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Time-varying allpass filters using spectral-shaped noise for signal decorrelation in stereophonic acoustic echo cancellation

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conference contribution
posted on 08.01.2010, 16:20 by N. Tangsangiumvisai, Jonathon Chambers, A.G. Constantinides
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.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

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

Publisher

© IEEE

Version

VoR (Version of Record)

Publication date

2002

Notes

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.

ISBN

0780375033

Language

en