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

Tangsangiumvisai, N.; Chambers, Jonathon; Constantinides, A.G.

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

conference contribution

posted on 2010-01-08, 16:20 authored 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

Version

VoR (Version of Record)

Publication date

2002

Notes

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