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US 11,445,299 B2Granted
Rendering binaural audio over multiple near field transducers
AssigneeDolby Laboratories Licensing Corporation
InventorsMark F. Davis, Nicolas R. Tsingos, C. Phillip Brown
Life of this patent
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Abstract
An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.
Claims16
A method of rendering audio, the method comprising:
- receiving a spatial audio signal, wherein the spatial audio signal includes position information for rendering audio;
- processing the spatial audio signal to determine a plurality of weights based on the position information;
- rendering the spatial audio signal to form a plurality of rendered signals, wherein the plurality of rendered signals are amplitude weighted according to the plurality of weights, and wherein the plurality of rendered signals includes a plurality of binaural signals that are amplitude weighted according to the plurality of weights;
- combining the plurality of rendered signals into a joint rendered signal;
- generating metadata that relates the joint rendered signal to the plurality of rendered signals;
- and
- providing the joint rendered signal and the metadata to a loudspeaker system.
4 more elements
An apparatus for rendering audio, the apparatus comprising:
- a processor;
- and
- a memory;
- and
- a loudspeaker system comprising a left front loudspeaker, a right front loudspeaker, a left rear loudspeaker and a right rear loudspeaker,
- wherein the processor is configured to receive a spatial audio signal, wherein the spatial audio signal includes position information for rendering audio,
- wherein the processor is configured to process the spatial audio signal to determine a plurality of weights based on the position information, and
- wherein the processor is configured to render the spatial audio signal to form a plurality of rendered signals, wherein the plurality of rendered signals are amplitude weighted according to the plurality of weights, and wherein the plurality of rendered signals includes a plurality of binaural signals that are amplitude weighted according to the plurality of weights,
- wherein the left front loudspeaker is configured to output a left channel of a front binaural signal of the plurality of binaural signals, the right front loudspeaker is configured to output a right channel of the front binaural signal, the left rear loudspeaker is configured to output a left channel of a rear binaural signal of the plurality of binaural signals, and the right rear loudspeaker is configured to output a right channel of the rear binaural signal,
- wherein the plurality of weights correspond to a front-back perspective applied to the left front loudspeaker and the left rear loudspeaker, and applied to the right front loudspeaker and the right rear loudspeaker.
7 more elements
Dependencies are inferred from the claim text.