Sammeth C A, Birman M, Hecox K E
Division of Hearing and Speech Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee.
Ear Hear. 1989 Apr;10(2):94-100. doi: 10.1097/00003446-198904000-00003.
Methods for determining hearing aid settings often incorporate measurements of most comfortable loudness (MCL) and uncomfortable loudness (UCL) levels. This study examined the variability of loudness measures and their correlation to threshold data, using speech stimuli presented to hearing-impaired subjects. MCLs, UCLs, speech reception, and speech detection thresholds were obtained from 50 subjects having sensorineural impairments. The stimuli were CID W-2 spondees spoken by three female clinicians. Three MCLs and UCLs were obtained within each session, using ascending runs and a closed-set response list. Fifteen subjects were retested twice over intervals ranging from a week to several months. Between-session variability for the loudness measurements was less than or equal to 10 dB across sessions and speakers for the majority of subjects, with a tendency for the MCL and UCL to increase slightly over time. Significant variability was attributed to the use of live-voice presentation by different clinicians. High positive correlation was found between threshold and loudness data for subjects with relatively flat audiometric configurations but not for subjects demonstrating sharply sloping hearing losses.
确定助听器设置的方法通常包括测量最舒适响度（MCL）和不舒适响度（UCL）水平。本研究使用呈现给听力受损受试者的言语刺激，检验了响度测量的变异性及其与阈值数据的相关性。从50名患有感音神经性损伤的受试者中获取了MCL、UCL、言语接受阈值和言语检测阈值。刺激物是由三名女性临床医生说出的CID W-2双音节词。在每个测试环节中，使用递增序列和封闭式反应列表获取三个MCL和UCL。15名受试者在从一周到几个月的时间间隔内进行了两次重新测试。对于大多数受试者，跨测试环节和说话者的响度测量的测试环节间变异性小于或等于10 dB，MCL和UCL有随时间略有增加的趋势。显著的变异性归因于不同临床医生使用现场语音呈现。对于听力图形态相对平坦的受试者，阈值和响度数据之间存在高度正相关，但对于表现出急剧下降型听力损失 的受试者则不然。
