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Study on Development of Language Learning System for Japanese Speech Using Acoustic Analysis and CD-ROM

利用声学分析和CD-ROM的日语语音学习系统的开发研究

基本信息

批准号：
09558022
负责人：
JOUJI Miwa
金额：
$ 2.3万
依托单位：
IWATE UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09558022/
关键词：
CALL Language Learning Japanese Speech Acoustic Analysis CD-ROM Internet CAI

项目摘要

We have developed two systems of computer assisted language learning (CALL) for Japanese speech using acoustic analysis and CD-ROM. The systems are called as LESSON/J (Japanese Language Education System for Speech on an On-demand Network) and PAL/J (Portable Advanced Learning System for Japanese).The on-demand network system is now available on the World Wide Web server, the URL is http://sp.cis.iwate-u.ac.jp/sp/lesson/j/index.html, since in June 1997. The network system was accessed about 60,000 times from 80 countries for three years. The rate of the accesses from foreign countries is about 70%. The top 5 countries for accesses in order are U.S.A, Canada, Italy. Australia and Korea.The portable system is consisting of a general notebook computer, an audio headphone and CD-ROM. The portable system is used by foreign students in a lecture room, student's home and other places. Some learner is ashamed of his wrong answer in the lecture rooms, but is not in private using the portable system. It is one of advantages for the portable language learning system.The evaluation systems of pronunciation for Japanese accent and special morae are also developed using acoustic analysis method. In the system for special morae, the duration length of special mora of the learner was automatically estimated using a method of dynamic programming in the speech recognition technology. Then, quality level of the special mora is calculated using a new normalized function for the duration length. The type of accent is automatically recognized using relative position of accent and decay of fundamental frequency.

我们使用声学分析和 CD-ROM 开发了两种日语语音计算机辅助语言学习 (CALL) 系统。这些系统被称为LESSON/J（日语点播网络语音教育系统）和PAL/J（日语便携式高级学习系统）。自1997年6月以来，点播网络系统现已在万维网服务器上可用，URL为http://sp.cis.iwate-u.ac.jp/sp/lesson/j/index.html。该网络系统已被来自80个国家的约60,000次访问。三年。国外访问率约为70%。访问量排名前 5 的国家依次为美国、加拿大、意大利。澳大利亚和韩国。便携式系统由普通笔记本电脑、音频耳机和CD-ROM组成。该便携式系统供外国学生在教室、学生家里等场所使用。有些学习者为自己在课堂上的错误答案感到羞耻，但私下里却不会使用便携式系统。这是便携式语言学习系统的优点之一。还利用声学分析方法开发了针对日语口音和特殊音节的发音评估系统。在特殊音节系统中，利用语音识别技术中动态规划的方法自动估计学习者特殊音节的持续时间长度。然后，使用新的持续时间长度归一化函数来计算特殊音节的质量水平。使用重音的相对位置和基频的衰减来自动识别重音的类型。