US 2024/0406669 A1 · Metadata for Spatial Audio Rendering

Abstract

The various aspects of the disclosure here enable a content creation side to control how discrete audio objects that make up a sound program are rendered by a decoding side to achieve greater realism, while enabling the decoder side to also control the rendering process to consider the positions and orientations of the objects as virtual sound sources relative to the listener. The same sound program can thus be optimally rendered by a variety of decoder side formats, such as binaural on headphone, cross-talked cancelled binaural on a stereo pair of speakers embedded in a device, or multichannel on an immersive loudspeaker layout, e.g., planar such as 5.1 and 7.1 surround sound layouts, 3D such as 7.1.4 or 22.2, etc. Other aspects are also described and claimed.

Claims21

Dependent claims

A decoding side method for spatial audio rendering using metadata, the method comprising:

decoding a plurality of audio objects, a plurality of channels, or an HOA representation of a sound program from a bitstream;
and
receiving metadata of the sound program, wherein the metadata comprises
a first message that instructs a decoding side process on whether to apply scene reverberation during playback of the sound program i) on a per audio object basis or on a group multiple objects from the plurality of audio objects, ii) on a per channel basis or on a group of multiple channels from the plurality of channels, or iii) on the HOA representation.

1 more element

An electronic device comprising:

at least one processor;
and
memory having instructions stored therein which when executed by the at least one processor causes the electronic device to:
decode a plurality of audio objects, a plurality of channels, or an HOA representation of a sound program from a bitstream;
and
receive metadata of the sound program, wherein the metadata comprises
a first message that instructs a decoding side process on whether to apply scene reverberation during playback of the sound program i) on a per audio object basis or on a group multiple objects from the plurality of audio objects, ii) on a per channel basis or on a group of multiple channels from the plurality of channels, or iii) on the HOA representation.

4 more elements

Dependencies are inferred from the claim text.

Metadata for Spatial Audio Rendering

Life of this patent

Metadata for Spatial Audio Rendering

Life of this patent

Abstract

Claims21