Spatial extent modeling for volumetric audio sources
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorWerner De Bruijn
Life of this patent
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Abstract
A method (800) for rendering an audio source for a listener. The method comprises obtaining (s802) a spatial extent value indicating a spatial extent of the audio source and obtaining (s804) a distance value specifying a distance between the audio source and the listener. The method also comprises determining (s806) whether the distance value is smaller than a threshold distance value. The method further comprises as a result of determining that the distance value is smaller than the threshold distance value, rendering (s808) to the listener the audio source using an effective spatial extent value.
Claims25
A method for rendering an audio source for a listener, the method comprising:
- obtaining at least a first spatial extent value indicating a first spatial extent of the audio source;
- obtaining a distance value specifying a distance between the audio source and the listener;
- determining whether the distance value satisfies a criterion, wherein
- determining whether the distance value satisfies the criterion comprises determining whether the distance value is not greater than a threshold distance value, and
- the threshold distance value is a function of the first spatial extent value;
- and
- as a result of determining that the distance value satisfies the criterion, rendering to the listener the audio source using an effective spatial extent value, wherein the effective spatial extent value is a function of the distance value.
An apparatus for rendering an audio source for a listener, the apparatus comprising:
- a memory;
- and
- processing circuitry coupled to the memory, wherein the processing circuitry is configured to cause the apparatus to:
- obtain a spatial extent value indicating a spatial extent of the audio source;
- obtain a distance value specifying a distance between the audio source and the listener;
- determine whether the distance value satisfies a criterion, wherein
- determining whether the distance value satisfies the criterion comprises determining whether the distance value is not greater than a threshold distance value, and
- the threshold distance value is a function of the spatial extent value;
- and
- as a result of determining that the distance value satisfies the criterion, render to the listener the audio source using an effective spatial extent value, wherein the effective spatial extent value is a function of the distance value.
An apparatus for rendering an audio source for a listener, the apparatus comprising:
- a memory;
- and
- processing circuitry coupled to the memory, wherein the processing circuitry is configured to cause the apparatus to:
- obtain a size value, L, indicating a geometrical size of an extent of the audio source;
- obtain a distance value, D, specifying a distance between the audio source and the listener;
- based on L and D, set an effective spatial extent value equal to either a first value or a second value;
- and
- render to the listener the audio source using the effective spatial extent value, wherein
- the apparatus is configured to set the effective spatial extent value to the first value if D is not greater than a threshold, wherein the threshold is a function of L, otherwise the apparatus sets the effective spatial extent value to the second value.
Dependencies are inferred from the claim text.