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Speech Recognition for Evaluation of phonetic Fundtion in Prosthodontic Treatment at the Dental Chair-side

牙科椅旁修复治疗中语音识别的语音功能评估

基本信息

批准号：
17592016
负责人：
HIDESHIMA Masayuki
金额：
$ 2.24万
依托单位：
Tokyo Medical and Dental University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17592016/
关键词：
dental chair-side evaluation of phonetic function speech recognition multiple acoustic feature planes phonetic segment labels prosthodontic treatment incisal overjet S curved palatal contour 補綴処置音節

项目摘要

Phonetic function is the most important oral function for human communication. Conventional speech evaluating methods require plural estimators or special equipment and environment, are time-, and it is difficult to show the results of the assessments instantly. Hence, we developed a new evaluating system using speech recognition, which allows quantitative assessment of. the intelligibility of spoken sounds at the dental chair-side.Each sound was recorded with a head-set type microphone and a laptop computer. The acoustic time-frequency pattern of each sound was accentuated in local changes in the frequency and time directions, and the pattern of multiple acoustic-feature planes (MAFP) was extracted. We proposed a speech recognition based on 213 types of integrated phonetic segments representing phoneme and inter-phoneme features. The system performed macro-period quantitative syllable evaluation using the ratio between the correct and incorrect integrated phonetic segment label number … More s during the periods of evaluated syllables.The test sound was determined as the syllable [Shi], which is the post-alveolar fricative consonant. And the test word was selected as [iShimatsu] or [iShikawa], which included the test sound as the second syllable.Using this new system, we analyzed the relationship with the incisal overjet or the augmentation of the palatal contour in a maxillary denture and the phonetic functions.By increasing the incisal overjet in 5 subjects, correct pronunciation of [Shi] became difficult, and in 4 mm overjet relative to that of the dentures already in use showed significant decrease in numbers of correct labels.In 6 complete denture wearers, the palatal contour at the incisal portion augmented horizontally from 2 to 4 mm represented significant increase in numbers of correct labels.It is suggested that speech evaluation at the time of trial arrangement in wax dentures is expected to be useful for fabricating the final denture without speech disorders.Since the intelligibility can be expressed by the appearance ratio of the correct labels in this mechanical system and almost no differences arise from variation of auditory perception ability among listeners, it can be said that objective and quantifiable assessments can be made. Less

语音功能是人类交际中最重要的口语功能。传统的语音评价方法需要多个评价器或专用的设备和环境，且评价时间长，难以即时显示评价结果。因此，我们开发了一个新的评估系统，使用语音识别，它允许定量评估。在牙科椅旁的说话声音的清晰度。每个声音都用耳机式麦克风和笔记本电脑记录下来。在频率和时间方向的局部变化中强调每个声音的声学时频模式，并提取多个声学特征平面（MAFP）的模式。我们提出了一种基于213种代表音素和音素间特征的集成语音段的语音识别方法。该系统利用正确与错误的集成音段标号数之比进行宏观周期的定量音节评价 ...更多信息测试音被确定为音节[Shi]，它是一个后齿龈擦音辅音。本研究选择了[iShimatsu]或[石川]作为测试词，并将测试音作为第二音节，利用这个新系统分析了上颌义齿中切牙覆盖或腭部轮廓的增加与语音功能的关系，发现5名受试者增加切牙覆盖后，[Shi]的正确发音变得困难，在6例全口义齿戴用者中，结果表明，腭部轮廓在水平方向上从2 mm增加到4 mm时，正确标记的数量显著增加，这表明在试验时的语音评价由于可理解度可以用该机械系统中正确标签的出现率来表示，并且几乎没有因听者的听觉感知能力变化而产生的差异，因此可以说可以进行客观和可量化的评估。少