助听器瞬态噪声抑制策略(AntiShockTM)对聆听舒适度的影响研究

摘要

目的 对比评估助听器瞬态噪声抑制策略(AntiShockTM)关闭与开启状态下的聆听舒适度,分析AntiShockTM对聆听舒适度的影响.方法 24名无助听器佩带经验的感音神经性听力损失患者双耳选配助听器,分别在AntiShockTM关闭和开启状态下评估其聆听舒适度.结果 ①在言语输出强度为55 dB SPL时,受试者将AntiShockTM对聆听舒适度的帮助作用选择为"有部分帮助"或更佳级别的概率与机会值(50%)无显著区别,在言语输出强度为70 dBSPL条件下,受试者将AntiShockTM对聆听舒适度的帮助作用选择为"有部分帮助"或更佳级别的概率显著高于机会值.②在全部聆听条件下,认为AntiShockTM开启对聆听舒适度没有帮助、有部分帮助、有帮助以及非常有帮助的受试者比例分别为35.91%、19.83%、31.47%以及12.78%.③在言语混合瞬态噪声条件下,认为AntiShockTM开启对聆听舒适度没有帮助、有部分帮助,有帮助以及非常有帮助的受试者比例分别为34.42%、19.33%、33.29%以及13.02%.④在言语、环境噪声混合瞬态噪声条件下,认为AntiShockTM开启对聆听舒适度没有帮助、有部分帮助,有帮助以及非常有帮助的受试者比例分别为37.67%、20.42%、29.30%以及12.56%.结论 在本实验室评估环境下,AntiShockTM有助于改善聆听舒适度.%Objective A current technology for detecting and controlling transient noises in hearing aids (AntiShockTM) was evaluated regarding its effects on the listening comfort..Methods Twenty-four subjects with sensorineural hearing loss participated in the study.In a single-blinded paradigm, the subjects were asked to rate benefits of listening comfort to listen to mandarin speech under the conditions of the on and off of the AntiShockTM.Results ① Statistics showed that odds of rating "somewhat helpful" or better was not significantly higher than chance level for speech intensity at 55 dB SPL.However, significant odds of rating "somewhat helpful" or better were obtained for the speech intensity of 70 dB SPL.②Under all the listening conditions, the AntiShockTM was ranked as not helpful at all, somewhat helpful, helpful and very helpful at 35.9％, 19.8％, 31.5％ and 12.8％, respectively.③Under the listening conditions of speech and transient, the AntiShockTM was ranked as not helpful at all, somewhat helpful, helpful and very helpful at 34.4％, 19.3％, 33.3％ and 13.0％, respectively.④Under the listening condition of speech, environmental noise and transient, the AntiShockTM was ranked as not helpful at all,somewhat helpful, helpful and very helpful at 37.7 ％, 20.4％, 29.3 ％ and 12.6 ％, respectively.Conclusion The majority of thesubjects noted the algorithm to "helpful" in laboratory evaluation.