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SPEECH/NOISE SEPARATION USING TWO MICROPHONES AND A VQ MODEL OF SPEECH SIGNALS
 

Summary: SPEECH/NOISE SEPARATION USING TWO
MICROPHONES AND A VQ MODEL OF SPEECH SIGNALS
Alex Acero, Steven Altschuler*
and Lani Wu*
Equation Section 1
Speech Technology Group
Microsoft Research
One Microsoft Way
Redmond, Washington 98052, USA
http://research.microsoft.com/srg
*
Presently at Rosetta Impharmatics, Kirkland, WA http:///www.rii.com
ABSTRACT
In this paper we address the problem of using two or more
microphones to enhance speech corrupted by nonstationary
noise, such as that of a competing speaker (cocktail party
effect) at very low SNR, by means of linear filtering of two
microphone signals. This work is a variant to the probabilistic
Independent Component Analysis (ICA) method but using a
more accurate probability distribution of the speech signal

  

Source: Altschuler, Steve - Department of Pharmacology, UT Southwestern Medical Center

 

Collections: Biotechnology