Audio decoder for audio channel reconstruction
US11184709B2 · kind B2 · utility
3Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2020 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/03
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.