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Nonlinear acoustic echo control using an accelerometer
2009
2009 IEEE International Conference on Acoustics, Speech and Signal Processing
A typical echo canceller uses an FIR adaptive filter to estimate the impulse response of the near-end echo path. However nonlinear echo components due to the loudspeaker and driving amplifier are not captured by such an arrangement. We propose a novel scheme for nonlinear acoustic echo cancellation where an accelerometer sensor captures loudspeaker vibration and this sensor signal is used along with the error signal to adapt the adaptive filter coefficients. The accelerometer sensor is used in
doi:10.1109/icassp.2009.4959833
dblp:conf/icassp/GuptaSS09
fatcat:bz5jarjv3jd6jkq34kdi5qyz4e