- Authors:
-
Vary,
P.
- Journal:
- (SIGPRO)
- Volume:
- 86
- Page(s):
- 1206-1214
- number:
- 6
- Date:
-
Jun. 2006
- Note:
Special Issue on Applied Speech and Audio Processing (dedicated to Prof. Hänsler)
- Language:
- English
Abstract
A digital filter structure is proposed for fixed or adaptive spectral modification of speech and audio signals, which is derived from a reference filter bank. Main applications are audio equalization and noise reduction. The signal is filtered in the time domain, while the filter coefficients are calculated in the (short-term) frequency domain. In comparison to the usual short-term spectral-domain processing, the proposed structure exhibits distinct advantages with respect to signal delay, prototype-filter design, and complexity. The algorithm allows for uniform, as well as for non-uniform spectral resolution.
Download
BibTeX
