Audio level information recording/management method and audio output level adjustment method
US7496418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | May 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for audio level information recording/management and an audio output level adjustment can record or adjust in accordance with a recorded audio file level information. An audio file can be partitioned into a header information area, an audio data area, and a tag information area where audio file level information can be additionally recorded to indicate an output level of audio data to be reproduced. A digital audio system can check audio level information recorded in an audio file requested to be played and adjust the output level of audio data to be reproduced of the audio file on the basis of the checked audio level information additionally or in combination with a user entered audio volume level. Therefore, the output levels of audio data to be reproduced of respective audio files can be directly or automatically adjusted to a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.