Hawkins D B, Walden B E, Montgomery A, Prosek R A
Ear Hear. 1987 Jun;8(3):162-9. doi: 10.1097/00003446-198706000-00006.
A new procedure is described for measuring loudness discomfort levels (LDLs) for the purpose of selecting SSPL90 characteristics of hearing aids. The person is seated in sound field wearing a high-output hearing aid (with a known amount of 2 cm3 coupler gain) connected to a personal earmold. The loudness of frequency-specific signals is rated from a series of loudness category descriptors. The LDL is defined in terms of SPL developed in a 2 cm3 coupler, thus making selection of SSPL90 from hearing aid specification sheets practical. Experiments on LDL stability over time and validation of the SSPL90 selection are reported.
本文描述了一种新的程序，用于测量响度不适阈（LDL），目的是选择助听器的SSPL90特性。受试者坐在声场中，佩戴与个人耳模相连的高输出助听器（具有已知的2 cm³耦合器增益）。根据一系列响度类别描述符对特定频率信号的响度进行评级。LDL根据2 cm³耦合器中产生的声压级（SPL）来定义，从而使从助听器规格表中选择SSPL90变得切实可行。报告了关于LDL随时间稳定性的实验以及SSPL90选择的验证。
