Pitch marking in speech processing
US9685170B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2015 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/013
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to some embodiments of the present invention, there is provided a computerized method for selecting and correcting pitch marks in speech processing and modification. The method comprises an action of receiving a continuous speech signal representing audible speech recorded by a microphone, where a sequence of pitch values and two or more pitch mark temporal values are computed from the continuous speech signal. The method comprises an action of computing for each of the pitch mark temporal values a lower limit temporal value and an upper limit temporal value by a cross-correlation function of the continuous speech signal around the pitch mark temporal values associated with pairs of elements in the sequence and replacing one or more of the pitch mark temporal values with one or more new temporal value between the lower limit temporal value and the upper limit temporal value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.