Loudspeaker system for virtual sound synthesis
US8194868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Mar 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound system obtains a desired sound field from an array of sound sources arranged on a panel. The desired sound field allows a listener to perceive the sound as if the sound were coming from a live source and from a specified location. Setup of the sound system includes arranging a microphone array adjacent the array of sound sources to obtain a generated sound field. Arbitrary finite impulse response filters are then composed for each sound source within the array of sound sources. Iteration is applied to optimize filter coefficients such that the generated sound field resembles the desired sound field so that multi-channel equalization and wave field synthesis occur. After the filters are setup, the microphones may be removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.