Title :
Comb filtering of noisy speech using overlap-and-add approach
Author_Institution :
Dept. of Electron. Eng., Nat. I-Lam Inst. of Agric. & Technol., Taiwan
fDate :
1/8/1998 12:00:00 AM
Abstract :
A new type of comb filter is presented to enhance speech based on an overlap-and-add approach. The filter taps are altered and smoothed according to the degree of periodicity in speech. Objective measures including the segmental SNR and cepstral distance are carried out for performance evaluation. Improvements in the SNR in the range 0-20 dB are observed
Keywords :
filtering theory; interference (signal); speech enhancement; cepstral distance; comb filtering; filter taps smoothing; noisy speech; overlap/add approach; performance evaluation; segmental SNR;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980107
