Methods and apparatus for processing spatialised audio
US6021206A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1996 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Oct 2, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an apparatus for sound reproduction of a sound information signal having spatial components, the apparatus includes: sound input means adapted to input the sound information signal; headtracking means for tracking a current head orientation of a listener listening to the sound information signal via sound emission sources and to produce a corresponding head orientation signal; sound information rotation means connected to the sound input means and the headtracking means and adapted to rotate said sound information signal to a substantially opposite degree to the degree of orientation of said current head orientation of the listener to produce a rotated sound information signal; and sound conversion means connected to the sound information rotation means for converting the rotated sound information signal to corresponding sound emission signals for outputting by the sound emission sources such that the spatial components of the sound information signal are substantially maintained in the presence of movement of the orientation of head of the listener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.