Transformed higher order ambisonics audio data
AssigneeQUALCOMM Incorporated
InventorsNils Günther Peters, Dipanjan Sen, Martin James Morrell
Life of this patent
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Abstract
In general, techniques are described for obtaining one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors generated at least by performing a transformation with respect to a plurality of spherical harmonic coefficients.
Claims30
A method comprising:
- obtaining, by an audio decoding device, one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors representative of a plurality of spherical harmonic coefficients descriptive of the soundfield, and generated at least by performing a transformation with respect to the plurality of spherical harmonic coefficients;
- rendering, by the audio decoding device, one or more loudspeaker feeds based on the one or more first vectors and the one or more second vectors;
- and
- outputting, by the audio decoding device, the loudspeaker feeds.
A device comprising:
- one or more processors configured to:
- determine one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors representative of a plurality of spherical harmonic coefficients descriptive of the soundfield, and generated at least by performing a transformation with respect to the plurality of spherical harmonic coefficients;
- render one or more loudspeaker feeds based on the one or more first vectors and the one or more second vectors;
- and
- output the one or more loudspeaker feeds.
A device comprising:
- means for obtaining one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors representative of a plurality of spherical harmonic coefficients descriptive of the soundfield, and generated at least by performing a transformation with respect to the plurality of spherical harmonic coefficients;
- and
- means for storing the one or more first vectors;
- means for rendering one or more loudspeaker feeds based on the one or more first vectors and the one or more second vectors;
- and
- means for outputting the loudspeaker feeds.
A non-transitory computer-readable storage medium having stored thereon instructions that, when executed, cause one or more processors of an audio decoding device to:
- obtain one or more first vectors describing distinct components of a soundfield and one or more second vectors describing background components of the soundfield, both the one or more first vectors and the one or more second vectors representative of a plurality of spherical harmonic coefficients descriptive of the soundfield, and generated at least by performing a transformation with respect to the plurality of spherical harmonic coefficients;
- render one or more loudspeaker feeds based on the one or more first vectors and the one or more second vectors;
- and
- output, to one or more loudspeakers, the loudspeaker feeds.
Dependencies are inferred from the claim text.