载波带宽对双耳内或双耳间听觉和电听觉模拟整合的影响。
Effect of carrier bandwidth on integration of simulations of acoustic and electric hearing within or across ears.
作者信息
Fu Qian-Jie, Galvin John J, Wang Xiaosong
机构信息
Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, 2100 West 3rd Street, Suite 100, Los Angeles, California 90057, USA
出版信息
J Acoust Soc Am. 2017 Dec;142(6):EL561. doi: 10.1121/1.5017530.
Abstract
Differences in current spread and/or spread of excitation may differently affect integration of acoustic and electric hearing within (electric-acoustic stimulation, or EAS) or across ears (bimodal). In this study, vowel recognition was measured in normal-hearing subjects listening to simulations of cochlear implant (CI), EAS, and bimodal listening. Residual acoustic hearing was limited between 0.1 and 0.6 kHz. The carrier bandwidth in the CI simulations was varied across carriers: broad-band noise, narrow-band noise, and sine waves. Results showed that reducing the bandwidth (and the inherent noise fluctuations) in the CI simulations significantly affected CI-only and bimodal performance, but not EAS performance.
摘要
电流传播和/或兴奋传播的差异可能会对（电-声刺激，即EAS）耳内或（双耳模式）跨耳的声学和电听觉整合产生不同影响。在本研究中，对听力正常的受试者进行了元音识别测试，这些受试者聆听了人工耳蜗（CI）、电-声刺激和双耳模式聆听的模拟声音。残余声学听力限制在0.1至0.6kHz之间。CI模拟中的载波带宽因载波不同而变化：宽带噪声、窄带噪声和正弦波。结果表明，在CI模拟中降低带宽（以及固有的噪声波动）会显著影响仅使用CI和双耳模式的表现，但不会影响电-声刺激的表现。
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本文引用的文献
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