Vocal source extraction by maximum phase detection
US9105272B2 · kind B2 · utility
0Cited by
0References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 4, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Sep 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/03
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus and computer program products implement embodiments of the present invention that include receiving a time domain voice signal, and extracting a single pitch cycle from the received signal. The extracted single pitch cycle is transformed to a frequency domain, and the misclassified roots of the frequency domain are identified and corrected. Using the corrected roots, an indication of a maximum phase of the frequency domain is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.