The ecological significance of extended high-frequency hearing in humans

人类高频听力扩展的生态意义

基本信息

批准号：
10280191
负责人：
Brian Bruce Monson
金额：
$ 31.12万
依托单位：
UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN
依托单位国家：
美国
项目类别：
财政年份：
2021
资助国家：
美国
起止时间：
2021-07-01 至 2026-06-30
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10280191
关键词：
Acoustics Adolescence Adult Affect American Auditory Auditory Perception Auditory system Awareness Clinic Clinical Cochlea Cochlear Implants Communication Complex Cueing for speech Cues Databases Device Designs Ear Environment Exhibits Face Female Frequencies Goals Head Hearing Hearing Aids Hearing Tests High-Frequency Hearing Loss Human Individual Individual Differences Length Masks Measures National Institute on Deafness and Other Communication Disorders Nature Neurosciences Noise Oral cavity Pattern Performance Population Positioning Attribute Presbycusis Radiation Reporting Research Research Personnel Sex Differences Signal Transduction Speech Speech Perception Techniques Technology Testing Time Training World Health Organization age related base cohort communication device daily functioning design experimental study hearing impairment hearing range improved insight neglect normal hearing segregation spectral energy speech in noise speech recognition young adult

项目摘要

The World Health Organization reports that nearly a half billion people suffer from a disabling hearing loss worldwide. Hearing loss is typically measured in the standard audiometric frequency range, 250 to 8,000 Hz. However, the young, healthy human frequency range of hearing extends to about 20,000 Hz. Extended high- frequency hearing loss (>8,000 Hz) is rarely assessed in the clinic but is a widespread, natural, age-related condition that begins as early as young adulthood. It is unknown to what extent extended high-frequency hearing loss affects daily functioning. This proposal assesses the ecological value of extended high-frequency hearing for speech perception and spatial awareness in realistic settings, which will include spatially separated talkers having different head orientations in reverberant conditions. There are three specific aims. Aim 1 will generate a high-fidelity multi-directional anechoic speech database with a representative cohort of adult native speakers of American English. This database is designed to be used for speech perception experiments and will be made publicly available. Speech spectral energy across the full range of human hearing will be examined, as well as the nature of speech radiation toward different directions around the talkers. Aim 2 will test the effect of simulated loss of extended high frequencies on speech perception and spatial awareness for listeners with normal hearing out to 16 kHz. These experiments are based on our recent observation that extended high frequencies in speech provide a benefit for speech-in-speech recognition. We will determine the magnitude of this benefit in realistic settings and the factors responsible for it. Aim 3 will test the effect of natural loss of extended high frequencies on speech perception and spatial awareness. Forms of natural loss that will be studied include hearing loss at extended high frequencies and the wearing of face coverings (masks) by talkers. The proposed studies will establish the ecological utility of extended high frequencies for speech communication. Valuable insight will be gained as to how extended high-frequency hearing loss impacts daily living for otherwise normal-hearing listeners. It is expected that results of the proposed studies will aid in ongoing efforts to (1) improve clinical measures of hearing loss and (2) improve hearing-aid processing techniques.

世界卫生组织报告说，将近十亿人遭受破坏性听力损失的困扰全世界。听力损失通常在标准听力频率范围内测量250至8,000 Hz。但是，年轻，健康的人类听力范围扩展到约20,000 Hz。延长高 - 频率听力损失（> 8,000 Hz）很少在诊所评估，但是一种广泛，自然，与年龄有关的始于年轻成年的状况。未知在多大程度上扩展高频听力损失会影响日常功能。该提案评估了扩展高频的生态价值在现实环境中听取语音感知和空间意识，其中包括空间分开在混响条件下，说话者的头部方向不同。有三个特定的目标。目标1意志生成具有代表性的成年天然队列的高保真多方向语音数据库美国英语的演讲者。该数据库旨在用于语音感知实验和将公开可用。在整个人类听力范围内的语音光谱能量将是检查了对说话者周围不同方向的语音辐射的性质。 AIM 2意志测试模拟高频损失对语音感知和空间意识的影响听力正常的听众达到16 kHz。这些实验是基于我们最近的观察结果语音中的延长高频为语音识别提供了好处。我们将确定这种好处在现实环境及其负责的因素中的幅度。 AIM 3将测试在语音感知和空间意识上的自然丧失高频的自然丧失。自然损失的形式这将研究包括在扩展高频处听力损失和面部覆盖物的佩戴（面具）说话者。拟议的研究将确定扩展高频的生态实用性语音交流。关于如何扩展高频听力损失，将获得宝贵的见解影响日常生活的正常听众。预计拟议的研究结果将有助于持续的努力（1）改善听力损失的临床措施，（2）改善助听器处理技术。