A Perspective on Differential Microphone Arrays in the Context of Noise Reduction

Author

Benesty, Jacob ; Souden, Mehrez ; Huang, Yiteng

Author_Institution

INRS-EMT, Univ. of Quebec, Montreal, QC, Canada

Volume

20

Issue

2

fYear

2012

Firstpage

699

Lastpage

704

Abstract

In this correspondence, we study the performance of differential microphone arrays (DMAs) in terms of noise reduction, speech distortion, and signal-to-noise ratio (SNR) gain. We also investigate their beampatterns and array gains. We start by establishing the expressions of these performance measures involving general derivatives of the channel transfer functions. Afterwards, we specify our results in the case of anechoic near-field and far-field propagation models.

Keywords

acoustic signal processing; array signal processing; microphone arrays; noise abatement; speech enhancement; transfer functions; DMA; SNR gain; anechoic near-field model; array gains; beampatterns; channel transfer functions; differential microphone arrays; far-field propagation models; noise reduction; performance measures; signal-to-noise ratio gain; speech distortion; Array signal processing; Microphone arrays; Noise; Speech; Speech enhancement; Array signal processing; differential microphone arrays (DMAs); microphone arrays; noise reduction; speech enhancement;

fLanguage

English

Journal_Title

Audio, Speech, and Language Processing, IEEE Transactions on

Publisher

ieee

ISSN

1558-7916

Type

jour

DOI

10.1109/TASL.2011.2163396

Filename

5970096