Systems and methods for multi-dialog surround audio
AssigneeSRS Labs, Inc.
InventorAlan D. Kraemer
Life of this patent
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Abstract
Systems and processes for transmission of multi-channel audio from a sender to one or more recipients. Multi-channel audio is encoded with a plurality of different dialog channels. The encoded multi-channel audio and dialog channels can be compressed to facilitate transmission with limited bandwidth. A recipient can select a desired dialog channel from the plurality of dialog channels transmitted. A receiver side decoder can reconstruct a multi-channel audio with the selected dialog for playback. The plurality of dialog options can include different languages, different dialects, different accents, and/or different viewpoints/biases.
Claims20
A process for communicating multi-channel audio data, the process comprising:
- encoding with a first audio matrix encoder, a first plurality of surround audio channels to create a first pair of encoded audio channels, wherein the first pair of encoded audio channels have the first plurality of surround audio channels encoded therein;
- encoding with a second audio matrix encoder, the first pair of encoded audio channels with a plurality of different language channels to create a second pair of encoded audio channels, wherein the second pair of encoded audio channels have the first plurality of surround audio channels and the plurality of different language channels encoded therein;
- transmitting the second pair of encoded audio signals from a sender to a recipient;
- decoding with a first matrix decoder the second pair of encoded audio signals to generate the first pair of encoded audio signals and the plurality of different language channels;
- decoding with a second matrix decoder the first pair of encoded audio signals to generate the first plurality of surround audio channels;
- selecting at least one of the different language channels;
- and
- mixing the at least one selected language channel with the decoded surround audio channels to obtain a second plurality of surround audio channels, the second plurality of surround audio channels including the selected language channel.
A multi-channel audio transmission system comprising:
- a first sender multi-channel encoder executing in one or more processors, wherein the first sender multi-channel encoder is configured to encode a plurality of surround audio channels to create a first pair of encoded channels, wherein the first pair of encoded channels have the first plurality of surround audio channels encoded therein;
- and
- a second multi-channel encoder executing on one or more processors, wherein the second multi-channel encoder is configured to encode the first pair of encoded channels with a plurality of different dialog channels to create a second pair of encoded channels, wherein the second pair of encoded channels have the first plurality of surround audio channels and the plurality of different dialog channels encoded therein.
A multi-channel audio transmission system comprising:
- first means for encoding a first plurality of surround audio channels to create a first pair of encoded channels, wherein the first pair of encoded channels have the first plurality of surround audio channels encoded therein;
- second means for encoding the first pair of encoded channels with a plurality of different dialog channels to create a second pair of encoded channels, wherein the second pair of encoded channels has the first plurality of surround audio channels and the plurality of different dialog channels encoded therein.
Dependencies are inferred from the claim text.