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A Filter Structure for Low Delay Noise Suppression

Authors:
Löllmann, H. W.Vary, P.
Book Title:
ITG-Fachtagung Sprachkommunikation
Publisher:
VDE Verlag
Address:
Kiel, Germany
Date:
Apr. 2006
Language:
English

Abstract

Many noise suppression systems are based on (short-term) spectral-domain filtering by using an analysis-synthesis filter-bank. This filtering technique causes a relatively high signal delay as a filter-bank for the analysis and synthesis part is needed. In this contribution, a filter structure with a significantly lower signal delay is presented. The proposed low delay filter achieves a higher amount of noise reduction than an analysis-synthesis filter-bank with the same signal delay.

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