Systems and methods for enhancing voice quality in mobile device
US8311817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are methods and systems for enhancing the quality of voice communications. The method and corresponding system may involve classifying an audio signal into speech, and speech and noise and creating speech-noise classification data. The method may further involve sharing the speech-noise classification data with a speech encoder via a shared memory or by a Least Significant Bit (LSB) of a Pulse Code Modulation (PCM) stream. The method and corresponding system may also involve sharing acoustic cues with the speech encoder to improve the speech noise classification and, in certain embodiments, sharing scaling transition factors with the speech encoder to enable the speech encoder to gradually change data rate in the transitions between the encoding modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.