Method for controlling localization of sound image
US5404406A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1993 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Nov 30, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S1/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reproducing sounds from signals, which are supplied from a same sound source through a pair of localization filters by using a pair of transducers disposed apart from each other and for controlling the localization of a sound image in such a way to make a listener feel that he hears sounds from a virtual sound source which is localized at a desired sound image location being different from the positions of the transducers. When performing this method, a signal for measurement reproduced at each sound image location is measured at the listener's position as data to be used for estimating head-related transfer characteristics. Then, the head-related transfer characteristics corresponding to each sound image location are estimated from the measured data. Subsequently, transfer characteristics of the pair of the localization filters, which characteristics of which are necessary for localizing a sound image at each sound image location, are calculated on the basis of the estimated head-related transfer characteristics. Next, a scaling processing is performed to obtain the coefficients of the pair of the localization filters as an impulse response. Then, the coefficients obt…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.