Single sensor active noise cancellation based on the EM algorithm

Author

Oppenheim, A.V. ; Weinstein, E. ; Zangi, K.C. ; Feder, M. ; Gauger, D.

Author_Institution

MIT, Cambridge, MA, USA

Volume

1

fYear

1992

fDate

23-26 Mar 1992

Firstpage

277

Abstract

The authors develop an approach to active noise cancellation using a single microphone. The noise field is modelled as a stochastic process, and a time-adaptive algorithm based on a modification of the block-estimate-maximize (EM) algorithm is used to adaptively estimate the parameters of this process. Based on these parameter estimates a canceling signal is generated. The algorithm developed is evaluated with recordings of aircraft noise, and has been implemented in real time with a single AT&T DSP32C chip

Keywords

acoustic noise; acoustic signal processing; aircraft; digital signal processing chips; noise abatement; parameter estimation; stochastic processes; AT&T DSP32C chip; EM algorithm; aircraft noise; block estimate-maximize algorithm; microphone; noise field; parameter estimation; single sensor active noise cancellation; stochastic process; time-adaptive algorithm; Acoustic noise; Active noise reduction; Iterative algorithms; Microphones; Noise cancellation; Noise figure; Noise measurement; Sensor systems; Signal processing algorithms; Stochastic processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.225917

Filename

225917