Audio spatial rendering apparatus and method
AssigneeDolby Laboratories Licensing Corporation
InventorsXuejing Sun, Gary Spittle
Life of this patent
Estimating the term…
Abstract
An audio spatial rendering apparatus and method are disclosed. In one embodiment, The audio spatial rendering apparatus includes a rendering unit for spatially rendering an audio stream so that the reproduced far-end sound is perceived by a listener as originating from at least one virtual spatial position, a real position obtaining unit for obtaining a real spatial position of a real sound source, a comparator for comparing the real spatial position with the at least one virtual spatial position; and an adjusting unit for, where the real spatial position is within a predetermined range around at least one virtual spatial position, or vice versa, adjusting the parameters of the rendering unit so that the at least one virtual spatial position is changed.
Claims14
An audio spatial rendering apparatus comprising:
- a rendering unit for spatially rendering an audio stream so that the reproduced far-end sound is perceived by a listener as originating from at least one virtual spatial position;
- a real position obtaining unit for obtaining a real spatial position of a real sound source;
- a comparator for comparing the real spatial position with the at least one virtual spatial position;
- and
- an adjusting unit for, when the real spatial position is within a first predetermined range around at least one virtual spatial position, or vice versa, adjusting the parameters of the rendering unit so that the at least one virtual spatial position is changed, wherein the adjusting unit is configured not to adjust the parameters of the rendering unit when the real spatial position is inside a second predetermined range of a near-end microphone array.
An audio spatial rendering method comprising:
- obtaining at least one virtual spatial position from which a reproduced far-end sound to be spatially rendered from an audio stream is perceived by a listener as originating;
- obtaining a real spatial position of a real sound source;
- comparing the real spatial position with the at least one virtual spatial position;
- adjusting, when the real spatial position is within a first predetermined range around at least one virtual spatial position, or vice versa, adjusting the parameters of the rendering unit so that the at least one virtual spatial position is changed, wherein the adjusting unit is configured not to adjust the parameters of the rendering unit when the real spatial position is inside a second predetermined range of a near-end microphone array;
- and
- spatially rendering the audio stream based on the parameters.
A non-transitory computer-readable medium having computer program instructions recorded thereon, when being executed by a processor, the instructions enabling the processor to execute an audio spatial rendering method comprising:
- obtaining at least one virtual spatial position from which a reproduced far-end sound to be spatially rendered from an audio stream is perceived by a listener as originating;
- obtaining a real spatial position of a real sound source;
- comparing the real spatial position with the at least one virtual spatial position;
- adjusting, when the real spatial position is within a first predetermined range around at least one virtual spatial position, or vice versa, adjusting the parameters of the rendering unit so that the at least one virtual spatial position is changed, wherein the adjusting unit is configured not to adjust the parameters of the rendering unit when the real spatial position is inside a second predetermined range of a near-end microphone array;
- and
- spatially rendering the audio stream based on the parameters.
Dependencies are inferred from the claim text.