Signal processing apparatus for enhancing a voice component within a multi-channel audio signal
US10210883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2017 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S5/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal processing apparatus for enhancing a voice component within a multi-channel audio signal comprising a left channel audio signal, a center channel audio signal, and a right channel audio signal, the signal processing apparatus comprising a filter and a combiner; wherein the filter is configured to determine an overall magnitude of the multi-channel audio signal over frequency based on the multi-channel audio signal, to obtain a gain function based on a ratio between a magnitude of the center channel audio signal and the overall magnitude of the multi-channel audio signal, and to weight the left channel audio signal, the center channel audio signal, and the right channel audio signal by the gain function; and wherein the combiner is configured to combine individually the left channel audio signal, the center channel audio signal, and the right channel audio signal with the weighted right channel audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.