Patent ID: 8560307

Claim:
A method of processing an encoded audio signal, said method comprising: decoding a first plurality of encoded frames of the encoded audio signal according to a first coding scheme to obtain a first decoded audio signal that includes a speech component and a context component; decoding a second plurality of encoded frames of the encoded audio signal according to a second coding scheme to obtain a second decoded audio signal, wherein the bit rate or coding mode of the first coding scheme differs from the bit rate or coding mode of the second coding scheme; based on information from the second decoded audio signal, suppressing the context component from a third signal that is based on the first decoded audio signal to obtain a context-suppressed signal; and calculating a level of the second decoded audio signal, and, based on the calculated level, controlling the level of an audio context signal mixed with a signal that is based on the context-suppressed signal to obtain a context-enhanced signal.