Methods and systems for determining audio loudness levels in programming
US7398207B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example of a method of correcting an audio level of a stored program asset comprises retrieving a stored program asset having audio encoded at a first loudness setting. Dialog of the audio of the asset is identified, a loudness of the dialog is determined and the determined loudness is compared to the first loudness setting. The asset is re-encoded at a second loudness setting corresponding to the determined loudness, if the first loudness setting and the second loudness are different by more than a predetermined amount. The determined loudness is preferably a DIALNORM of the dialog. The asset may be stored with the re-encoded loudness setting. The method may be applied to programs as they are being received from a source, as well. Aspects of the method may also be applied to programs to be provided by a source. Systems are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.