Patent ID: 9111544
Filing Date: 2015-08-18
Classification: G10L,H04R

Abstract:
1. A method for compensating an audio signal components of an audio signal provided infirst and second channels, comprising: receiving a sound signal from a microphone array; detecting the audio signal component of the sound signal; in response to the detected audio signal component of the sound signal, generating an echo compensated sound signal to compensate acoustic echoes in the sound signal due to the detected audio signal component, where the generating comprises: outputting to a comparison unit a first output associated with a first signal power from the mono echo compensation unit; outputting to the comparison unit a second output associated with a second signal power from the multi-channel echo compensation unit; comparing the first signal power and the second signal power in the comparison unit; selecting the first output if the first signal power is smaller than the second signal power; selecting the second output if the second signal power is smaller than the first signal power; and outputting the selected one of the first and second outputs for transmission to one or more loudspeakers.