The effect that cross-correlation between stereo signals has on a stereo echo canceller is studied and a new stereo projection echo canceller is proposed that can identify the true echo path impulse responses. This echo canceller accelerates filter coefficient error convergence by adding the variations in the cross-correlation to stereo signals or by utilizing the fact that the cross-correlation between stereo signals varies slightly in actual teleconferencing situations. Computer simulations demonstrate that this echo canceller can reduce the filter coefficient error much faster than a conventional stereo normalized least mean squares (NLMS) echo canceller.
|ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
|Published - 1995
|Proceedings of the 1995 20th International Conference on Acoustics, Speech, and Signal Processing. Part 2 (of 5) - Detroit, MI, USA
継続期間: 1995 5月 9 → 1995 5月 12
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