
- Jens Ahrens, Mark R.P. Thomas, and Ivan Tashev, HRTF Magnitude Modeling Using a Non-Regularized Least-Squares Fit of Spherical Harmonics Coefficients on Incomplete Data, in APSIPA Annual Summit and Conference, Hollywood, CA, USA, 4 December 2012
- Mark R. P. Thomas, Jens Ahrens, and Ivan Tashev, Beamformer Design Using Measured Microphone Directivity Patterns: Robustness to Modelling Error, in APSIPA Annual Summit and Conference, Hollywood, CA, USA, December 2012
- Mark R. P. Thomas, Jens Ahrens, and Ivan Tashev, Optimal 3D Beamforming Using Measured Microphone Directivity Patterns, Proc. Intl. Workshop Acoust. Signal Enhancement (IWAENC), Aachen, Germany, 4 September 2012
- Ivan J. Tashev, Audio for Kinect: pushing it to the limit (invited talk), in CREST Symposium on Human-Harmonized Information Technology, University of Kyoto, 2 April 2012
- Ivan J. Tashev, Coherence Based Double Talk Detector with Soft Decision, IEEE International Confrence on Acoustics, Speech, and Signal Processing (ICASSP), 27 March 2012
- Ivan J. Tashev, Optimizing Kinect: Audio and Acoustics, in Inormation Technologies and Applications Workshop, University of California - San Diego, 8 February 2012
- Ivan J. Tashev, Audio for Kinect: Nearly Impossible (invited talk), in IEEE International Conference on Emerging Signal Processing Applications, IEEE SPS, 14 January 2012
2011
- George Nychis, Ranveer Chandra, Thomas Moscibroda, Ivan Tashev, and Peter Steenkiste, Reclaiming the White Spaces: Spectrum Efficient Coexistence with Primary Users, in ACM CoNEXT (selected as one of top 3 papers), ACM, December 2011
- Ivan Tashev, Coherence Based Double Talk Detector with Adaptive Threshold, in XX Scientific Conference ELECTRONICS ET2011, Technical University of Sofia Publishing House, 15 September 2011
- Ivan Tashev, Recent Advances in Human-Machine Interfaces for Gaming and Entertainment, in International Journal on Information Technology and Security, vol. III, no. 3, pp. 69-76, Union of Scientists in Bulgaria, September 2011
- Michael L. Seltzer, Yun-Cheng Ju, Ivan Tashev, Ye-Yi Wang, and Dong Yu, In Car Media Search, in IEEE Signal Processing Magazine, IEEE SPS, June 2011
- Hoang Do, Ivan Tashev, and Alex Acero, A New Speaker Identification Algorithm for Gaming Scenarios, in ICASSP, IEEE, May 2011
2010
- Sven Nordholm, Thushara Abhayapala, Simon Doclo, Sharon Gannot, Patrick Naylor, and Ivan Tashev, Microphone Array Speech Processing, in EURASIP Journal on Advances in Signal Processing, HINDAWI, 16 September 2010
- Ivan Tashev and Alex Acero, Statistical Modeling of the Speech Signal, in International Workshop on Acoustic, Echo, and Noise Control (IWAENC), Tel Aviv, Israel, 1 September 2010
- Ivan Tashev, Andrew Lovitt, and Alex Acero, Dual stage probabilistic voice activity detector, in NOISE-CON 2010 and 159th Meeting of the Acoustical Society of America, Acoustical Society of America, 20 April 2010
- Lae-Hoon Kim, Ivan Tashev, and Alex Acero, Reverberated Speech Signal Separation Based on Regularized Subband Feedforward ICA and Instantaneous Direction of Arrival, in International Conference on Acoustics, Speech and Signal Processing, IEEE, 16 March 2010
2009
- Ivan Tashev, Michael L. Seltzer, and Yun-Cheng Ju, Speech and sound for in-car infotainment systems, in Automotive User Interfaces and Interactive Vehicular Applications (AutomotiveUI 2009), Association for Computing Machinery, Inc., Essen, Germany, 22 September 2009
- Ivan Tashev, Michael Seltzer, Yun-Cheng Ju, Ye-Yi Wang, and Alex Acero, Commute UX: Voice Enabled In-car Infotainment System, in Mobile HCI '09: Workshop on Speech in Mobile and Pervasive Environments (SiMPE), Association for Computing Machinery, Inc., Bonn, Germany, 15 September 2009
- Yun-Cheng Ju, Michael Seltzer, and Ivan Tashev, Improving Perceived Accuracy for In-Car Media Search, International Speech Communication Association, September 2009
- Ivan Tashev, Andrew Lovitt, and Alex Acero, Unified Framework for Single Channel Speech Enhancement, in 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, IEEE, Victoria B.C., Canada, 24 August 2009
- Ivan Tashev, Sound Capture and Processing: Practical Approaches, pp. 388, Wiley, July 2009
- Young-In Song, Ye-Yi Wang, Yun-Cheng Ju, Mike Seltzer, Ivan Tashev, and Alex Acero, Voice Search of Structured Media Data, in International Conference on Acoustics, Speech and Signal Processing, Institute of Electrical and Electornic Engineers, Inc., Taipei, Taiwan, April 2009
2008
- Ivan Tashev and Michael Seltzer, Data Driven Beamformer Design for Binaural Headset, in Proceedings of International Workshop on Acoustic, Echo and Noise Control IWAENC 2008, Seattle, USA, September 2008
- Michael Seltzer and Ivan Tashev, A Log-MMSE Adaptive Filter Using a non-Linear Spatial Filter, in Proceedings of International Workshop on Acoustic, Echo and Noise Control IWAENC 2008, Seattle, USA, September 2008
- Ivan Tashev, Slavy Mihov, Tyler Gleghorn, and Alex Acero, Sound Capture System and Spatial Filter for Small Devices, in Proceedings of Interspeech 2008, International Speech Communication Association, Brisbane, Australia, September 2008
- Dong Yu, Li Deng, Jasha Droppo, Jian Wu, Yifan Gong, and Alex Acero, Robust speech recognition using cepstral minimum-mean-square-error noise suppressor, in IEEE Trans. Audio, Speech, and Language Processing, vol. 16, no. 5, Institute of Electrical and Electronics Engineers, Inc., July 2008
- Slavy Mihov, Tyler Gleghorn, and Ivan Tashev, Enhanced Sound Capture System for Small Devices, in Proceedings of XLIII International Scientific Conference on Information, Communication, and Energy Systems and Technologies ICEST 2008, Nis, Serbia, June 2008
- Nilesh Madhu, Ivan Tashev, and Alex Acero, An EM-based Probabilistic Approach for Acoustic Echo Suppression, in Proceedings of International Conference on Audio, Speech and Signal Processing ICASSP 2008, Institute of Electrical and Electronics Engineers, Inc., Institute of Electrical and Electronics Engineers, Inc., Las Vegas, USA, April 2008
- Ivan Tashev, Jasha Droppo, Michael Seltzer, and Alex Acero, Robust Design of Wideband Loudspeaker Arrays, in Proc. of International Conference on Audio, Speech and Signal Processing, Institute of Electrical and Electronics Engineers, Inc., Las Vegas, USA, April 2008
- Luis Buera, Jasha Droppo, and Alex Acero, Speech Enhancement using a Pitch Predictive Model, in Proc. of the Int. Conf. on Acoustics, Speech, and Signal Processing, Institute of Electrical and Electronics Engineers, Inc., April 2008
2007
- Ivan Tashev, Michael Seltzer, Y. C. Ju, Dong Yu, and Alex Acero, Commute UX: Telephone Dialog System for Location-based Services, in Proceedings of SIGdial Workshop on Disclosure and Dialogue 2007, Antwerp, Belgium, September 2007
- Michael Seltzer, Y. C. Ju, Ivan Tashev, and Alex Acero, Robust Location Understanding in Spoken Dialog Systems Using Intersections, in Proceedings of Interspeech 2007, Antwerp, Belgium, August 2007
- Byung-Jun Yoon, Ivan Tashev, and Alex Acero, Robust Adaptive Beamforming Algorithm Using Instantaneous Direction of Arrival with Enhanced Noise Suppression Capability, in Proceedings of International Conference on Audio, Speech and Signal Processing ICASSP 2007, Honolulu, USA, April 2007
- Michael Seltzer, Ivan Tashev, and Alex Acero, Microphone Array Post-Filter Using Incremental Bayes Learning to Track the Spatial Distribution of Speech and Noise, in Proceedings of International Conference on Audio, Speech and Signal Processing ICASSP 2007, Honolulu, USA, April 2007
- Ivan Tashev and Henrique Malvar, Stationary-Tones Interference Cancellation Using Adaptive Tracking, in International Conference on Acoustics, Speech and Signal Processing, Institute of Electrical and Electronics Engineers, Inc., Honolulu, USA, April 2007
2006
- Ivan Tashev and Alex Acero, Microphone Array Post-Processor Using Instantaneous Direction of Arrival, in Proceedings of International Workshop on Acoustic, Echo and Noise Control IWAENC 2006, Paris, France, September 2006
- Yong Rui, Eric Rudolph, Li-wei He, Rico Malvar, Michael Cohen, and Ivan Tashev, PING: A Group-to-Individual Distributed Meeting System, in Proceedings of International Conference Multimedia and Expo, Institute of Electrical and Electronics Engineers, Inc., Toronto, Canada, July 2006
- Ivan Tashev, Jasha Droppo, and Alex Acero, Suppression Rule for Speech Recognition Friendly Noise Suppressors, in Proceedings of Eight International Conference Digital Signal Processing and Applications DSPA’06, Moscow, Russia, March 2006
2005
- Zicheng Liu, Michael Seltzer, Alex Acero, Ivan Tashev, Zhengyou Zhang, and Mike Sinclair, A Compact Multi-Sensor Headset for Hands-Free Communication, in Proceedings of Workshop on Applications of Signal Processing to Audio and Acoustics, New Paltz, USA, October 2005
- Ivan Tashev, Beamformer Sensitivity to Microphone Manufacturing Tolerances, in Proceedings of Nineteenth International Conference Systems for Automation of Engineering and Research SAER 2005, St. Konstantin Resort, Bulgaria, September 2005
- Ivan Tashev, Michael Seltzer, and Alex Acero, Microphone Array for Headset with Spatial Noise Suppressor, in Proceedings of Ninth International Workshop on Acoustic, Echo and Noise Control IWAENC 2005, Eindhoven, The Netherlands, September 2005
- Ivan Tashev and Henrique Malvar, A New Beamformer Design Algorithm for Microphone Arrays, in International Conference of Acoustic, Speech and Signal Processing, Institute of Electrical and Electronics Engineers, Inc., Philadelphia, USA, March 2005
- Ivan Tashev and Daniel Allred, Reverberation reduction for improved speech recognition, in Proceedings of Hands-Free Communication and Microphone Arrays, Piscataway, USA, March 2005
2004
- Ivan Tashev, Gain Self-Calibration Procedure for Microphone Arrays, in Proceedings of International Conference for Multimedia and Expo ICME 2004, Taipei, Taiwan, June 2004
2003
- Ivan Tashev, Improving Meetings with Microphone Array Algorithms, in Machine Learning Meets the User Interface Workshop, Neural Information Processing Systems NIPS 2003, Whistler, Canada, December 2003
2002
- Ross Cutler, Yong Rui, Anoop Gupta, JJ Cadiz, Ivan Tashev, Li-wei He, Alex Colburn, Zhengyou Zhang, Zicheng Liu, and Steve Silverberg, Distributed Meetings: A Meeting Capture and Broadcasting System, in Proceedings of ACM Multimedia 2002, Nice, France, December 2002
For the full list of publications click here.
Contact info
E-mail: ivantash--at--microsoft--dot--com
Postal Mail: Microsoft Corporation, One Microsoft Way, Redmond WA, 98052-6399, USA
Tel: +1 (425) 706-1667
Fax: +1 (425) 936-7329 (This is the main Microsoft FAX number so make sure to send documents to my attention)
