Metadata for loudness and dynamic range control
US11563411B2 · kind B2 · utility
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0References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Mar 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G7/007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.