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Variable Span Filtering for Speech Enhancement

Abstract: 

In this work, we consider enhancement of multichannel speech recordings. Linear filtering and subspace approaches have been considered previously for solving the problem. The current linear filtering methods, although many variants exist, have limited control of noise reduction and speech distortion. Subspace approaches, on the other hand, can potentially yield better control by filtering in the eigen-domain, but traditionally these approaches have not been optimized explicitly for traditional noise reduction and signal distortion measures. Herein, we combine these approaches by deriving optimal filters using a joint diagonalization as a basis. This gives excellent control over the performance, as we can optimize for noise reduction or signal distortion performance. Results from real data experiments show that the proposed variable span filters can achieve better performance than existing filters. In terms of output SNR, the gain was more than 8~dB, and more than 0.1 in mean opinion score in the conducted experiments.

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Paper Details

Authors:
Jacob Benesty, Mads Græsbøll Christensen
Submitted On:
18 March 2016 - 10:24am
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Jesper Rindom Jensen
Document Year:
2016
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Document Files

icassp2016varSpan_jrj.pdf

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[1] Jacob Benesty, Mads Græsbøll Christensen, "Variable Span Filtering for Speech Enhancement", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/764. Accessed: Mar. 20, 2019.
@article{764-16,
url = {http://sigport.org/764},
author = {Jacob Benesty; Mads Græsbøll Christensen },
publisher = {IEEE SigPort},
title = {Variable Span Filtering for Speech Enhancement},
year = {2016} }
TY - EJOUR
T1 - Variable Span Filtering for Speech Enhancement
AU - Jacob Benesty; Mads Græsbøll Christensen
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/764
ER -
Jacob Benesty, Mads Græsbøll Christensen. (2016). Variable Span Filtering for Speech Enhancement. IEEE SigPort. http://sigport.org/764
Jacob Benesty, Mads Græsbøll Christensen, 2016. Variable Span Filtering for Speech Enhancement. Available at: http://sigport.org/764.
Jacob Benesty, Mads Græsbøll Christensen. (2016). "Variable Span Filtering for Speech Enhancement." Web.
1. Jacob Benesty, Mads Græsbøll Christensen. Variable Span Filtering for Speech Enhancement [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/764