Nabelek Anna K, Freyaldenhoven Melinda C, Tampas Joanna W, Burchfiel Samuel B, Muenchen Robert A
Department of Audiology and Speech Pathology, University of Tennessee, Knoxville, 37996-0740, USA.
J Am Acad Audiol. 2006 Oct;17(9):626-39. doi: 10.3766/jaaa.17.9.2.
Acceptable noise level (ANL) measures a listener's reaction to background noise while listening to speech. Relations among hearing aid use and ANL, speech in noise (SPIN) scores, and listener characteristics (age, gender, pure-tone average) were investigated in 191 listeners with hearing impairment. Listeners were assigned to one of three groups based on patterns of hearing aid use: full-time use (whenever hearing aids are needed), part-time use (occasional use), or nonuse. Results showed that SPIN scores and listener characteristics were not related to ANL or hearing aid use. However, ANLs were related to hearing aid use. Specifically, full-time hearing aid users accepted more background noise than part-time users or nonusers, yet part-time users and nonusers could not be differentiated. Thus, a prediction of hearing aid use was examined by comparing part-time users and nonusers (unsuccessful hearing aid users) with full-time users (successful hearing aid users). Regression analysis determined that unaided ANLs could predict a listener's success of hearing aids with 85% accuracy.
可接受噪声水平（ANL）衡量的是听众在听语音时对背景噪声的反应。在191名听力受损的听众中，研究了助听器使用与ANL、噪声中的言语（SPIN）得分以及听众特征（年龄、性别、纯音平均听阈）之间的关系。根据助听器使用模式，听众被分为三组之一：全职使用（需要时随时使用助听器）、兼职使用（偶尔使用）或不使用。结果表明，SPIN得分和听众特征与ANL或助听器使用无关。然而，ANL与助听器使用有关。具体而言，全职助听器使用者比兼职使用者或不使用者能接受更多的背景噪声，但兼职使用者和不使用者之间无法区分。因此，通过比较兼职使用者和不使用者（助听器使用不成功者）与全职使用者（助听器使用成功者）来检验助听器使用的预测情况。回归分析确定，未佩戴助听器时的ANL能够以85%的准确率预测听众使用助听器的成功情况。
