Patent ID: 8255207

Claim:
A method for concealing frame erasures caused by frames of an encoded sound signal erased during transmission from an encoder to a decoder and for recovery of the decoder after frame erasures, the method comprising, in the decoder: receiving from the encoder concealment/recovery parameters including at least phase information related to frames of the encoded sound signal, wherein the phase information comprises a position of a glottal pulse in each frame of the encoded sound signal; conducting frame erasure concealment in response to the received concealment/recovery parameters, wherein: the frame erasure concealment comprises resynchronizing, in response to the received phase information, the erasure-concealed frames with corresponding frames of the encoded sound signal; and resynchronizing an erasure-concealed frame with a corresponding frame of the encoded sound signal comprises: determining, in the erasure-concealed frame, a position of a maximum amplitude pulse; and aligning the position of the maximum amplitude pulse in the erasure-concealed frame with the position of the glottal pulse of the corresponding frame of the encoded sound signal.