Effects of age and hearing loss on speech recognition

年龄和听力损失对语音识别的影响

• 批准号: 7232007
• 负责人: KUMIKO T BOIKE
• 金额: $ 3.23万
• 依托单位: ARIZONA STATE UNIVERSITY-TEMPE CAMPUS
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-06-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7232007
• 关键词: Affect; Age; Area; Auditory; Goals; Growth; Hearing; Individual; Masks; Modeling; Noise; Performance; Persons; Process; Psychophysiology; Research Training; Resolution; Shapes; Speech; Staging; Testing; age effect; experience; hearing impairment; speech recognition

DESCRIPTION (provided by applicant): The aim of this research training application is to examine the difficulty experienced by older individuals and hearing impaired individuals when trying to recognize speech in background noise. To accomplish this, two areas will be examined: the effects of aging and hearing loss on speech recognition in noises varying in temporal complexity, and the influence of temporal processing on these effects. Younger normal-hearing listeners recognize more speech in an amplitude-modulated background noise than in an unmodulated noise; however, older and hearing-impaired listeners are not as able to use background noise modulation to their advantage. Unfortunately, a clear understanding of the influences of age and hearing loss on this diminished ability has yet to be obtained. The goal of this project is to come to a better understanding of the influences of age and hearing loss on a person's ability to recognize speech in both amplitude-modulated and unmodulated noises. To accomplish this, older and younger listeners with normal hearing and hearing impairment will be tested. Experimental tasks will include speech recognition testing in five different background noises of increasing temporal complexity. Additionally, to investigate the underlying processes that may produce the effects of age and hearing impairment, three stages of the temporal window model of temporal resolution will also be tested: auditory filter shapes, compressive nonlinearity (i.e., growth of forward masking), and temporal window shapes.

描述（由申请人提供）：本研究培训申请的目的是检查老年人遇到的困难，并在试图在背景噪音中识别语音时听力受损。为此，将检查两个领域：衰老和听力损失对时间复杂性各不相同的噪音中语音识别的影响，以及时间处理对这些影响的影响。年轻的正常听众在振幅调制的背景噪声中识别出比未经调制的噪声更多的语音。但是，年龄较大和听力障碍的听众无法使用背景噪声调制来获得优势。不幸的是，尚未获得对年龄和听力损失对这种减弱能力的影响的清晰了解。该项目的目的是更好地理解年龄和听力损失对一个人在振幅调制和未经调制的噪声中识别语音能力的能力的影响。为此，将测试患有正常听力和听力障碍的年龄较小的听众。实验任务将包括五个不同背景噪声的语音识别测试，这些噪声增加了时间复杂性。此外，为了研究可能产生年龄和听力障碍影响的基本过程，还将测试时间分辨率的时间窗口模型的三个阶段：听觉过滤器形状，压缩非线性（即，向前掩盖的增长）和时间窗格。