Previous studies investigated wind noise with Behind-The-Ear (BTE) hearing aids, but not the more common mini-BTE style of device, which typically has a smaller shell and microphones located more deeply behind the pinna. The current study investigated wind-noise levels across one BTE and two mini-BTE devices, and between the front and rear omni-directional microphones within devices. Levels were measured at two wind speeds (3 and 6 m/s) and 36 wind azimuths (10 degrees increments). The pattern of wind-noise level versus azimuth was similar across mini-BTE devices, and differed for the BTE device. However, mean levels were markedly different across mini-BTE devices, and could be higher, lower, or similar to those of the BTE device. For within-device level differences, the pattern and mean across azimuth were similar across mini-BTE devices, and differed for the BTE device. Wind noise had the potential to slightly or severely reduce speech intelligibility at 3 or 6 m/s, respectively, across all devices. (C) 2015 Acoustical Society of America.
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机译：以前的研究使用耳后式（BTE）助听器研究风噪声，但不是更常见的微型BTE式设备，后者通常具有较小的外壳，并且麦克风位于耳廓后方更深处。当前的研究调查了一个BTE和两个mini-BTE设备之间以及设备内部前后全向麦克风之间的风噪水平。在两个风速（3和6 m / s）和36个风向（以10度为增量）下测量液位。微型BTE设备的风噪水平与方位角的模式相似，而BTE设备则不同。但是，平均水平在微型BTE设备之间明显不同，并且可能更高，更低或与BTE设备相似。对于设备内部的电平差异，微型BTE设备上的方位角方向图和均值相似，而BTE设备之间的方向图和均值不同。在所有设备上，风噪声都有可能分别以3或6 m / s的幅度轻微或严重降低语音清晰度。 （C）2015年美国声学学会。
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