Efficient Speech Dereverberation for Binaural Hearing Aids

Authors:

Löllmann, H. W. ,  Vary, P.

Book Title:

ITG-Fachtagung Sprachkommunikation

Publisher:

VDE Verlag

Pages:

p.p. 279-282

Date:

Sep. 2012

Language:

English

Abstract

An efficient two-stage algorithm for binaural cue preserving speech dereverberation by spectral weighting is presented. The first stage reduces late reverberant speech components where the second stage aims at a suppression of non-coherent early and remaining late reverberant speech components. The proposed system is based on the binaural speech dereverberation algorithm of Jeub et al. [3]. In contrast to that contribution, the realization of the needed delayand-sum beamformer and the blind estimation of reverberation time and time-difference-of-arrival with low complexity and low delay is tackled. In addition, the problem of a decreased signal energy for the enhanced signal due to spectral weighting is addressed by an efficient approach.

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