Spatial calibration of surround sound systems including listener position estimation
US9426598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/303
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for calibrating a surround sound system is disclosed. The method utilizes a microphone array integrated in a front center loudspeaker of the surround sound system or a soundbar facing a listener. Positions of each loudspeaker relative to the microphone array can be estimated by playing a test signal at each loudspeaker and measuring the test signal received at the microphone array. The listener's position can also be estimated by receiving the listener's voice or other sound cues made by the listener using the microphone array. Once the positions of the loudspeakers and the listener's position are estimated, spatial calibrations can be performed for each loudspeaker in the surround sound system so that listening experience is optimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.