While bothtypes of hearing losspresent unique challenges, their impact on daily life differs. High frequency hearing loss primarily affects the clarity of speech and the ability to hear consonants, while low fr
Evoked otoacoustic emissions have been recorded from ears with high- and low/medium-frequency hearing losses using a simple technique with fixed stimulus intensity and no suppression of stimulus artifact. Ears with low/medium frequency hearing loss exceeding 40 dB HL generate responses ending before ...
www.51education.net|基于13个网页 2. 先天性高频感音神经性弱听 「苏太,从听力报告显示,小明是患上中度『先天性高频感音神经性弱听』(High Frequency Hearing Loss),而引致他听不 … www.hkheadline.com|基于 1 个网页
High-frequency sounds have a short wavelength, and are easily absorbed. Low-frequency sounds have a long wavelength, and are more difficult to block.
Frequency Lowering: A Unique Approach to High-Frequency Hearing LossAndrea HannanDawkes
Bilateral high-frequency hearing loss was defined as the average high-frequency (3, 4 and 6kHz) hearing threshold ≥25dB in both ears. CHD was defined as self-reported diagnoses by doctors or other health professionals.ResultsCompared with those with normal high-frequency hearing, participants ...
For instance, prevalence estimates of bilateral hearing loss >25 dB HL in NHANES ranged from 7.5% using a speech-frequency average (across 0.5, 1, 2 and 4 kHz) to 19.1% using a high-frequency average (across 3, 4, 6 kHz) among 20- to 69-year-olds in 2011–2012.8 These cannot ...
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Overall questionnaire responses relating to conversation showed more benefit with the high-frequency emphasis aid. Subjects generally preferred this aid, possibly due to less low-tone gain than the standard NHS aid. 展开 关键词: high frequency hearing loss disability questionnaire hearing aid FAAF II...
Initially, the high-frequency range was too high, an effect which could be attributed to the first mechanical resonance frequency as being around 10 kHz. This effect could be reduced with a low-pass limitation of 8 kHz; the resulting sound quality could then no longer be distinguished from ...