Study and implementation of intelligent e-Learning system for modern spoken chinese

This paper aims at the implementation of online e-learning system for spoken Chinese based on the approach of natural language processing. The system is composed of four components: text analysis, prosody estimation, selection of synthesis units, speech generation module. The corpora, dictionary and speech database are generated. More than 4000 monosyllabic speech units of Chinese and several silences with various durations have been recorded as basic synthesis units. Twelve college students with frequent speaking ability evaluated the synthesized speech for the quality of energy and speech intelligibility. The satisfaction results for the testing achieve 8.09 and 7.63, respectively. Based on the comprehensive evaluation, it is obvious that our intelligent system can provide real speech with natural quality and helpful lexical information on Internet.