Tyler R S, Conrad-Armes D
J Speech Hear Res. 1983 Mar;26(1):59-72. doi: 10.1044/jshr.2601.59.
We have attempted to determine a meaningful measure of tinnitus loudness that considers loudness recruitment. Sixteen subjects with sensorineural tinnitus adjusted the level of a pure tone so that it was (a) at threshold, (b) equal in loudness to the tinnitus, and (c) uncomfortably loud. The pure-tone frequency was (a) at the frequency of the tinnitus pitch, and (b) at the octave frequency between 500 and 4000 Hz having the pure-tone threshold closest to 0 dB HL. In addition, the subjects adjusted the level of a broadband noise so that it (a) was at threshold, (b) just masked the tinnitus, and (c) was uncomfortably loud. These measurements were performed both in the ear ipsilateral and in the ear contralateral to the tinnitus. Formulae based on abnormal loudness functions and uncomfortable loudness levels are presented that convert equal-loudness matches in dB sensation level (SL) into loudness in sones. The level of broadband noise (in dB SL) required to mask tinnitus was about the same in the ipsilateral and in the contralateral ear for most of our subjects, regardless of the ear in which the tinnitus was localized. This noise level (in dB SL) required to mask the tinnitus correlated well with the level (in dB SL) of a tone at the most normal frequency judged equal in loudness to the tinnitus.
我们试图确定一种考虑响度重振的有意义的耳鸣响度测量方法。16名感音神经性耳鸣患者调整纯音的水平，使其（a）处于阈值，（b）响度与耳鸣相等，以及（c）响度达到不适程度。纯音频率为（a）耳鸣音调的频率，以及（b）在500至4000Hz之间具有最接近0dB HL纯音阈值的倍频程频率。此外，受试者调整宽带噪声的水平，使其（a）处于阈值，（b）刚好掩盖耳鸣，以及（c）响度达到不适程度。这些测量在耳鸣同侧耳和对侧耳中均进行。提出了基于异常响度函数和不适响度水平的公式，这些公式将以dB感觉级（SL）表示的等响度匹配转换为以宋为单位的响度。对于我们的大多数受试者，无论耳鸣位于哪只耳朵，掩盖耳鸣所需的宽带噪声水平（以dB SL为单位）在同侧耳和对侧耳中大致相同。这种掩盖耳鸣所需的噪声水平（以dB SL为单位）与在判断为响度与耳鸣相等的最正常频率下的纯音水平（以dB SL为单位）密切相关。
