Optimal binaural LCMV beamformers for combined noise reduction and binaural cue preservation

Daniel Marquardt, Elior Hadad, Sharon Gannot, Simon Doclo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Besides noise reduction an important objective of binaural speech enhancement algorithms is the preservation of the binaural cues of both desired and undesired sound sources. Re-cently, the binaural Linearly Constrained Minimum Variance (BLCMV) beamformer has been proposed that aims to preserve the desired speech component and suppress the undesired directional interference component while preserving the binaural cues of both components. Since the performance of the BLCMV beamformer highly depends on the amount of interference rejection determined by the interference rejection parameter, in this paper we propose several performance criteria to optimize the interference rejection parameters for the left and the right hearing aid. Experimental results show how the performance of the BLCMV beamformer is affected by the different optimal parameter combinations.

Original languageEnglish
Title of host publication2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages288-292
Number of pages5
ISBN (Electronic)9781479968084
DOIs
StatePublished - 11 Nov 2014
Event2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014 - Juan-les-Pins, France
Duration: 8 Sep 201411 Sep 2014

Publication series

Name2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014

Conference

Conference2014 14th International Workshop on Acoustic Signal Enhancement, IWAENC 2014
Country/TerritoryFrance
CityJuan-les-Pins
Period8/09/1411/09/14

Keywords

  • Hearing aids
  • binaural cues
  • directional interference
  • noise reduction

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Computer Networks and Communications
  • Acoustics and Ultrasonics

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