Method and device for adjusting audio signal, and audio system
US10965265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | May 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/025
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and a device for adjusting an audio signal, and an audio system are provided. The method includes: obtaining a candidate audio signal (S1); obtaining a current noise signal in an environment (S2); calculating a first plurality of difference values in loudness between the candidate audio signal and the current noise signal (S3); modifying the first plurality of difference values with a plurality of target factors, where the plurality of target factors are obtained based on a plurality of test noise signals and a corresponding plurality of test audio signals (S4); and modifying the candidate audio signal with the modified first plurality of difference values to obtain a target audio signal (S5). Therefore, loudness loss of the audio signal perceived due to the noise signal can be compensated, and an overcompensation issue can be solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.