Auditory Processing of Complex Sounds - Sensitivity to Chirps
概览
- 阶段
- 不适用
- 干预措施
- 未指定
- 疾病 / 适应症
- Hearing Loss, Sensorineural
- 发起方
- University of Rochester
- 入组人数
- 67
- 试验地点
- 1
- 主要终点
- F1 Discrimination Threshold
- 状态
- 已完成
- 最后更新
- 11个月前
概览
简要总结
The purpose of this study is to better understand the sensitivity of listeners to the fast changes in frequency or amplitude of sounds that occur in speech. The investigators are studying ways to manipulate these aspects of sounds in an effort to make speech sounds more clear.
详细描述
The investigators will test listeners with normal hearing or with mild or moderate hearing loss. Tests will first focus on sensitivity to changes in fast changes in amplitude (loudness) or frequency (pitch) in sounds. Then the investigators will test the intelligibility of synthetic vowels and syllables in which these "chirps" are manipulated. Finally, the investigators will test intelligibility of words in noise while manipulating sounds in an effort to improve clarity.
研究者
Laurel Carney
Professor
University of Rochester
入排标准
入选标准
- •Normal hearing, mild or moderate symmetric sensorineural hearing loss.
排除标准
- •Asymmetric hearing thresholds (more than 15 decibels (dB) threshold difference between the two ears at any frequency up to 4 kHz).
- •Severe hearing loss (greater than 60 dB hearing thresholds at any frequency up to 4 kHz).
结局指标
主要结局
F1 Discrimination Threshold
时间窗: 6 months
Discrimination threshold for changes in F1, the low-frequency formant (spectral peak) in the synthetic vowel sounds.
F2 Discrimination Threshold
时间窗: 6 month
Discrimination thresholds in % frequency for F2, the higher-frequency peak in synthetic vowel stimuli.
Pure-tone Average Thresholds
时间窗: 6 months
Hearing thresholds, average across test frequencies from 250 to 4000 Hz and averaged across the two ears.