Generalized optimal multi-microphone speech enhancement using sequential minimum variance distortionless response (MVDR) beamforming and postfiltering

Lae Hoon Kim, Mark Allan Hasegawa-Johnson, Koeng Mo Sung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A theoretical basis for optimal multichannel speech enhancementis presented, sufficient, flexible to be used with any assumed statistical model and optimality criterion. Any Bayesian optimal one-channel estimator for speech enhancement can be generalized to the multi-channel case as a sequentially constructed minimum variance distortionless response (MVDR) beamformer followed by an optimal one-channel postfilter. We present experimental results using the minimum mean-square error log-spectral amplitude (MMSE-logSA) optimality criterion, applied to a statistical model with simplified channel but realistic inter-microphone noise coherence. Word error rate in the audio-visual speech in a car (AVICAR) corpus (moving car. windows open) is reduced from 18% to 9%.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
Volume3
StatePublished - 2006
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
CountryFrance
CityToulouse
Period5/14/065/19/06

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Generalized optimal multi-microphone speech enhancement using sequential minimum variance distortionless response (MVDR) beamforming and postfiltering'. Together they form a unique fingerprint.

  • Cite this

    Kim, L. H., Hasegawa-Johnson, M. A., & Sung, K. M. (2006). Generalized optimal multi-microphone speech enhancement using sequential minimum variance distortionless response (MVDR) beamforming and postfiltering. In 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings (Vol. 3). [1660591]