Audio spatial environment engine
US7929708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2004 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Aug 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio spatial environment engine for converting from an N channel audio system to an M channel audio system, where N is an integer greater than M, is provided. The audio spatial environment engine includes one or more correlators receiving two of the N channels of audio data and eliminating delays between the channels that are irrelevant to an average human listener. One or more Hilbert transform systems each perform a Hilbert transform on one or more of the correlated channels of audio data. One or more summers receive at least one of the correlated channels of audio data and at least one of the Hilbert transformed correlated channels of audio data and generate one of the M channels of audio data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.