Fast waveform synchronization for concentration and time-scale modification of speech
US7058569B2 · kind B2 · utility
234Cited by
15References
50Claims
0Family size
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Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L13/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A synthesis method for concatenative speech synthesis is provided for efficiently concatenating waveform segments in the time-domain. A digital waveform provider produces an input sequence of digital waveform segments. A waveform concatenator concatenates the input segments by using waveform blending within a concatenation zone to synchronize, weight, and overlap-add selected portions of the input segments to produce a single digital waveform. The synchronizing includes determining a minimum weighted energy anchor in the selected portion of each input segment and aligning synchronization peaks in a local vicinity of each anchor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.