Adaptive Array Noise Suppression of Handsfree Speaker Input in Cars

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Sven Nordholm, Ingvar Claesson, Bengt Bengtsson
Title: Adaptive Array Noise Suppression of Handsfree Speaker Input in Cars
Journal: IEEE Transactions on Vehicular Technology
Year: 1993
Volume: 42
Issue: 4
Pagination: 514-518
ISSN: 0018-9545
Publisher: Institute of electrical and electronics engineers
City: New York
ISI number: A1993ML17600017
Organization: Blekinge Institute of Technology
Department: Dept. of Signal Processing (Institutionen för signalbehandling)
Dept. of Signal Processing S-372 25 Ronneby
+46 455 780 00
http://www.hk-r.se/isb/isb_en.html
Authors e-mail: Sven.Nordholm@isb.hk-r.se
Language: English
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.
Subject: Signal Processing\Beamforming
Signal Processing\Speech Enhancement
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