Sound field controlling apparatus
US8098841B2 · kind B2 · utility
5Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2006 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Nov 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R27/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound field controlling apparatus for a public-address system comprises a microphone that picks up a sound of a speaker, a loudspeaker that sound a sound signal based on the sound picked up by the microphone, a sound source position detector that detects a position of a sound source, and a signal processor that controls a level, delay time and equalizing property of the sound signal output to the loudspeaker in accordance with the sound source position detected by the sound source position detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.