VOS: the Corpus-Based etnamese Text-to-Speech System
Vo Quang Ha, Nguyễn Mạnh Tuấn, Cao Xuan Nam, Pham Minh Nhut, Vũ Hải Quân · Research and Development on Information and Communication Technology · 2010
This paper presents a complete specification of the Vietnamese speech synthesis system named VOS (Voice of Southern Vietnam). Due to the fact that current Vietnamese text-to-speech systems lack the naturalness of output synthetic speech, VOS is based on the unit selection approach which aims to achieve maximum naturalness. There are three main parts constituting VOS: a corpus manager, a synthesizer, and a transliteration model. Corpus manager manages automated speech indexing and segmentation for unit selection executed by the synthesizer, while transliteration model deals with the pronunciation of words in foreign languages. A comparative experimental evaluation of VnSpeech, VietVoice, and VOS is conducted using ITU-T P.85 standard. Results show that VOS outperforms the former two TTS systems.