Ability of older adults to benefit from dynamic pitch for speech recognition in noise

老年人受益于噪声中语音识别的动态音调的能力

基本信息

  • 批准号:
    8980477
  • 负责人:
  • 金额:
    $ 5.42万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2015
  • 资助国家:
    美国
  • 起止时间:
    2015-09-29 至 2017-09-28
  • 项目状态:
    已结题

项目摘要

 DESCRIPTION (provided by applicant): Difficulty recognizing speech in noise presents a great challenge to an older listener's ability to participate in social activities and obtain medicl care, often resulting in social isolation, cognitive decline, and psychological disturbance. Voice pitch, as defined by fundamental frequency (F0) in speech, is one of the most powerful cues for speech intelligibility in the presence of noise. While data from younger normal-hearing listeners suggest dynamic pitch cue is helpful for speech recognition in noise, some older listeners may be deprived of benefit from this cue because they cannot perceive it. Aim 1 of this proposal is to determine whether older listeners' individual ability to perceive dynamic pitch contributes to speech recognition in noise. We will use a pitch contour identification test to quantify dynamic pitch perception, while having a pitch discrimination test to control for ability to perceive stati pitch. The amount of difficulty understanding speech in noise will be measured by subjective and objective tests. Data will be acquired from both presbycusic and older near-normal hearing listeners to demonstrate a wide range of variability associated with hearing loss and aging. It is anticipated that the outcome of the Aim 1 experiments will serve as a foundation for devising customized clinical approaches that involve dynamic pitch perception as a potential contributor to speech-in-noise deficit. The efficacy of pitch contour for enhancing speech recognition also depends on the noise scenario and listener characteristics. Aim 2 of the proposal is to elucidate the environmental and listener factors modulating the efficacy of dynamic pitch cue for enhancing speech recognition in older adults with variability in age and hearing status. The benefit of dynamic pitch cue is defined by the differences in speech recognition performance across three target speech conditions (normal contour, flat contour, and strong contour). The amounts of benefit will be compared between modulated versus static noises, as well as between speech versus non-speech noises. It is predicted to be higher in modulated noise than in static noise, and to be higher in speech masker than in non-speech masker. Age and hearing loss are expected to influence the amount of benefit from dynamic pitch. The outcome of the Aim 2 experiments can direct development of technology and rehabilitation program that enhance the efficacy of dynamic pitch cue in these important noise situations.
 描述(由申请人提供):在噪声中识别语音的困难对老年人参与社会活动和获得医疗护理的能力提出了很大的挑战,通常会导致社交孤立,认知能力下降和心理障碍。由语音中的基频(F0)定义的音高是在存在噪声的情况下对语音可懂度的最有力的线索之一。虽然从年轻的正常听力的听众的数据表明,动态音高线索是有益的语音识别噪声中,一些老年人可能会被剥夺的好处,从这个线索,因为他们不能感知it.Aim 1的建议是确定是否老年人的个人能力,感知动态音高有助于语音识别噪声中。我们将使用音高轮廓识别测试来量化动态音高感知,同时使用音高辨别测试来控制感知静态音高的能力。在噪音中理解语音的困难程度将通过主观和客观测试来衡量。数据将从老年人和老年人接近正常听力的听众中获得,以证明与听力损失和衰老相关的广泛变化。预计目标1实验的结果将作为设计定制临床方法的基础,该方法涉及动态音高感知作为噪声中语音缺陷的潜在贡献者。 基音轮廓增强语音识别的效果还取决于噪声场景和听者特征。目的2的建议是阐明环境和听众因素调制的动态音高提示,以提高老年人的年龄和听力状态的变化的语音识别的功效。动态音高提示的好处是由三种目标语音条件(正常轮廓、平坦轮廓和强轮廓)下语音识别性能的差异定义的。将在调制噪声与静态噪声之间以及在语音噪声与非语音噪声之间比较益处的量。它被预测为在调制噪声中比在静态噪声中更高,并且在语音掩蔽中比在非语音掩蔽中更高。年龄和听力损失预计会影响动态音高的益处。目标2实验的结果可以指导技术和康复计划的发展,以提高在这些重要的噪声环境中的动态音高提示的功效。

项目成果

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Jing Shen其他文献

Jing Shen的其他文献

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{{ truncateString('Jing Shen', 18)}}的其他基金

Identifying the perceptual factors that contribute to older listeners'''' dynamic pitch benefit for speech recognition in noise.
识别有助于老年听众动态音高的感知因素,有利于噪声中的语音识别。
  • 批准号:
    10307057
  • 财政年份:
    2019
  • 资助金额:
    $ 5.42万
  • 项目类别:
Identifying the perceptual factors that contribute to older listeners'''' dynamic pitch benefit for speech recognition in noise.
识别有助于老年听众动态音高的感知因素,有利于噪声中的语音识别。
  • 批准号:
    10247973
  • 财政年份:
    2019
  • 资助金额:
    $ 5.42万
  • 项目类别:
Aberrant DNA Methylation of MicroRNA Genes in Hepatocellular Carcinoma (HCC)
肝细胞癌 (HCC) 中 MicroRNA 基因的异常 DNA 甲基化
  • 批准号:
    8330235
  • 财政年份:
    2011
  • 资助金额:
    $ 5.42万
  • 项目类别:
Aberrant DNA Methylation of MicroRNA Genes in Hepatocellular Carcinoma (HCC)
肝细胞癌 (HCC) 中 MicroRNA 基因的异常 DNA 甲基化
  • 批准号:
    8190296
  • 财政年份:
    2011
  • 资助金额:
    $ 5.42万
  • 项目类别:
Telomere dysfunction, oxidative damage and breast cancer risk
端粒功能障碍、氧化损伤和乳腺癌风险
  • 批准号:
    7291553
  • 财政年份:
    2006
  • 资助金额:
    $ 5.42万
  • 项目类别:
Telomere dysfunction, oxidative damage and breast cancer risk
端粒功能障碍、氧化损伤和乳腺癌风险
  • 批准号:
    7213985
  • 财政年份:
    2006
  • 资助金额:
    $ 5.42万
  • 项目类别:

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