Apparatus and method for calculating driving coefficients for loudspeakers of a loudspeaker arrangement for an audio signal associated with a virtual source
US9161147B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2012 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Mar 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for calculating driving coefficients for loudspeakers of a loudspeaker arrangement for an audio signal associated with a virtual source includes a multi-channel renderer. The multi-channel renderer calculates driving coefficients for loudspeakers of the loudspeaker arrangement based on a first calculation rule, if a position of the virtual source is located outside the loudspeaker transition zone. Further, the multi-channel renderer calculates driving coefficients for loudspeakers of the loudspeaker arrangement based on a second calculation rule, if a position of the virtual source is located within the loudspeaker transition zone. A border of the loudspeaker transition zone includes a minimal distance to a loudspeaker of the loudspeaker arrangement depending on a distance between the loudspeaker and a loudspeaker adjacent to this loudspeaker. Further, the loudspeaker arrangement includes at least two pairs of adjacent loudspeakers with different distances between the loudspeakers of the respective pair of loudspeakers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.