The effect of the additivity assumption on time and frequency domain Wiener filtering for speech enhancement

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Title The effect of the additivity assumption on time and frequency domain Wiener filtering for speech enhancement
Author Wojcicki, Kamil; So, Stephen; Paliwal, Kuldip Kumar
Publication Title Interspeech 2007
Editor Hugo Van hamme and Rob van Son
Year Published 2007
Place of publication Antwerp, Belgium
Publisher International Speech Communication Association (ISCA)
Abstract In this paper, we investigate the validity of the common assumption made in Wiener filtering that the clean speech and noise signals are uncorrelated under short-time analysis typically used for speech enhancement. In order to achieve this we have performed speech enhancement experiments, where speech corrupted by additive white Gaussian noise is enhanced by a Wiener filter designed in the time as well as the frequency domains. Results of oracle-style experiments confirm that the inclusion of the additivity assumption in Wiener filtering results in negligible degradation of enhanced speech quality. Informal listening tests show that the background noise resulting from time domain enhancement to be more tolerable than the background noise resulting from frequency domain framework.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.isca-speech.org/
Alternative URI http://www.interspeech2007.org/
ISBN 1990-9772
Conference name 8th Annual Conference of the International Speech Communication Association
Location Antwerp, Belgium
Date From 2007-08-27
Date To 2007-08-31
URI http://hdl.handle.net/10072/17264
Date Accessioned 2007-09-27
Date Available 2009-09-21T05:51:02Z
Language en_AU
Research Centre Institute for Integrated and Intelligent Systems
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Signal Processing
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1

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