DocumentCode
1022787
Title
Adaptive array noise suppression of handsfree speaker input in cars
Author
Nordholm, Sven ; Claesson, Ingvar ; Bengtsson, Bengt
Volume
42
Issue
4
fYear
1993
fDate
11/1/1993 12:00:00 AM
Firstpage
514
Lastpage
518
Abstract
Handsfree speaker input of mobile telephones is most desirable today in order to enable safe operation in cars. This is also a prerequisite for voice control of car devices. This paper presents an “on the road” evaluation of the performance of an adaptive microphone array for speech enhancement in cars. The results show a signal-to-noise ratio (SNR) improvement in the range of 10-15 dB over the telephone frequency range with a slight favour for higher frequencies when driving at normal speeds
Keywords
acoustic arrays; acoustic signal processing; adaptive filters; array signal processing; microphones; mobile radio systems; noise abatement; spatial filters; speech recognition equipment; telephone sets; SNR improvement; adaptive microphone array; cars; handsfree speaker input; mobile telephones; noise suppression; signal-to-noise ratio; speech enhancement; Acoustic noise; Adaptive algorithm; Adaptive arrays; Adaptive filters; Filtering; Least squares approximation; Microphone arrays; Signal to noise ratio; Spatial resolution; Telephony;
fLanguage
English
Journal_Title
Vehicular Technology, IEEE Transactions on
Publisher
ieee
ISSN
0018-9545
Type
jour
DOI
10.1109/25.260760
Filename
260760
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