Recording and playback of multi-channel digital audio having different resolutions for different channels
AssigneeWarner Music Group, Inc.
InventorsAlan McPherson, Gregory Thagard, Edwin Outwater III, Christopher Cookson
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Abstract
Methods and apparatus for recording on DVD-like recording media in which audio content is stored in a high-capacity multi-channel (e.g., six-channel) format are provided. Various channels may use various resolutions. A two-channel audio output may be derived from the multi-channel audio data stream during playback. To facilitate an accurate derivation, the mixing coefficients to be used in generating the derivation can be supplied along with the six-channel audio data.
Claims4
A method for providing multi-channel digital audio signal samples on a software carrier comprising:
- sampling a first plurality of channels of audio data;
- sampling a second plurality of channels of audio data;
- selectively encoding said first plurality of channels of audio data in a single stream in a first track on said software carrier;
- and
- selectively encoding said second plurality of channels of audio data in a single stream in a second track on said software carrier.
A method for providing multi-channel digital audio signal samples on a software carrier comprising:
- sampling a first plurality of channels of audio data;
- sampling a second plurality of channels of audio data;
- selectively encoding said first plurality of channels of audio data in a single stream in a first track on said software carrier;
- and
- providing weighting information for deriving said second plurality of channels of audio data from said first plurality of channels of audio data.
Dependencies are inferred from the claim text.