Noise cancelling for microphone arrays

Author

Meyer, Jens ; Sydow, Carsten

Author_Institution

Inst. of Telecommun. & Electroacoust., Darmstadt Univ. of Technol., Germany

Volume

1

fYear

1997

fDate

21-24 Apr 1997

Firstpage

211

Abstract

An application of the noise cancelling method for suppression of noise of a microphone array system is discussed. First an overview of the noise cancelling approach is given. This is followed by a description of the employment of the method in a realized microphone array system. The limiting factors are described and theoretical limits of the noise suppression are derived. Experimental results, which are obtained in a realistic environment, are presented. The results show that depending on the recording situation the noise cancelling approach applied to a microphone array system leads to a significant enhancement of the signal to noise ratio of the array output signal

Keywords

acoustic noise; acoustic signal processing; acoustic transducer arrays; array signal processing; microphones; noise abatement; SNR; array output signal; conference room; experimental results; microphone array system; microphone arrays; noise cancelling method; noise suppression; recording; signal to noise ratio; Acoustic noise; Additive noise; Employment; Filters; Hardware; Limiting; Microphone arrays; Noise cancellation; Noise reduction; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on

Conference_Location

Munich

ISSN

1520-6149

Print_ISBN

0-8186-7919-0

Type

conf

DOI

10.1109/ICASSP.1997.599604

Filename

599604