Reverberant speech enhancement using cepstral processing
- 1 January 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 15206149,p. 977-980 vol.2
- https://doi.org/10.1109/icassp.1991.150504
Abstract
Complex cepstral deconvolution is applied to acoustic dereverberation. It is found that traditional cepstral techniques fail in acoustic dereverberation because segmentation errors in the time domain prevent accurate cepstral computation. An algorithm for speech dereverberation which incorporates a novel approach to the segmentation and windowing procedure for speech is presented. Averaging in the cepstrum is exploited to increase the separation between the speech and impulse response. An estimate of the room impulse response is built, and a least squared error inverse filter is used to remove the estimated impulse response from the reverberant speech. Reduction of reverberation with this technique is demonstrated.Keywords
This publication has 5 references indexed in Scilit:
- Short-time homomorphic analysisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Speaking Clearly for the Hard of Hearing IIJournal of Speech, Language, and Hearing Research, 1986
- On the variation and invertibility of room impulse response functionsJournal of Sound and Vibration, 1985
- Image method for efficiently simulating small-room acousticsThe Journal of the Acoustical Society of America, 1979
- Nonlinear filtering of multiplied and convolved signalsIEEE Transactions on Audio and Electroacoustics, 1968