Research and Development of Cochlear Implant and Hearing Aid Evaluation for children with hearing-impairment, -Subjective and objective evaluation-

目的评估助听器：放大语音的可听性，一个听障人士佩戴助听器能听到多少放大的语音？从言语辨别测试或助听器单词识别测试的结果中，我们可以间接地知道他或她对放大的语言的听力。这项研究的目的是用探针管麦克风量化一名热障人士放大的语音的可听性。在这项研究中，我们使用了一种非线性助听器。助听器的主观评价：听力障碍者对助听器的自我评价，编制了24个项目的自填式问卷，量化了助听器在日常生活中的表现。这些配置文件评估了在三种不同的收听环境(嘈杂、混响和安静的环境)下的语音放大体验，以及对放大的环境声音的反应。满意度也使用问卷进行了评估。该问卷对82名有经验的助听器使用者进行了调查。结果显示，6%的受试者对助听器感到满意，41%的受试者不满意，其余53%的受试者为中等。不同满意度的被试在自我评价成绩上存在显著差异。不同听力环境下的自我评价成绩也存在显著差异。总体而言，受试者报告称，在安静的情况下和在听环境声音时，他们的助听器比在嘈杂和混响的情况下使用助听器要成功得多。本文讨论了模拟个人助听器在放大效果、与听力水平的关系、有效性和局限性方面的个体差异。

Objective Evaluation of Hearing aids : Audibility of Amplified Speech, How much can a hearing-impaired person hear amplified speech by wearing a hearing aid? From results of a speech discrimination test or a word identification test with a hearing aid, we can indirectly know his or her audibility of amplified speech. The purpose of this study is to quantify audibility of amplified speech for one heating-impaired person using a probe tube microphone. In the study we used a non-linear hearing aid. The results in which we measured level distribution and dynamic range of amplified speech are reported.Subjective Evaluation of Hearing Aids : Self-assessment of hearing aids by the hearing impaired, A 24-item self-administered questionnaire that quantifies performance with a hearing aid in everyday life was developed. The profiles assess experience with amplification of speech in three different listening situations (noisy, reverberant, and quiet environments) and in terms of reactions to amplified environmental sounds. Satisfaction was also assessed using the questionnaire. The questionnaire was administered to 82 experienced hearing aid users. Results revealed that 6% of the subjects were satisfied with their hearing aids, 41% of the subjects were dissatisfied and the remaining 53% were intermediate. There were significant differences between the self-assessment performance scores of subjects with different degree of satisfaction. Significant differences were also observed between the self-assessment performance scores for different listening environments. In general, subjects reported significantly more success with their hearing aids in quiet situation and in listening to environmental sounds than in noisy and reverberant situations. Individual differences with respect to amplifications effects, relationship to hearing level, effectiveness and limitation of analog personal hearing aids are discussed in the text.