Subband spatial and crosstalk processing using spectrally orthogonal audio components
US11032644B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system processes an audio signal using spectrally orthogonal sound components. The system includes a circuitry that generates a mid component and a side component from a left channel and a right channel of the audio signal. The circuitry generates a hyper mid component including spectral energy of the side component removed from spectral energy of the mid component, and generate a residual mid component including spectral energy of the hyper mid component removed from the spectral energy of the mid component. The circuitry filters subbands of the residual mid component, such as to apply a subband spatial processing. The circuitry generates a left output channel and a right output channel using the filtered subbands of the residual mid component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.