Method and apparatus for environmental noise compensation by determining a presence or an absence of an audio event
US9711162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Sep 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of environmental noise compensation a speech audio signal is provided that includes estimating a fast audio energy level and a slow audio energy level in an audio environment, wherein the speech audio signal is not part of the audio environment, and applying a gain to the speech audio signal to generate an environment compensated speech audio signal, wherein the gain is updated based on the estimated slow audio energy level when the estimated fast audio energy level is not indicative of an audio event in the audio environment and the estimated gain is not updated when the estimated fast audio energy level is indicative an audio event in the audio environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.