Development of Improved Earphone for Hearing Testing

用于听力测试的改良耳机的开发

基本信息

  • 批准号:
    7326702
  • 负责人:
  • 金额:
    $ 25.67万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2005
  • 资助国家:
    美国
  • 起止时间:
    2005-09-01 至 2009-06-30
  • 项目状态:
    已结题

项目摘要

DESCRIPTION (provided by applicant): This project seeks to develop an earphone for diagnostic audiometry with features that will significantly increase the efficiency and decrease the cost of routine hearing testing. The most-often used earphones employ a supra-aural design that has several undesirable characteristics, including 1) an "occlusion effect", an artificial increase in sensitivity to bone-conducted stimuli; 2) poor ambient noise exclusion; 3) high inter-subject variability in sound pressures delivered to human ears; and 4) poor comfort. The occlusion effect necessitates that the test ear be uncovered during bone conduction testing. This requires that the tester change the transducer arrangement several times during pure tone testing. In manual testing, this requirement can add several minutes to the test time. For automated testing, the need to reposition transducers several times during the test is counterproductive to the goal of reducing tester intervention. The poor ambient noise exclusion requires that testing be performed in expensive sound rooms. The inter-subject variability increases the variance associated with threshold measures. The poor comfort limits the time that some patients will participate in the test. Other earphones are available that address some, but not all, of these problems. In this project, an earphone will be developed that 1) minimizes the occlusion effect permitting pure tone and speech hearing tests to be conducted with a single transducer arrangement and facilitating automated test methods; 2) increases ambient noise exclusion, eliminating (in many environments) the need for sound-attenuating rooms; 3) decreases inter-subject variability; and 4) increases comfort. In addition to meeting these goals, the earphone must have a frequency response that is similar to other audiometric earphones to avoid significant changes in the frequency content of stimuli used for speech tests. During the Phase I project several prototypes have been developed and evaluated. The preliminary data obtained in Phase I indicates that the current design has a significantly reduced occlusion effect, good ambient noise exclusion, a more stable coupling to the ear for reduced inter-subject variability, excellent comfort, and an excellent frequency response. Although this design is adequate to meet the requirements for automated testing and increased efficiency of manual testing, additional improvements will be explored in Phase II. These will include elimination of the residual occlusion effect at 250 Hz and increased output. These can be accomplished by modification of the enclosure and replacing the transducer with a more efficient device. /Relevance Millions of hearing tests are conducted each year in the US with methods that are essentially unchanged in the last five decades. The tests are usually conducted by highly trained professionals in expensive sound-treated rooms. This project is a component of a research and development program to develop efficient, accurate, automated hearing tests. Automated testing cannot be performed with the earphones most commonly used for hearing testing. In this project an earphone is being developed that can be used in both automated and manual testing and will significantly increase the efficiency, accuracy, and accessibility.
描述(由申请人提供):本项目旨在开发一种用于诊断测听的耳机,其功能将显着提高效率并降低常规听力测试的成本。最常用的耳机采用具有若干不期望的特性的贴耳设计,包括1)“闭塞效应”,对骨传导刺激的敏感度的人为增加; 2)差的环境噪声排除; 3)传递到人耳的声压的高受试者间可变性;以及4)差的舒适度。闭塞效应需要在骨传导测试期间暴露测试耳。这要求测试人员在纯音测试期间多次改变换能器布置。在手动测试中,此要求可能会增加几分钟的测试时间。对于自动化测试,在测试过程中需要多次重新定位传感器,这与减少测试人员干预的目标背道而驰。环境噪声排除效果差,需要在昂贵的声音室中进行测试。受试者间变异性增加了与阈值测量相关的方差。较差的舒适性限制了一些患者参与测试的时间。其他耳机可以解决这些问题中的一些,但不是全部。在这个项目中,将开发一种耳机,1)最大限度地减少闭塞效应,允许使用单个换能器布置进行纯音和语音听力测试,并促进自动化测试方法; 2)增加环境噪声排除,消除(在许多环境中)对声音衰减室的需要; 3)减少受试者之间的差异; 4)增加舒适度。除了满足这些目标外,耳机必须具有与其他测听耳机相似的频率响应,以避免用于语音测试的刺激的频率内容发生显著变化。在第一阶段项目期间,已经开发和评估了几个原型。第一阶段获得的初步数据表明,当前的设计具有显着降低的闭塞效应、良好的环境噪音排除、更稳定的耳朵耦合以减少受试者间的差异、出色的舒适性和出色的频率响应。虽然这种设计足以满足自动化测试的要求,并提高手动测试的效率,但在第二阶段将探索其他改进。这些将包括消除250 Hz时的残留闭塞效应和增加输出。这些可以通过修改外壳和用更有效的装置替换换能器来实现。在美国,每年进行数百万次听力测试,其方法在过去五十年中基本上没有变化。这些测试通常由训练有素的专业人员在昂贵的隔音室进行。该项目是研发项目的一部分,旨在开发高效,准确,自动化的听力测试。自动测试不能使用最常用于听力测试的耳机进行。在这个项目中,正在开发一种耳机,可以用于自动和手动测试,并将显着提高效率,准确性和可访问性。

项目成果

期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)

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ROBERT H MARGOLIS其他文献

ROBERT H MARGOLIS的其他文献

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{{ truncateString('ROBERT H MARGOLIS', 18)}}的其他基金

Audiometric Earphone - Phase 1
测听耳机 - 第 1 阶段
  • 批准号:
    6990287
  • 财政年份:
    2005
  • 资助金额:
    $ 25.67万
  • 项目类别:
Development of Improved Earphone for Hearing Testing
用于听力测试的改良耳机的开发
  • 批准号:
    7460562
  • 财政年份:
    2005
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Test of Word Recognition - Phase II
文字识别自动测试 - 第二阶段
  • 批准号:
    7052876
  • 财政年份:
    2003
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Test of Word Recognition - Phase I
文字识别自动测试 - 第一阶段
  • 批准号:
    6734133
  • 财政年份:
    2003
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Test of Word Recognition - Phase II
文字识别自动测试 - 第二阶段
  • 批准号:
    6936830
  • 财政年份:
    2003
  • 资助金额:
    $ 25.67万
  • 项目类别:
ASSESSMENT OF MIDDLE EAR FUNCTION
中耳功能评估
  • 批准号:
    6602404
  • 财政年份:
    2002
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Method for Measurement of Hearing Sensitivity
听力敏感性自动测量方法
  • 批准号:
    6686776
  • 财政年份:
    2001
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Method for Measurement of Hearing Sensitivity
听力敏感性自动测量方法
  • 批准号:
    6587147
  • 财政年份:
    2001
  • 资助金额:
    $ 25.67万
  • 项目类别:
ASSESSMENT OF MIDDLE EAR FUNCTION
中耳功能评估
  • 批准号:
    6467572
  • 财政年份:
    2001
  • 资助金额:
    $ 25.67万
  • 项目类别:
Automated Method for Measurement of Hearing Sensitivity
听力敏感性自动测量方法
  • 批准号:
    6402976
  • 财政年份:
    2001
  • 资助金额:
    $ 25.67万
  • 项目类别:

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