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A study of sensory substitute systems based on biomedical acoustics

基于生物医学声学的感觉替代系统研究

基本信息

批准号：
06402067
负责人：
IFUKUBE Tohru
金额：
$ 17.73万
依托单位：
HOKKAIDO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1996
项目状态：
已结题

项目摘要

The purpose of this research is to create sensory substitute systems based on biomedical acoustics. The research results are shows as follows.1. A new tactile aide method for the deaf was proposed. In this method, speech spectral patterns were swept on a fingertip as convex patterns for vowels and vibration patterns for consonants. This method was proven to dramatically increase the speech recognition rate.2. An electro-larynx which has a function of intonation control by using expiration pressure was designed for people who have lost their larynx. This prosthesis was found to be very beneficial in producing normal sounding speech. This was developed for practical use in cooperation with an electronic company.3. A tinnitus suppresser which stimulates the cochlear nerves was designed and some effects of the electrical stimulation to the cochlea were made clear. We have implanted the tinnitus suppresser for seven patients. It was proven that they could suppress the tinnitus by themselves whenever the tinnitus appeared.4. The mechanism of obstacle sense of the blind was clarified based on psychophysical experiments. The obstacle sense was found to be explained by the following phenomena : preceding effect, correlation of two sound signals obtained from both ears, and coloration. The findings will be applied to rehabilitation for the blind.5. A voice typewriter was designed for the acquired deaf. In the voice typewriter, 68 Japanese monosyllabic voices were converted into Japanese letters. It's response time was 0.2 sec and the recognition rate was about 96%. The prototype of the voice typewriter was developed about 17 years ago. However, the prototype was too expensive for the deaf to buy. In the research, we could improve on the design of a small and cheap voice typewriter for practical use.

本研究的目的是建立基于生物医学声学的感觉替代系统。主要研究成果如下：1.研究成果。提出了一种新的聋人触觉辅助方法。在该方法中，语音频谱模式被扫描到指尖上，作为元音的凸起模式和辅音的振动模式。实验证明，该方法能显著提高语音识别率。一种具有呼气压力控制语调功能的电子喉头，是为失去喉咙的人而设计的。这种假体被发现在产生正常发音方面非常有益。这是与一家电子公司合作开发的实用产品。设计了一种刺激耳蜗神经的耳鸣抑制器，明确了电刺激对耳蜗神经的影响。我们已经为7名患者植入了耳鸣抑制器。事实证明，每当耳鸣出现时，它们都能自行抑制耳鸣。通过心理物理实验，阐明了盲人障碍感的产生机制。障碍感被认为是由以下现象解释的：前置效应、双耳获得的两个声音信号的相关和颜色。这一发现将应用于盲人的康复。语音打字机是为后天聋人设计的。在语音打字机中，68个日语单音节语音被转换为日语字母。它的响应时间为0.2秒，识别率约为96%。语音打字机的原型是大约17年前开发出来的。然而，原型机太贵了，聋人买不起。在研究中，我们可以改进设计出一款小巧廉价的实用语音打字机。

项目成果

期刊论文数量（43）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

J. Matsushima, T. Ifukube et al: "Surgical method for implanted tinnitus suppresser" International Tinnitus Journal. 2(1). 21-25 (1996)

J. Matsushima、T. Ifukube 等人：“植入耳鸣抑制器的手术方法”国际耳鸣杂志。

DOI：
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通讯作者：

松島純一,熊谷雅彦,高橋邦宏,犬山征夫,三好茂樹,伊福部達: "埋め込み式耳鳴抑制装置の信号電送システムについて" 日耳鼻会報. 97. 661-667 (1994)

Junichi Matsushima、Masahiko Kumagai、Kunihiro Takahashi、Masao Inuyama、Shigeki Miyoshi、Tatsu Ifukube：“关于植入式耳鸣抑制装置的信号传输系统”Nippon Otolaryngology Bulletin 97. 661-667 (1994)。