Domain adaptation for TTS systems
US7328157B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | May 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L13/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention pertain to adaptation of a corpus-driven general-purpose TTS system to at least one specific domain. The domain adaptation is realized by adding a limited amount of domain-specific speech that provides a maximum impact on improved perceived naturalness of speech. An approach for generating optimized script for adaptation is proposed, the core of which is a dynamic programming based algorithm that segments domain-specific corpus into a minimum number of segments that appear in the unit inventory. Increases in perceived naturalness of speech after adaptation are estimated from the generated script without recording speech from it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.