Department of Speech, Language and Hearing Sciences, Boston University, Boston, Massachusetts 02215,
JASA Express Lett. 2024 Sep 1;4(9). doi: 10.1121/10.0028381.
This study examined the influence of stimulus properties on sound externalization when listening with hearing aids. Normally hearing listeners were presented with broadband "tokens" (environmental sounds and speech) from loudspeakers, and rated externalization using a continuous scale. In separate blocks, they listened unaided or while wearing behind-the-ear hearing aids with closed domes and low gain (linear or compressive). There was a significant influence of token on ratings, even for unaided listening, and the effect of hearing aids depended on token. An acoustic analysis indicated that hearing aids were more likely to disrupt externalization for peakier sounds with a low-frequency emphasis.
本研究探讨了在使用助听器聆听时，刺激特性对声音外部化的影响。正常听力的听众通过扬声器接收宽带“令牌”（环境声音和言语），并使用连续量表对外部化进行评分。在单独的模块中，他们在不佩戴助听器或佩戴带有封闭耳模和低增益（线性或压缩）的耳后助听器的情况下进行聆听。即使在不佩戴助听器的情况下，令牌对评分也有显著影响，助听器的效果取决于令牌。声学分析表明，助听器更有可能破坏具有低频强调的峰值声音的外部化。
