Adaptive filter for reconstruction of stereo audio signals

Krzysztof Cisowski

doi:10.1117/12.548161

25 May 2004 Adaptive filter for reconstruction of stereo audio signals

Krzysztof Cisowski

Proceedings Volume 5473, Noise in Communication; (2004) https://doi.org/10.1117/12.548161
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

The paper presents a new approach to reconstruction of impulsively disturbed stereo audio signals. The problems of restoration of large blocks of missing samples are outlined. Present methods of removing of covariance defect are discussed. Model of stereophonic signal is defined and Kalman filter appropriate for this model is introduced. Modifications of the filter directing to the new method of reconstruction of block of missing samples are discussed. Projection based algorithm allows to recover samples of left (or right) stereo channel using additional information included in undistorted samples from the other channel.

Citation Download Citation

Krzysztof Cisowski "Adaptive filter for reconstruction of stereo audio signals", Proc. SPIE 5473, Noise in Communication, (25 May 2004); https://doi.org/10.1117/12.548161

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