Gößwein Jonathan Albert, Chalupper Josef, Kohl Manuel, Kinkel Martin, Kollmeier Birger, Rennies Jan
Fraunhofer Institute for Digital Media Technology (IDMT), Oldenburg Branch for Hearing, Speech, and Audio Technology (HSA) and Cluster of Excellence "Hearing4all", Oldenburg, Germany.
Advanced Bionics, European Research Center, Hannover, Germany.
Int J Audiol. 2024 Oct 5:1-12. doi: 10.1080/14992027.2024.2406884.
This study investigated a previously evaluated self-adjustment procedure with respect to its applicability for asymmetrical hearing loss (AHL). Self-adjusted settings were evaluated for speech recognition in noise and sound preference.
Participants were given the possibility to adjust the left and right hearing aid separately using a two-dimensional user interface. Two different adjustment sequences were tested. Realistic everyday sound scenes in a laboratory environment were presented. The difference between the ears regarding their speech recognition in noise was tested with two spatial conditions, unaided as well as with the prescriptive formula and the self-adjusted setting.
Nineteen experienced hearing aid users (median age 76 years) with different degrees of AHL were invited to participate in this study.
Participants adjusted a higher gain slope across frequency in the worse ear than in the better one. The two adjustment sequences resulted in significantly different adjustment durations and gain settings. The difference between the ears regarding speech recognition in noise did not change with the self-adjustment. Overall, group-mean effect sizes were small compared to the parameter space.
The adjustment procedure can be used also by hearing aid users with AHL to find a possibly preferred gain setting.
本研究调查了一种先前评估过的自我调整程序在不对称听力损失（AHL）中的适用性。对自我调整设置进行了噪声环境下语音识别和声音偏好方面的评估。
让参与者使用二维用户界面分别调整左右助听器。测试了两种不同的调整顺序。呈现了实验室环境中的真实日常声音场景。在两种空间条件下测试了双耳在噪声环境下语音识别的差异，即未佩戴助听器、使用处方公式设置以及自我调整设置的情况。
邀请了19名不同程度AHL的有经验的助听器使用者（年龄中位数76岁）参与本研究。
参与者在听力较差的耳朵中调整的跨频率增益斜率高于听力较好的耳朵。两种调整顺序导致调整持续时间和增益设置有显著差异。双耳在噪声环境下语音识别的差异并未因自我调整而改变。总体而言，与参数空间相比，组平均效应量较小。
AHL的助听器使用者也可以使用该调整程序来找到可能偏好的增益设置。
