关键词: 维吾尔语音合成, 单音素, 三音素, 韵律参数模型, 单元挑选

Abstract: Syllable is the smallest pronunciation unit in Uighur language and the basic synthesis unit in conventional Uighur speech synthesis system. However, the number of syllable is unlimited and speech corpus hardly includes all possible syllables, therefore speech synthesis performances with syllable units are unstable and discontinuous. To solve the instability of synthetic speech, this paper proposes a unit selection algorithm that combines the phoneme and triphone unit. Best prosodic matching unit is selected and discontinuity of synthetic speech is solved by adding the prosodic parameter matching method into unit selection stage. The evaluation results show that the proposed method improves the naturalness of synthetic speech.

Key words: Uighur speech synthesis, phoneme, triphone, prosodic model, unit selection