National Acoustic Laboratories, Chatswood, New South Wales, Australia.
Int J Audiol. 2010 Jan;49(1):14-23. doi: 10.3109/14992020903160876.
The aim of this study was to evaluate a clinical test proposed to verify the output setting of hearing aids. Across three test sites, 56 bilaterally fitted hearing aid users were recruited. They answered questions about real-life loudness discomfort experiences and then completed the output verification test. Using an ascending method, a 1,500 kHz narrowband noise and a selection of broadband environmental noises were presented in 5 dB steps from 80 to 90 dB SPL. Response options included 'acceptably loud', and 'uncomfortably loud'. A swept pure tone presented at 90 dB SPL was also administered. Some loudness discomfort was reportedly experienced in real life by 82% of the participants. Generally, the test noises produced low specificity, with the 1,500 kHz narrowband noise being the best predictor of loudness discomfort experiences in real life, while the swept pure tone showed low sensitivity. Individual reactions to specific sounds and the test equipment and environment used are argued to affect the laboratory performance. A better understanding of these factors is needed before the test can be improved. an ser mejoradas.
这项研究的目的是评估一种拟用于验证助听器输出设置的临床测试。在三个测试地点，招募了 56 名双侧配备助听器的使用者。他们回答了关于现实生活中响度不适体验的问题，然后完成了输出验证测试。使用递增法，从 80 到 90 dB SPL 以 5 dB 的步长呈现 1,500 kHz 窄带噪声和一系列宽带环境噪声。响应选项包括“可接受的响亮”和“不舒服的响亮”。还施测了 90 dB SPL 的扫频纯音。据报道，82%的参与者在现实生活中经历了一些响度不适。通常，测试噪声的特异性较低，1,500 kHz 窄带噪声是现实生活中响度不适体验的最佳预测因子，而扫频纯音的灵敏度较低。个体对特定声音以及测试设备和环境的反应被认为会影响实验室性能。在改进测试之前，需要更好地了解这些因素。
