Patent ID: 8958572
Filing Date: 2015-02-17
Classification: H04R

Abstract:
1. A method for suppressing noise, the method comprising: receiving a primary acoustic signal, a first secondary acoustic signal and a second secondary acoustic signal; forming a first noise reference signal by suppressing a first speech component sub-band in the first secondary acoustic signal correlated with a speech component sub-band in the primary acoustic signal, the forming of the first noise reference signal further including suppressing a further first speech component sub-band in the first secondary acoustic signal correlated with a second speech component sub-band in the second secondary acoustic signal; forming a second noise reference signal by suppressing the second speech component sub-band in the second secondary acoustic signal correlated with the speech component sub-band in the primary acoustic signal, the forming of the second noise reference signal further including suppressing a further second speech component sub-band in the second secondary acoustic signal correlated with the first speech component sub-band in the first secondary acoustic signal; and reducing an energy level of a noise component sub-band in the primary acoustic signal based on the first and the second noise reference signals.