Rice University

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Electrical and Computer Engineering
Dean of Engineering
Texas Instruments

Speaker: Jacek Stachurski
Texas Instruments

Texas Instruments Leadership University - Seminar

Tuesday, April 8, 2014
4:30 PM  to 5:30 PM

1049  George R. Brown Hall
Rice University
6100 Main St
Houston, Texas, USA

Signal Processing – Examples in Speech Coding and Sound Localization In this presentation, we will share our experiences in applied research in the context of industry standards and proprietary development. We will present specific problems that we encountered and ideas that lead to effective solutions. We will discuss how technical innovation is the necessary but not always sufficient component of success. The examples will be drawn from our work on speech coders and sound localization applied to security applications. Combining waveform and parametric coders in the ITU G.4k standardization effort to take advantage of the strengths of both approaches, designing the G.718 embedded Code-Excited Linear Prediction (CELP) framework, techniques that improve the G.711.0 lossless coding, as well as methods to enhance performance of the GCC-PHAT estimator for robust sound source localization will be presented.

Biography of Jacek Stachurski:
Dr. Jacek Stachurski has over sixteen years of industry experience in digital signal processing applied to speech and audio coding, noise suppression, echo cancellation, packet loss concealment, audio analytics, sound activity detection and localization. Jacek received his M.Sc. in Computer Engineering from AGH University, Krakow, Poland, in 1991, and Ph.D. from McGill University, Montreal, Canada, in 1997. He joined Speech and Audio Lab in Systems and Applications R&D at Texas Instruments in 1998. Jacek has extensive experience with standardization work within the International Telecommunication Union (ITU) Media Coding Group where he has been serving as the TI representative. He invented key technologies that form essential IP in the ITU G.718 and G.711.0 coding standards, and led projects to develop novel speech enhancement and audio analytics algorithms. In addition to speech and audio processing, his recent interests include applications in ultrasonic sensing. Jacek has authored or co-authored sixteen technical papers, has eight issued patents and nine pending patent applications.

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