SIGNAL CODING USING CODE WITH REGULARIZATION OF KEY TONES AND WITHOUT REGULARIZATION OF KEY TONES

摘要

1. A method for processing frames of an audio signal, said method comprising:! encode the first frame of the audio signal according to the coding scheme with regularization of the fundamental tones (PR); and! encode the second frame of the audio signal according to a coding scheme without PR,! in this case, the second frame follows and is subsequent to the first frame in the audio signal, and! wherein said coding of the first frame includes temporarily modifying, based on a time shift, a segment of a first signal that is based on a first frame, said temporal modifying including one of (A) temporarily shifting a segment of a first frame according to said time offset and (B) changing the time scale of the segment of the first signal based on said time offset, and! wherein said temporary modification of the segment of the first signal includes changing the position of the pulse of the pitch of the segment relative to another pulse of the pitch of the first signal, and! wherein said coding of the second frame includes temporarily modifying, based on a time shift, a segment of a second signal that is based on a second frame, said temporal modifying including one of (A) temporarily shifting a segment of a second frame according to said time offset and (B) changing the timeline of the segment of the second signal based on said time offset. ! 2. The method according to claim 1, wherein said encoding of the first frame includes creating a first encoded frame that is based on a temporarily modified segment of the first signal, and! P