Patent ID: 8761410
Filing Date: 2014-06-24
Classification: H04M

Abstract:
1. A method for reducing reverberation within an acoustic signal, the method comprising: receiving a first acoustic signal and a second acoustic signal; separating the first acoustic signal into first acoustic sub-band signals and separating the second acoustic signal into second acoustic sub-band signals; determining an energy level of reverberation components in the first acoustic sub-band signals based on a correlation between the first and second acoustic sub-band signals; determining an energy level of speech components in the first acoustic sub-band signals based on the determined energy level of the reverberation components, the determining the energy level of the speech components comprising forming a noncorrelation signal by suppressing a portion of each of the first acoustic sub-band signals correlated with the second acoustic sub-band signals, the noncorrelation signal indicating the energy level of the reverberation components; determining a signal modification, comprising: