Methods, apparatus and systems for 6dof audio rendering and data representations and bitstream structures for 6dof audio rendering
AssigneeDolby International AB
InventorsLeon TERENTIV, Christof FERSCH, Daniel FISCHER
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Abstract
The present disclosure relates to methods, apparatus and systems for encoding an audio signal into a bitstream, in particular at an encoder, comprising: encoding or including audio signal data associated with 3DoF audio rendering into one or more first bitstream parts of the bitstream, and encoding or including metadata associated with 6DoF audio rendering into one or more second bitstream parts of the bitstream. The present disclosure further relates to methods, apparatus and systems for decoding an audio signal and audio rendering based on the bitstream.
Claims20
(canceled)
A system comprising:
- a receiver for receiving a bitstream which comprises audio signal data associated with 3DoF audio rendering in one or more first bitstream parts of the bitstream, wherein the audio signal data associated with 3DoF audio rendering includes audio signals of one or more audio sources, and further comprising metadata associated with 6DoF audio rendering in one or more second bitstream parts of the bitstream;
- and
- a processor for performing 6DoF audio rendering based on the received bitstream, wherein the audio signal data associated with 3DoF audio rendering is processed based on a transform function, wherein the transform function maps or projects the audio signals of the one or more audio sources onto respective audio objects positioned on at least a sphere surrounding a default 3DoF listener position such that applying an inverse of the transform function permits to restore or approximate audio signals for 6DoF audio rendering.
A method comprising:
- receiving a bitstream which comprises audio signal data associated with 3DoF audio rendering in one or more first bitstream parts of the bitstream, wherein the audio signal data associated with 3DoF audio rendering includes audio signal data of one or more audio sources, and further comprising metadata associated with 6DoF audio rendering in one or more second bitstream parts of the bitstream;
- and
- performing 6DoF audio rendering based on the received bitstream, wherein the audio signal data associated with 3DoF audio rendering is processed based on a transform function, wherein the transform function maps or projects the audio signals of the one or more audio sources onto respective audio objects positioned on at least a sphere surrounding a default 3DoF listener position such that applying an inverse of the transform function permits to restore or approximate audio signals for 6DoF audio rendering.
Dependencies are inferred from the claim text.