Microphone Array Speech Enhancement Based on a Generalized Post-Filter and a Novel Perceptual Filter

Diagram of the multichannel system


The theoretic foundation of traditional microphone array post-filters is the assumption that the noise between sensors is uncorrelated. However, this assumption is inaccurate in real environments since the correlated noise exists. In this paper, a generalized microphone array post-filter is proposed to deal with both the correlated and uncorrelated noise in environments and a novel perceptual filter is proposed to reduce the musical residual noise introduced by the post-filter. Experiments show that the proposed technique produces impressive results in terms of quality measures of the enhanced speech.

In 2008 9th International Conference on Signal Processing
Click the Cite button above to demo the feature to enable visitors to import publication metadata into their reference management software.
Ning Cheng
Ning Cheng