Automatic volume leveling
US10461712B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Sep 25, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/025
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Devices and techniques are generally described for automatic volume leveling of an audio signal. An audio signal may be received and a first portion of the audio signal may be stored in a buffer. A root mean square (RMS) estimate of a level of the first portion of the audio signal may be determined based at least in part on a second portion of the audio signal previous to the first portion. A modified audio signal may be generated by multiplying the first portion of the audio signal in the buffer by a variable gain. The variable gain may be based at least in part on the RMS estimate. The modified audio signal may be sent to a loudspeaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.