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Research on the development of a portable digital hearing aid

便携式数字助听器的研制研究

基本信息

批准号：
03557072
负责人：
SONE Toshio
金额：
$ 8.06万
依托单位：
TOHOKU University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

项目摘要

The purpose of this research is to develop a portable digital hearing aid system which realize the method proposed by us, and to evaluate the system. In this method, the spectrum of the input signal is transferred into the remaining audible range of the sensorineural hearing impaired listeners by compensating luck of loudness in each narrow band, and is expected to improve the intelligibility of the impaired listeners greatly.1. Development of the algorithm and software which realize the above method in a portable hearing aid : A low-powered DSP chip, Motorola DSP-56156 was selected as a CPU in the system. The software for DSP-56156 was developed, which realize the above method in real time.2. Development of the portable digital hearing aid : The system was designed by us and was developed by Ono Sokki Co., Ltd. The system measures 23x87x138 mm and can be used for four consecutive hours without changing its batteries. This result meets the original specification and is considered to have sufficient performance.3. Evaluation of the portable system : The experiment was carried out at the Dept.Otolaryngology, Tohoku University School of Medicine. Though the number of the subjects is small so far, some promising results has been obtained. For using this system in everyday life, a system to fit the parameters of the hearing aid to each individual listener must be further developed. Thus the research should be continued.

本研究的目的是开发一个可携式数位助听器系统，以实现我们所提出的方法，并对该系统进行评估。在该方法中，输入信号的频谱通过在每个窄带中补偿响度的运气而被转移到感音神经性听力受损的收听者的剩余可听范围中，并且期望极大地改善受损收听者的可懂度。在便携式助听器中实现上述方法的算法和软件的开发：选用低功耗的DSP芯片Motorola DSP-56156作为系统的CPU。开发了DSP-56156的软件，真实的实时实现了上述方法.便携式数字助听器的开发：该系统由我们设计，由Ono Sokki公司开发，该系统的尺寸为23 x87 x138 mm，可以连续使用四个小时而无需更换电池。该结果符合原始规范，并被认为具有足够的性能。3.便携式系统的评价：实验在东北大学医学部耳鼻咽喉科进行。虽然到目前为止，研究对象还不多，但已经取得了一些可喜的成果。为了在日常生活中使用该系统，必须进一步开发使助听器的参数适合每个个体收听者的系统。因此，应继续进行研究。