Adaptive noise reduction using discrimination functions

Walter Etter, George S. Moschytz, Daniel Graupe

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

A method of noise reduction based on discrimination function minimization (DFM) is presented. This method requires the definition of a function that discriminates clean from noisy speech. A particular discrimination function is derived for a certain type of noise, such that the minimization of this function reduces the noise in the noisy speech signal. The DFM noise reduction method does not assume stationarity of the noise over an entire speech period. It is shown how an abrupt change in piecewise-stationary noise can be tracked. The method has been successfully applied to the reduction of automobile noise.

Original languageEnglish
Title of host publicationProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Editors Anon
PublisherPubl by IEEE
Pages965-968
Number of pages4
ISBN (Print)078030033
StatePublished - 1991
EventProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91 - Toronto, Ont, Can
Duration: 14 May 199117 May 1991

Publication series

NameProceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
Volume2
ISSN (Print)0736-7791

Conference

ConferenceProceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
CityToronto, Ont, Can
Period14/05/9117/05/91

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