Loudness scaling revisited.
Loudness scaling revisited.
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重新审视响度缩放。
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
C. Elberling
中科院分区：
文献类型：
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作者：
C. Elberling
本研究旨在评估绝对响度标度是否可以为非线性助听器的配戴提供有用的信息。来自七个衡量程序的标准数据表明，各个程序将知觉类别与声音水平的关系有所不同，并具有显著的受试者之间的差异。来自四项研究的听力受损数据表明，响度函数的反斜率随着听力损失而线性变化，并且具有恒定的方差。对于助听器的配戴，在大多数情况下，可以根据听力损失预测斜率，精度在正常微调的范围内。对于非线性助听器的匹配，正常响度函数和受损响度函数的统计特性是同等重要的。目前的分析强烈表明，在一般情况下，绝对响度标度不能为拟合过程提供重要信息。
The present work was undertaken in an attempt to evaluate whether it is reasonable to expect that categorical loudness scaling can provide useful information for nonlinear hearing aid fitting. Normative data from seven scaling procedures show that the individual procedures relate the perceptual categories differently to sound level and with a substantial between-subject variance. Hearing-impaired data from four studies demonstrate that the inverse slope of the loudness function varies linearly with hearing loss and with a constant variance. In relation to hearing aid fitting, the slope can, in most cases, be predicted from the hearing loss with an accuracy within the range of a normal finetuning. For the fitting of nonlinear hearing aids, the statistical properties of both normal and impaired loudness functions are equally important. The present analysis strongly suggests that categorical loudness scaling cannot, in general, provide significant information for the fitting process.