Microphone arrays for noise reduction with low signal distortion in room acoustics

Author

Souden, Mehrez ; Benesty, Jacob ; Affes, Sofiéne

Author_Institution

INRS-EMT, Montreal, QC

fYear

2008

fDate

March 31 2008-April 4 2008

Firstpage

77

Lastpage

80

Abstract

We propose a new method for noise reduction using a microphone array. The method takes advantage of the spatial diversity inherent to microphone arrays and optimizes certain criteria, namely, the output signal to noise ratio (SNR) or the mean squared error (MSE), subject to the constraint of spatial prediction that relates the noise free signals captured by the microphones. Simulation results demonstrate that resorting to this new method leads to high rate of noise reduction and low signal distortion.

Keywords

distortion; mean square error methods; microphone arrays; signal denoising; speech processing; low signal distortion; mean squared error; microphone arrays; noise reduction; room acoustics; signal to noise ratio; Acoustic distortion; Colored noise; Constraint optimization; Filters; Jacobian matrices; Microphone arrays; Noise reduction; Reverberation; Signal to noise ratio; Speech enhancement; Noise reduction; Wiener filter; microphone array; spatial prediction; speech distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on

Conference_Location

Las Vegas, NV

ISSN

1520-6149

Print_ISBN

978-1-4244-1483-3

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2008.4517550

Filename

4517550