Effect of carrier bandwidth on integration of simulations of acoustic and electric hearing within or across ears
Effect of carrier bandwidth on integration of simulations of acoustic and electric hearing within or across ears
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DOI：
10.1121/1.5017530
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发表时间：
2017-12-01
影响因子：
2.4
通讯作者：
Wang, Xiaosong
中科院分区：
文献类型：
--
作者：
Fu, Qian-Jie;Galvin, John J., III;Wang, Xiaosong
电流传播和/或激励传播的差异可能会不同地影响耳内(电声刺激或EAS)或跨耳(双峰)的声和电听力整合。在这项研究中，对听力正常的受试者进行了元音识别的测量，这些受试者分别听了人工耳蜗术(CI)、EAS和双峰听力的模拟。残余声学听力限制在0.1~0.6 kHz。CI模拟中的载波带宽因载波而异：宽带噪声、窄带噪声和正弦波。结果表明，减少CI模拟中的带宽(和固有噪声波动)显著影响仅CI和双模性能，但不影响EAS性能。(C)2017年美国声学学会
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. (C) 2017 Acoustical Society of America