Method and apparatus for measuring and correcting acoustic characteristic in sound field
US4739513A · kind A · utility
50Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1985 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | May 31, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/307
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The acoustic transmission characteristics of a sound field, such as in the passenger compartment of a vehicle, are measured by placing microphones at the positions of ears of a dummy mannequin having a sound absorbing characteristic similar to that of a clothed adult human. The transmission characteristics are then corrected, such as with an automatic graphic equalizer, to provide optimized listening conditions inside the sound field for an actual listener. The use of the invention results in a listener's perception of completely natural sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.