Method for interpolating a sound field, corresponding computer program product and device
US11736882B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Aug 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for interpolating a sound field captured by a plurality of N microphones each outputting the encoded sound field in a form including at least one captured pressure and an associated pressure gradient vector. Such a method includes an interpolation of the sound field at an interpolation position outputting an interpolated encoded sound field as a linear combination of the N encoded sound fields each weighted by a corresponding weighting factor. The interpolation includes an estimation of the N weighting factors at least from: the interpolation position; a position of each of the N microphones; the N pressures captured by the N microphones; and an estimated power of the sound field at the interpolation position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.