Paul Magron on Wednesday, October 17
Antoine Deleforge on Wednesday, November 14
Date: Wednesday, 14th November 2018 at 2pm
Place: LORIA, room C005
Speaker: Antoine Deleforge (Inria Nancy – Grand Est)
Title: Audio signal processing with a little help from echoes
When a sound wave propagates from a point source through a medium and is reflected on surfaces before reaching microphones, the measured signals consist of mixtures of the direct path signal with delayed and attenuated copies of itself. This acoustical phenomenon is referred to as echoes, or reverberation, and is generally considered as a nuisance in audio signal processing. After introducing some basic signal processing and acoustic background, this seminar will present recent works showing how acoustic echoes can be blindly estimated from audio recordings, and how the knowledge of such echoes can actually help some audio signal processing tasks such as beamforming, source separation or sound source localization.