Patent · US Active

Device for level correction in a wave field synthesis system

US7751915B2 · kind B2 · utility

7Cited by

4References

18Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Thomas Roeder · Redmond, US
Thomas Sporer · Ergolding, DE

Key dates

Filing date	Oct 31, 2005
Grant date	Jul 6, 2010
Priority date	—
Expiry date	Oct 22, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2420/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

For a level correction in a wave field synthesis system having a wave field synthesis module and an array of loudspeakers for providing sound to a presentation region, a correction value which is based on a set amplitude state in a presentation region is determined, the set amplitude state depending on a position of the virtual source or a type of the virtual source, and the actual amplitude state in the presentation region depending on the component signals for the loudspeakers due to the virtual source. The correction value determined is fed to a manipulator manipulating the audio signal associated to the virtual source before feeding to the wave field synthesis module, or the component signals for the individual loudspeakers due to the virtual source are manipulated to reduce a deviation between a set amplitude state and an actual amplitude state at one point or several in the presentation region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.