Mixed speech recognition
US9390712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The claimed subject matter includes a system and method for recognizing mixed speech from a source. The method includes training a first neural network to recognize the speech signal spoken by the speaker with a higher level of a speech characteristic from a mixed speech sample. The method also includes training a second neural network to recognize the speech signal spoken by the speaker with a lower level of the speech characteristic from the mixed speech sample. Additionally, the method includes decoding the mixed speech sample with the first neural network and the second neural network by optimizing the joint likelihood of observing the two speech signals considering the probability that a specific frame is a switching point of the speech characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.