Title :
A two-microphone approach for speech enhancement in hands-free communications
Author :
Lebouquin-Jeannes, R. ; Faucon, G. ; Ayad, B.
Author_Institution :
Lab. Traitement du Signal et de l´´Image, Rennes I Univ., France
Abstract :
This paper proposes a two-microphone technique for noise reduction and acoustic echo cancellation (AEC) in hands-free communications. Contrary to the standard cascaded structure, this new structure includes a preprocessing which allows to reduce the noise influence on the AEC system. The efficiency of the new structure is proved through objective measures and listening tests
Keywords :
echo suppression; filtering theory; microphones; speech enhancement; acoustic echo cancellation; hands-free communications; listening tests; noise reduction; objective measures; optimal filtering; preprocessing; speech enhancement; two-microphone approach; Acoustic noise; Additive noise; Echo cancellers; Filtering; Microphones; Noise cancellation; Noise reduction; Proposals; Speech enhancement; Wiener filter;
Conference_Titel :
Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2916-3
DOI :
10.1109/ICCT.1996.545213
