Cox R M, Bisset J D
Ear Hear. 1982 Mar-Apr;3(2):66-71. doi: 10.1097/00003446-198203000-00003.
Relative accuracy was assessed for two methods for predicting preferred listening levels as estimated by measurements of the upper limit of the comfortable loudness range (ULCL). Sixteen hearing-impaired subjects provided ULCL data for eight test stimuli on each of five occasions. The stimuli were four narrow bands of noise centered at 500, 1000, 2000, and 4000 Hz and four narrow bands of speech babble also centered at 500, 1000, 2000, and 4000 Hz. Best estimates of ULCL were determined to be the means of the five measurements for each subject for each of the eight test signals. Results revealed that the mean ULCL for each speech-band stimulus was predicted more accurately from that subject's first measurement of ULCL for that speech-band than from his/her threshold for the same signal. However, the accuracy with which noise-band ULCLs could be used to predict the mean speech-band ULCL varied with frequency and with the number of trials averaged. Relationship of ULCL to preferred listening levels was explored by comparing results obtained in this study with work of previous investigators. Implications of the results for hearing aid gain prescription are discussed.
通过测量舒适响度范围上限（ULCL）来估计预测偏好聆听水平的两种方法的相对准确性。16名听力受损受试者在五次测试中的每次测试中，针对八个测试刺激提供了ULCL数据。这些刺激包括四个以500、1000、2000和4000赫兹为中心的窄带噪声，以及四个同样以500、1000、2000和4000赫兹为中心的语音杂波窄带。对于每个受试者的八个测试信号中的每一个，ULCL的最佳估计值被确定为五次测量的平均值。结果显示，与同一信号的阈值相比，每个语音频段刺激的平均ULCL从该受试者对该语音频段的首次ULCL测量中预测得更准确。然而，噪声频段ULCL用于预测平均语音频段ULCL的准确性随频率和平均试验次数而变化。通过将本研究获得的结果与先前研究者的工作进行比较，探讨了ULCL与偏好聆听水平的关系。讨论了结果对助听器增益处方的影响。
