Soundstage-conserving audio channel summation
US10993061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio system provides for soundstage-conserving channel summation. The system includes circuitry that generates a first rotated component and a second rotated component by rotating a pair of audio signal components. The circuitry generates left quadrature components that are out of phase with each other using the first rotated component and generates right quadrature components that are out of phase with each other using the second rotated component. The circuitry generates orthogonal correlation transform (OCT) components based on the left and right quadrature components. Each OCT component including a weighted combination of a left quadrature component and a right quadrature component. The circuitry generates a mono output channel using one or more of the OCT components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.