Driving parametric speakers as a function of tracked user location
US-2015382129-A1 · Dec 31, 2015 · US
Processing of sound data encoded in a sub-band domain
US8976972B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8976972-B2 |
| Application number | US-201013500955-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 8, 2010 |
| Priority date | Oct 12, 2009 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or Transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspeakers: a first transfer function specific to an ipsilateral path from the loudspeaker to a first ear of the listener, facing the loudspeaker, and a second transfer function specific to a contralateral path from said loudspeaker to the second ear of the listener, masked from the loudspeaker by the listener's head. The matrix filtering comprises a multiplicative coefficient defined by the spectrum, in the sub-band domain, of the second transfer function deconvolved with the first transfer function.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for processing sound data encoded in a sub-band domain, for dual-channel playback of binaural or Transaural® type, wherein a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation, said sound representation with N channels consisting in considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspe…
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Physics · mapped topic
- H04S1/002Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8976972B2 cover?
- Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or Transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, fo…
- Who is the assignee on this patent?
- Emerit Marc, Nicol Rozenn, Pallone Grégory, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04S1/002. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).