Cepstrum based deconvolution for speech dereverberation

Author

Petropulu, Athina P. ; Subramaniam, Suresh

Author_Institution

Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA

fYear

1994

fDate

19-22 Apr 1994

Abstract

We propose an algorithm for the restoration of speech that has been degraded through addition of multiple echoes. The proposed scheme processes the outputs of two microphones using cepstra operations and the theory of signal reconstruction from phase only. Under mild assumptions it reconstructs the room impulse response associated with each microphone and restores the speech signal. We demonstrate the performance of the proposed scheme using speech reverberated by simulated room acoustics

Keywords

cepstral analysis; deconvolution; reverberation; signal reconstruction; signal restoration; speech enhancement; speech recognition; transient analysis; transient response; algorithm; cepstra operations; cepstrum based deconvolution; degradation; multiple echoes; room impulse response; signal reconstruction; simulated room acoustics; speech dereverberation; speech restoration; speech signal; Acoustic distortion; Cepstrum; Deconvolution; Degradation; Delay effects; Loudspeakers; Microphones; Optical reflection; Signal restoration; Speech recognition;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.389368

Filename

389368