Patent ID: 11967330
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 9:
10. A method for processing a modified bitstream in MPEG-4 audio format by a sink device comprising a receiver, a bitstream parser, a core decoder, a mixer, wherein the method includes the steps of:
a) receiving, by the receiver, a modified bitstream including coded media data, payload of additional uncompressed PCM audio data and an MPEG-4 audio bitstream extension mechanism, wherein the MPEG-4 audio bitstream extension mechanism is a data stream element (DSE);
b) parsing, by the bitstream parser, the modified bitstream into the coded media data and the payload of additional uncompressed PCM audio data, wherein the parsing is based on identifying the MPEG-4 audio bitstream extension mechanism in the modified bitstream;
c) core decoding, by the core decoder, the coded media data to obtain core decoded media data;
d) mixing, by the mixer, the core decoded media data and the additional uncompressed PCM audio data to obtain an output signal; and
e) outputting the output signal.