期刊
JOURNAL OF THE AMERICAN ACADEMY OF AUDIOLOGY
卷 20, 期 3, 页码 161-171出版社
AMER ACAD AUDIOLOGY
DOI: 10.3766/jaaa.20.3.2
关键词
Amplification; compression; hearing aids; modulation; noise; speech
We present measurements showing that the long-term signal-to-noise ratio (SNR) at the output of an amplification system that includes amplitude compression may be higher or lower than the long-term SNR at the input, dependent on interactions among the actual long-term input SNR, the modulation characteristics of the signal and noise being mixed, and the amplitude compression characteristics of the system under test. The effects demonstrated with the measurements shown here have implications for choices of test methods when comparing alternative hearing aid systems. The results of speech-recognition tests intended to compare alternative systems may be misleading or misinterpreted if the above interactions are not considered.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据