Dialog enhancement using adaptive smoothing which depends exponentially on a smoothing factor
US12272376B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2020 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Sep 16, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of enhancing dialog intelligibility in an audio signal, comprising determining a speech confidence score that the audio content includes speech content, determining a music confidence score that the audio content includes music correlated content, in response to the speech confidence score, and applying a user selected gain of selected frequency bands of the audio signal to obtain a dialogue enhanced audio signal. The user selected gain is smoothed by an adaptive smoothing algorithm, an impact of past frames in said smoothing algorithm being determined by a smoothing factor, the smoothing factor being calculated in response to the music confidence score, and having a relatively higher value for content having a relatively higher music confidence score and a relatively lower value for speech content having a relatively lower music confidence score, so as to increase the impact of past frames on the dialogue enhancement of music correlated content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.