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Séminaire de Mme Nguyen Thi Thu Trang, doctorante de l'Institut MICA - Date : 28 juin 2013, 9h00 - Lieu : Salle "seminar", 9ème étage, Institut MICA, Hanoi University of Science and Technology
Mme Nguyen Thi Thu Trang, doctorante en co-tutelle entre l'Institut MICA et le LIMSI.
Date : vendredi 28 juin 2013, 9h00
Lieu : Salle "Seminar room", 9ème étage, bâtiment B1, Institut MICA, Hanoi University of Science and Technology
Interprète traducteur : le séminaire sera présenté en anglais
- Quick summarisation of my work in LIMSI in 5 months
- Quick presentation of my paper in the Interspeech 2013: This paper presents the development and evaluation of an HMM-based TTS system for the modern Hanoi dialect of Northern Vietnamese, a tonal language. A study of specific phonetic and prosodic features of Hanoi Vietnamese is discussed. Consequences on the design of an HMM-based TTS system are derived. Using this knowledge, a TTS system, called VTed, is then developed under the Mary TTS platform. The second part of the paper is devoted to perceptual evaluations of Vietnamese speech synthesis. Three kinds of evaluations are considered necessary for quality assessment of this tonal language. The general MOS assessment, utterance- level intelligibility, and tone-level intelligibility tests are conducted on the VTed system under a “natural speech reference” condition. The results show 1.21 points difference between natural and synthetic speech for the MOS test, a 0.2% – 0.9% difference for the utterance-level intelligibility test, 23% on average and – depending on the tone type – from 0% to 37% difference for the tone-level intelligibility test. These results demonstrate the need for more specific works on tonal/prosodic level to improve automatic synthesis of Vietnamese and other tonal languages.