標題: | Speaker Adaptation of Speaking Rate-dependent Hierarchical Prosodic Model for Mandarin TTS |
作者: | Wang, Po-Chun Liao, I-Bin Chiang, Chen-Yu Wang, Yih-Ru Chen, Sin-Horng 電機學院 College of Electrical and Computer Engineering |
關鍵字: | speaker adaptation;hierarchical prosodic model;prosodic-acoustic features;Mandarin TTS |
公開日期: | 1-一月-2014 |
摘要: | In this paper, a speaker adaptation method to adapt an existing speaking rate-dependent hierarchical prosodic model (SR-HPM) of an SR-controlled Mandarin TTS system to new speaker's data for realizing a new voice is proposed. Two main problems are addressed: data sparseness for few adaptation utterances existing only in a small range of normal speaking rate and no adaptation data in both ranges of fast and slow speaking rates. The proposed method follows the idea of SR-HPM training to firstly normalize the prosodic-acoustic features of the new speaker's speech data, to then train an HPM by the prosody labeling and modeling algorithm, and to lastly refine the HPM to an SR-dependent model. The MAP adaptation method with model parameter extrapolation is applied to cope with the above two problems. Experimental results on a male speaker's adaptation data confirmed that the resulting adaptive SR-HPM has reasonable parameters covering a wide range of speaking rates and hence can be used in the TTS system to generate prosodic-acoustic features for synthesizing the new speaker's voice of any given SR. |
URI: | http://hdl.handle.net/11536/150638 |
期刊: | 2014 9TH INTERNATIONAL SYMPOSIUM ON CHINESE SPOKEN LANGUAGE PROCESSING (ISCSLP) |
起始頁: | 511 |
顯示於類別: | 會議論文 |