Signal processing method
US12382236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2023 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Feb 6, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal processing method transforms X input signals into M output signals. The method includes applying a decorrelation filter to the X input signals so as to generate N decorrelated signals ei; and for each decorrelated signal ei determined, generating N delayed signals ei,k by applying a delay τk and a gain gk to each decorrelated signal ei, the delays τk and the gains gk being chosen. For each decorrelated signal ei, the delayed signals ei,k simulate a propagation of the decorrelated signal in a virtual space. The virtual space has N virtual loudspeakers and a virtual listening position that are distributed according to a predetermined geometry. For each value of k, summing the delayed signals ei,k: Ek=Σi=1Nei,k; and determining M output signals, each output signal resulting from a linear combination of the N sums of the delayed signals Ek.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.