Patent ID: 11929082
Assignee: DOLBY INTERNATIONAL AB
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A method in a decoder comprising the steps of:
receiving an audio bitstream and storing the received audio bitstream in one or more buffers,
selecting a decoding mode from a plurality of different decoding modes for decoding the received audio bitstream into one or more dynamic audio objects that are each to be rendered to a set of output audio channels, one or more static audio objects that are each to be rendered to the set of output audio channels, or a combination thereof, a dynamic audio object comprising a time-varying spatial position indicated by first metadata, and a static audio object comprising a static spatial position indicated by second metadata, the plurality of different decoding modes comprising a first decoding mode and a second decoding mode, wherein of the first and second decoding modes only the first decoding mode allows full decoding of one or more encoded dynamic audio objects in the bitstream into reconstructed individual dynamic audio objects that each comprise a respective time-varying spatial position;
operating a controller coupled to the one or more buffers in the selected decoding mode,
when the selected decoding mode is the second decoding mode, the method further comprises the steps of:
accessing, by the controller, the received audio bit stream;
determining, by the controller, whether the received audio bitstream includes one or more dynamic audio objects; and
responsive at least to determining that the received audio bitstream includes one or more dynamic audio objects, mapping, by the controller, at least one of the one or more dynamic audio objects to a set of static audio objects without fully decoding the at least one of the one or more dynamic audio objects into respective reconstructed individual dynamic audio objects as is performed in the first decoding mode, the set of static audio objects each corresponding to a channel of a predefined immersive speaker configuration.