公开(公告)号：US20040015099A1

公开(公告)日：2004-01-22

申请号：US10345041

申请日：2003-01-15

申请人： Rion Co., Ltd.

发明人： Takeshi Nakaichi ,  Shinichi Sakamoto ,  Keisuke Watanuki

IPC分类号： A61B005/00

CPC分类号： A61B5/121

摘要： A method for estimating the shape of an auditory filter by finding a coefficient p of a roex (p, r) filter which is used as a model for the shape of the auditory filter is provided, which comprises the steps of: generating a tone Snull which subtracts a given value a from a tone S which adds a given value x to the threshold of hearing T of a subject in a frequency f; generating a masker of a notch width g and level Nxnull including in a notch the frequency f in which frequency characteristics of the external and middle ears of the subject are considered; transmitting to the subject an inspection sound which superposes the masker on the tone Snull; measuring the minimum notch width gxnulla of the subject while varying the notch width g; calculating the coefficient p from an upper limit value gmax of the notch width g suitable for the subject from the minimum notch width gxnulla, the minimum notch width gxnulla, the value x corresponding to a coefficient r, and the value a; and estimating the shape of the auditory filter from the coefficient p calculated above and the value x corresponding to the coefficient r.

摘要翻译： 提供一种用于通过找到用作听觉滤波器形状的模型的roex（p，r）滤波器的系数p来估计听觉滤波器的形状的方法，其包括以下步骤：产生音调S 其从频率f中将给定值x添加到被摄体的听力T的阈值的音调S中减去给定值a; 产生陷波宽度g的掩蔽器，并且在陷波中包括考虑被摄体的外耳和中耳的频率特性的频率f; 向对象发送将掩蔽者叠加在音调S'上的检查声音; 在改变切口宽度g的同时测量被检体的最小切口宽度gx-a; 从最小切口宽度gx-a，最小切口宽度gx-a，对应于系数r的值x和值a，从适合于被摄体的切口宽度g的上限值gmax计算系数p; 并根据上述计算的系数p和对应于系数r的值x来估计听觉滤波器的形状。