Patent ID: 8706479

Claim:
A method for performing packet loss concealment (PLC) in a sub-band codec, comprising: receiving a plurality of sub-band signals generated by decoding an encoded audio signal; combining the sub-band signals to generate a full-band audio signal; and responsive to determining that a frame of the encoded audio signal is lost: applying a PLC algorithm to the full-band audio signal to generate a PLC output signal; and generating a full-band output audio signal based on the PLC output signal, wherein generating the full-band output audio signal based on the PLC output signal comprises processing the PLC output signal in an analysis filter bank to produce a plurality of re-encoded sub-band signals and combining the re-encoded sub-band signals to generate the full-band output audio signal, wherein at least one of the receiving, combining, applying and generating steps is performed by a processor or an integrated circuit.