A New Design Method for Broadband Microphone Arrays for Speech Input in Automobiles

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Full text:
Author(s): Cedric Yiu Ka Fai, Nedelko Grbic, Teo Kok-Lay, Sven Nordholm
Title: A New Design Method for Broadband Microphone Arrays for Speech Input in Automobiles
Translated title: En ny design-metod för bredbandiga mikrofon arrayer för talsignaler i bilmiljö
Journal: IEEE Signal Processing Letters
Year: 2002
Volume: 9
Issue: 7
Pagination: 222-224
ISSN: 1070-9908
Publisher: IEEE
URI/DOI: 10.1109/LSP.2002.802109
ISI number: 000177465400010
Organization: Blekinge Institute of Technology
Department: Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling)
Department of Telecommunications and Signal Processing S-372 25 Ronneby
+46 455 38 50 00
Authors e-mail: makfcyiu@polyu.edu.hk, ngr@bth.se, mateokl@polyu.edu.hk, sven@watri.uwa.edu.au
Language: English
Abstract: A new design method for broadband microphone arrays is presented. Using sequences of calibration signals, the method is able to design finite-impulse response (FIR) filters with specific performance. The method can control and adjust the speech distortion, noise suppression, and echo cancellation directly. It turns out that a significantly shorter filter length can be applied to achieve better overall performance than the least-squares method or the signal-to-noise plus interference method.
Subject: Signal Processing\Beamforming
Signal Processing\Speech Enhancement
Keywords: Beamforming, Spech enhancement, Optimal
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