Back to results
US 11,962,996 B2Granted
Audio rendering of audio sources
AssigneeTelefonaktiebolaget LM Ericsson
InventorWerner De Bruijn
Life of this patent
Estimating the term…
Abstract
Providing a more natural, physically accurate rendering of the acoustic behavior of a volumetric audio source (e.g., a line-like audio source). In one embodiment, this is achieved by applying a parametric distance-dependent gain function in the rendering process, where the shape of the parametric gain function depends on characteristics of the volumetric audio source.
Claims30
A method for rendering an audio source, the method comprising:
- obtaining a distance value representing a distance between a listener and the audio source;
- based on the distance value, selecting from among a set of two or more gain functions a particular one of the two or more gain functions;
- evaluating the selected gain function using the obtained distance value to obtain a gain value to which the obtained distance value is mapped by the selected gain function;
- and
- providing the obtained gain value to an audio source renderer configured to render the audio source using the obtained gain value and/or rendering the audio source using the obtained gain value, wherein
- the set of gain functions comprises at least a first gain function and a second gain function, and
- selecting a particular one of the two or more gain functions based on the distance value comprises comparing the distance value to a first threshold and selecting a particular one of the two or more gain functions based at least in part on the comparison,
- the audio source has an associated length, and
- the first threshold is a function of the associated length.
6 more elements
An apparatus, the apparatus comprising:
- memory;
- and
- processing circuitry comprising a processor, wherein the apparatus is configured to perform a method comprising:
- obtaining a distance value representing a distance between a listener and the audio source;
- based on the distance value, selecting from among a set of two or more gain functions a particular one of the two or more gain functions;
- evaluating the selected gain function using the obtained distance value to obtain a gain value to which the obtained distance value is mapped by the selected gain function;
- and
- providing the obtained gain value to an audio source renderer configured to render the audio source using the obtained gain value and/or rendering the audio source using the obtained gain value, wherein
- the set of gain functions comprises at least a first gain function and a second gain function, and
- selecting a particular one of the two or more gain functions based on the distance value comprises comparing the distance value to a first threshold and selecting a particular one of the two or more gain functions based at least in part on the comparison,
- the audio source has an associated length (L), and
- the first threshold is a function of the associated length.
9 more elements
Dependencies are inferred from the claim text.