Artifact reduction in time compression
US8996389B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Dec 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/93
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various techniques are disclosed for reducing artifacts generated by time compression. by adapting the time compression based on the state of the received audio. The amount of time compression may be bounded based on audio characteristics. Another feature provides a way of determining the most correlated portions of segments of audio. Voiced speech may be distinguished from unvoiced speech. Another feature provides a way of distinguishing between silence, voiced speech, and unvoiced speech. Time compression may be adapted during periods of lengthy silence. Another feature allows for reducing time compression during sensitive portions of the received audio. One or more of these features may be present in different embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.