Method for processing audio data and sound acquisition device implementing this method
US7706543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/11
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention concerns the processing of audio data. The invention is characterized in that it consists in: (a) encoding signals representing a sound propagated in three-dimensional space and derived from a source located at a first distance (P) from a reference point, to obtain a representation of the sound through components expressed in a spherical harmonic base, of origin corresponding to said reference point, (b) and applying to said components compensation of a near-field effect through filtering based on a second distance (R) defining, for sound reproduction, a distance between a reproduction point (HPi), and a point (P) of auditory perception where a listener is usually located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.