Block M G, Wiley T L
J Speech Hear Res. 1986 Mar;29(1):92-8. doi: 10.1044/jshr.2901.92.
The effects of activator spectral density on the growth characteristics of the acoustic reflex were evaluated in normal-hearing subjects. Reflex-growth dynamics were evaluated for computer-synthesized activators composed of 2 to 50 components and bandwidths wider and more narrow than the reported critical band for loudness summation. Although acoustic-reflex characteristics varied with activator bandwidth, there were no significant differences in reflex-growth patterns as a function of activator density (number of components). The findings suggest that, like loudness summation, growth or magnitude characteristics of the acoustic reflex are unaffected by the spectral density of the signal.
在听力正常的受试者中评估了激活器频谱密度对听觉反射生长特性的影响。针对由2至50个成分组成且带宽比报道的响度总和临界带宽更宽和更窄的计算机合成激活器，评估了反射生长动力学。尽管听觉反射特性随激活器带宽而变化，但作为激活器密度（成分数量）函数的反射生长模式没有显著差异。研究结果表明，与响度总和一样，听觉反射的生长或幅度特性不受信号频谱密度的影响。
