Patent ID: 8538038

Claim:
A method comprising: (a) when a mute interval of an audio signal is detected, activating one of a plurality of concealment generators to form a concealment signal and activating a timer, each concealment generator utilizing a different concealment technique; (b) while the mute interval continues and when the timer equals a predetermined activation time, activating a different concealment generator of the plurality of concealment generators and deactivating a previously activated concealment generator to extend the concealment signal; (c) repeating (b) while the mute interval continues; (d) adding the concealment signal when there is a gap in the audio signal during the mute interval, wherein: the concealment signal replaces the audio signal during at least a portion of the mute interval; and the concealment signal is independent of knowledge about the audio signal after the mute interval; and (e) when the mute interval ends, deactivating a currently activated concealment generator.