Evaluation of microphone arrays for enhancing noisy and reverberant speech for coding

Author

Li, Zhao ; Hoffman, Michael W.

Author_Institution

Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA

Volume

7

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

91

Lastpage

95

Abstract

A robustly constrained minimum variance adaptive array algorithm for general noise suppression and subsequent speech coding is applied in realistic room environments. The results indicate that the robust algorithm is suitable for enhancing speech for subsequent coding. Results also show that the array processing gains are transparent to a CELP coder but not necessarily to an LPC-10 coder

Keywords

acoustic transducer arrays; adaptive signal processing; architectural acoustics; array signal processing; linear predictive coding; microphones; reverberation; speech coding; speech enhancement; speech intelligibility; CELP coder; LPC-10 coder; array processing gains; constrained minimum variance adaptive array algorithm; intelligibility gains; microphone arrays; noise suppression; noisy speech; reverberant speech; reverberation; robust algorithm; room environments; speech coding; speech enhancement; Adaptive arrays; Array signal processing; Microphone arrays; Noise reduction; Noise robustness; Speech analysis; Speech coding; Speech enhancement; Speech processing; Working environment noise;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/89.736335

Filename

736335