中文语音合成系统的客观评价方法 Objective Evaluation Method.pdf

OBJECTIVE EVALUATION METHOD FOR CHINESE TEXT-TO- SPEECH SYSTEM Wenhui LEI, BMW Group Technology Office China OUTLINE I. BACKGROUND II. OBJECTIVE III. IMPLEMENTATION IV. CONCLUSION SAECCE, 24.10.2017 Objective Evaluation method for Chinese Text-To-Speech System, BMW Group Technology Office China Page 2 BACKGROUND End of Sep. TEXT-TO-SPEECH (TTS) AND ITS APPLICATIONS IN VEHICLE Text Synthesized speech Hello everybody, welcome to BMW Group Technology Office China 大家好，欢迎来到宝马集团中国技术中心 大家好，欢迎来到宝马集团中国技术中心 Dialog Navigation Message QA Quality of synthesized speech is critical to Human-Machine-Interface experience SAECCE, 24.10.2017 Objective Evaluation method for Chinese Text-To-Speech System, BMW Group Technology Office China Page 3 BACKGROUND End of Sep. MEAN OPTION SCORE (MOS): SUBJECTIVE SYNTHESIZED SPEECH QUALITY EVALUATION METHOD Rating Label Excelle 5.0 nt 4.0 Good 3.0 Fair 2.0 Poor 1.0 Bad Labor-intensive Time-consuming Subjective Participant-dependent Non-reusable Unrepeatable SAECCE, 24.10.2017 Objective Evaluation method for Chinese Text-To-Speech System, BMW Group Technology Office China Page 4 OBJECT