DocumentCode
1124285
Title
Improved MO-LRT VAD based on bispectra Gaussian model
Author
Górriz, J.M. ; Ramírez, J. ; Segura, J.C. ; Puntonet, C.G.
Author_Institution
Dpto. de Teoria de la Sehal, Telematica y Communicaciones, Granada, Spain
Volume
41
Issue
15
fYear
2005
fDate
7/21/2005 12:00:00 AM
Firstpage
877
Lastpage
879
Abstract
A robust algorithm for voice activity detection (VAD) is presented. It defines a likelihood ratio test (LRT) involving multiple and independent observations of the bispectra. The proposed VAD provides significant improvements in speech/pause discrimination when compared to standardised and recently reported VADs.
Keywords
Gaussian distribution; maximum likelihood detection; spectral analysis; speech processing; MO-LRT VAD; bispectra Gaussian model; likelihood ratio test; pause discrimination; speech discrimination; voice activity detection;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20051761
Filename
1487762
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