System and method for automatic multiple listener room acoustic correction with low filter orders
US7567675B2 · kind B2 · utility
36Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Nov 3, 2003 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Nov 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and a method for correcting, simultaneously at multiple-listener positions, distortions introduced by the acoustical characteristics includes warping room responses, intelligently weighing the warped room acoustical responses to form a weighted response, a low order spectral fitting to the weighted response, forming a warped filter from the low order spectral fit, and unwarping the warped filter to form the room acoustical correction filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.