Robust Speech Recognition for Unknown Communication Channels Pont-à-Mousson, France April 17-18, 1997

Recent Advances in Addressing Sources of Non-Linguistic Information

Hynek Hermansky, Carlos Avendano, Sarel van Vuuren, Sangita Tibrewala

Oregon Graduate Institute of Science & Technology, Portland, OR, USA

The paper briefly describes several techniques for handling variability introduced by unknown communication channels which are under development in our laboratory. Four techniques: 1) long-term speech analysis for alleviating harmful effects of reverberation, 2) data-driven design of RASTA-like filters for alleviating harmful effects of linear distortions, 3) multi-band ASR for alleviating harmful effects of frequency-selective noises, and 4) a simple adaptation technique for alleviating harmful effects of steady or slowly changing noise, are discussed.

Full Paper

Bibliographic reference.  Hermansky, Hynek / Avendano, Carlos / Vuuren, Sarel van / Tibrewala, Sangita (1997): "Recent advances in addressing sources of non-linguistic information", In RSR-1997, 103-106.