DocumentCode
2052942
Title
A practical beamformer-postfilter system for adaptive speech enhancement in non-stationary noise environments
Author
Wolff, Tobias ; Buck, Markus
Author_Institution
Nuance Commun. Aachen GmbH, Ulm, Germany
fYear
2011
fDate
May 30 2011-June 1 2011
Firstpage
159
Lastpage
160
Abstract
In this contribution we present an adaptive beamformer-postfilter system which can be used to suppress non-stationary noises. The emphasis lies on the spatial filtering property of the proposed postfilter. Due to the spatial characteristic of the postfilter, an interfering speaker in background noise can be suppressed effectively while maintaining the quality of the desired speech using only two microphones.
Keywords
adaptive signal processing; array signal processing; filtering theory; speech enhancement; adaptive speech enhancement; beamformer-post filter system; microphones; nonstationary noise environments; spatial filtering property; Adaptive systems; Coherence; Microphones; Noise; Noise measurement; Speech; Speech enhancement; Beamforming; Multi-Channel Speech Enhancement; Non-Stationary Noise; Spatial Postfilter;
fLanguage
English
Publisher
ieee
Conference_Titel
Hands-free Speech Communication and Microphone Arrays (HSCMA), 2011 Joint Workshop on
Conference_Location
Edinburgh
Print_ISBN
978-1-4577-0997-5
Type
conf
DOI
10.1109/HSCMA.2011.5942387
Filename
5942387
Link To Document