Sound system
US5883961A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Mar 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of synthesizing a set of filters comprises locating first and second loudspeakers at first and second locations, respectively, coupling a first component of an audio program to the first loudspeaker to be reproduced thereby, and coupling a second component of the audio program to the second loudspeaker to be reproduced thereby. First and second microphones are placed at third and fourth locations, respectively, at which the reproduced first and second audio components are to be heard in order to convert audio impinging upon the first and second microphones into first and second microphone signals, respectively. A first set of transfer functions is developed from the first and second components of the audio program and the first and second microphone signals. One loudspeaker is then located at a fifth location different from one of the first and second locations. The first component is then coupled to the first loudspeaker, and the second component to the second loudspeaker. Third and fourth microphone signals are developed from the first and second components impinging on the first and second microphones, respectively. A second set of transfer functions is developed from t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.