DocumentCode
1360006
Title
Low distortion speech enhancement
Author
Soon, I.Y. ; Koh, S.N.
Author_Institution
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Volume
147
Issue
3
fYear
2000
fDate
6/1/2000 12:00:00 AM
Firstpage
247
Lastpage
253
Abstract
An innovative approach to speech enhancement is illustrated which minimises distortion to the underlying speech during the noise-reduction process. The key to this approach lies in the identification of whether the additive noise for a particular frequency component is constructive or destructive. Once this can be identified both multiplicative and subtractive filters can be derived using the minimum mean-square error criterion. The optimal combination of the proposed multiplicative and subtractive filter is also shown
Keywords
discrete Fourier transforms; discrete cosine transforms; filtering theory; music; noise; speech enhancement; DCT domain; DFT domain; KLT; constructive additive noise; destructive additive noise; frequency component; low distortion speech enhancement; minimum mean-square error criterion; multiplicative filter; musical tones; noise-reduction process; noisy speech; real transforms; subtractive filter; wavelet transform;
fLanguage
English
Journal_Title
Vision, Image and Signal Processing, IEE Proceedings -
Publisher
iet
ISSN
1350-245X
Type
jour
DOI
10.1049/ip-vis:20000323
Filename
852306
Link To Document