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Title: Time-varying allpass filters using spectral-shaped noise for signal decorrelation in stereophonic acoustic echo cancellation
Authors: Tangsangiumvisai, N.
Chambers, Jonathon
Constantinides, A.G.
Keywords: Acoustic signal processing
All-pass filters
Echo suppression
Spectral analysis
Speech processing
Time-varying filters
Issue Date: 2002
Publisher: © IEEE
Citation: TANGSANGIUMVISAI, N., CHAMBERS, J. and CONSTANTINIDES, A.G., 2002. Time-varying allpass filters using spectral-shaped noise for signal decorrelation in stereophonic acoustic echo cancellation. IN: IEEE 14th International Conference on Digital Signal Processing, 1-3 July, Volume 2, pp. 1273 - 1276
Abstract: In this paper, a signal decorrelation technique is presented that aims to minimise the degradation on stereo signal perception, whilst alleviating the non-uniqueness problem in stereophonic acoustic echo cancellation (SAEC). The proposed technique is based on higher-order time-varying allpass filters (HO-TV-APF) utilising spectral-shaped noise, together with the interpolation method. The test results on real speech signals indicate improved performance in both objective and subjective manners.
Description: This is a conference paper [© IEEE]. It is also available from: http://ieeexplore.ieee.org/servlet/opac?punumber=7978. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Version: Published
DOI: 10.1109/ICDSP.2002.1028325
URI: https://dspace.lboro.ac.uk/2134/5767
ISBN: 0780375033
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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