Patent ID: 11955131
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. Audio decoder for decoding an encoded multi-channel audio signal comprising encoded channels and at least first and second multichannel parameters, comprising:
a channel decoder for decoding the encoded channels to acquire decoded channels; and
a multichannel processor for performing a multichannel processing using a second pair of the decoded channels identified by the second multichannel parameters and using the second multichannel parameters to acquire processed channels, and for performing a further multichannel processing using a first pair of channels identified by the first multichannel parameters and using the first multichannel parameters, wherein the first pair of channels comprises at least one processed channel,
wherein the encoded multi-channel audio signal comprises, for a first frame, the first and the second multichannel parameters and, for a second frame, following the first frame, a keep indicator, and
wherein the multichannel processor is configured to perform the multichannel processing and the further multichannel processing in the second frame to the same second pair and the same first pair of channels as used in the first frame.