Sound image localization control apparatus
US5598478A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1993 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Dec 20, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound image localization control apparatus provided with a pair of convolvers for performing a convolution operation on signals sent from a common sound source, a storage unit for storing groups of coefficients of localization filters (namely, impulse responses) corresponding to each of locations of sound images and a coefficient supply unit for supplying the coefficients corresponding to a designated location of a sound image to the convolvers. The sound image localization control apparatus can make a listener feel as if sound images are localized in a large space as subtending a visual angle of more than 180 degrees at his eye. The sound image localization control apparatus is further provided with a synchronization unit for localizing a sound image in synchronization with an image reproduced on the screen of a monitor. The sound image localization control apparatus can provide virtual reality with more realistic presence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.