Patent ID: 11967330
Assignee: DOLBY INTERNATIONAL AB
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A method for generating a modified bitstream in MPEG-4 audio format by a source device, the source device comprising a receiver and an embedder, wherein the method includes the steps of:
a) receiving, by the receiver, a bitstream including coded media data;
b) generating, by the embedder, payload of additional uncompressed PCM audio data and embedding the payload in the bitstream for obtaining, as an output from the embedder, a modified bitstream including the coded media data and the payload of the additional uncompressed PCM audio data, wherein the generated payload is embedded in the bitstream by transporting the payload in the modified bitstream via an MPEG-4 audio bitstream extension mechanism, wherein the MPEG-4 audio bitstream extension mechanism is a data stream element (DSE); and
c) outputting the modified bitstream to the sink device.