Stone M A, Glasberg B R, Moore B C
Department of Experimental Psychology, University of Cambridge, UK.
Br J Audiol. 1992 Dec;26(6):329-34. doi: 10.3109/03005369209076655.
The shape of the auditory filter at a given centre frequency can be estimated by measuring the threshold for detecting a sinusoid presented in a spectral notch in a noise masker, as a function of notch width. Laboratory studies using this method have typically been based on threshold measurements for between 13 and 19 notch widths. In this note, we describe how both the overall sharpness and asymmetry of the auditory filter in hearing-impaired subjects can be estimated with reasonable accuracy using only five notch widths. This considerably reduces the testing time needed, making it possible to apply the method in clinical testing.
通过测量在噪声掩蔽器的频谱陷波中呈现的正弦波的检测阈值作为陷波宽度的函数，可以估计给定中心频率处的听觉滤波器的形状。使用这种方法的实验室研究通常基于13至19个陷波宽度的阈值测量。在本说明中，我们描述了如何仅使用五个陷波宽度就可以合理准确地估计听力受损受试者听觉滤波器的整体锐度和不对称性。这大大减少了所需的测试时间，使得该方法能够应用于临床测试。
