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An investigation for the development of the miniature speech analysis device for linguistic fieldwork

语言学田野用微型语音分析装置的研制研究

基本信息

批准号：
09551013
负责人：
DANTSUJI Masatake
金额：
$ 3.78万
依托单位：
Kyoto 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 2000
项目状态：
已结题

项目摘要

We have researched on development of speech analysis software, which is appropriate for fieldwork, and collected and edited the speech data of various languages for the research. We have constructed a system which corrects the errors of informant speech by comparing with the model pronunciation stored in database, having analyzed acoustically and processed it with speech recognition techniques. We have also studied on the method of normalization of various individual data. In general, the absolute values of formants and pitches are extremely influenced by the features of vocal tract and sound source, such as the length of vocal tract and the thickness of vocal cords. Considering that we have examined the normalization of more diverse data such as formant and pitch information for better comparison by means of the present method. We have on the other hand, made a research for a fast data processing method, which includes sound filing and sound labeling in order to make a speech database instantly after recording in the field. We have attempted to roconstruct the image of vocal tract on charts and cross sections based on the acoustic analysis of the informants' speech. Particularly, we have attempted to process graphically and present the images of reconstructed vocal tract, which contain tongue positions and lip forms based on the acoustically analyzed vowel sounds. We have also reinforced the processing techniques of prosodic information such as pitch, fundamental frequency (FO). etc, and attempted to process and present them as scattered data. In addition, we have attempted to enable the speech analysis device to capture only the real pitch and even follow the abrupt pitch changes. Finally, we have made an additional consideration on the collected sound data from the phonological point of view, based on the phonetic description of them.

我们研究开发了适合于野外工作的语音分析软件，并收集和编辑了各种语言的语音数据。我们建立了一个系统，通过与数据库中存储的模型发音进行比较，对模型发音进行声学分析，并利用语音识别技术进行处理，从而纠正了被试语音的错误。我们还研究了各种个体数据的归一化方法。一般来说，共振峰和音高的绝对值受声道和声源的特征影响很大，如声道的长度和声带的厚度。考虑到我们已经检查了更多样化的数据（例如共振峰和音高信息）的归一化，以便通过本方法进行更好的比较。另一方面，我们研究了一种快速的数据处理方法，包括声音归档和声音标注，以便在现场录音后立即建立语音数据库。我们试图根据对线人语音的声学分析，在图表和横截面上重建声道图像。特别是，我们已经尝试以图形方式处理并呈现重建声道的图像，其中包含基于声学分析的元音的舌位置和唇形。我们还加强了音调、基频（FO）等韵律信息的处理技术。等，并试图将它们处理和呈现为分散的数据。此外，我们已经尝试使语音分析设备能够仅捕获真实的音高，甚至跟随突然的音高变化。最后，在语音描写的基础上，从音系学的角度对所收集到的语音资料进行了补充性的思考。