Comfort noise generation for multi-mode spatial audio coding
US12400668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Aug 23, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for generating comfort noise is provided. The method includes providing a first set of background noise parameters N1 for at least one audio signal in a first spatial audio coding mode and a second set of background noise parameters N2 for the at least one audio signal in a second spatial audio coding mode. The first spatial audio coding mode is used for active segments; the second spatial audio coding mode is used for inactive segments. The method further includes adapting the first set of background noise parameters N1 to the second spatial audio coding mode, thereby providing a first set of adapted background noise parameters {circumflex over (N)}1. The method further includes generating comfort noise parameters by combining {circumflex over (N)}1 and N2 over a transition period. The method further includes generating comfort noise based on the comfort noise parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.