Title :
Proposal of a voice activity detector for noise reduction
Author :
Le Bouquin Jeannes, Regine ; Faucon, G.
Author_Institution :
Lab. de Traitement du Signal et de l´Image, Rennes I Univ.
fDate :
6/9/1994 12:00:00 AM
Abstract :
In some noise reduction techniques, the learning of noise characteristics is required and a voice activity detector (VAD) must be used to determine noise sequences. The VAD proposed is derived from the coherence function computed from two microphones. It is combined with a noise reduction technique and its influence evaluated
Keywords :
interference suppression; mobile radio systems; speech analysis and processing; coherence function; hands-free system; microphones; mobile radio; noise characteristics learning; noise reduction; voice activity detector;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940625
