Masking Property Based Microphone Array Post-Filter Design

Schematic diagram of the proposed system

Abstract

This paper presents a novel post-filter for noise reduction. A subspace based noise estimation method is developed with the use of multiple statistical distributions to model the speech and noise. The signal-plus-noise subspace dimension is determined by maximizing the target speech presence probability in noisy frames, so as to estimate the noise power spectrum for post-filter design. Then, masking property is incorporated in the post-filter technique for residual noise shaping. Experimental results show that the proposed scheme outperforms the baseline systems in terms of various quality measurements of the enhanced speech.

Type
Publication
In 11th Annual Conference of the International Speech Communication Association
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
Director