Title :
Cepstrum based deconvolution for speech dereverberation
Author :
Petropulu, Athina P. ; Subramaniam, Suresh
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389368
