J. Kiss, F. Tóth, L. Rovó, Kincsõ Venczel, Donát Drexler, J. Jóri, J. Czigner
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引用次数: 15
摘要
我们研究的目的是确定在不同的声音和噪音暴露后，耳声发射(DPOAE)的强度是如何变化的。我们对20名听力正常的健康人进行了检查。在曝光前后以0.5 ~ 6khz的频率间隔记录dpoae。我们将受试者暴露于0.5、1、2、4和6 kHz的纯音和宽带噪声(强度:80 dB HL，持续时间:3分钟)。我们得出结论，在大多数频率下，dpoae的振幅在暴露后立即改变。DPOAE强度在中频范围(1 ~ 2 kHz)的某些频率下降低，在低频，特别是在高频时增加。
Distortion-product otoacoustic emission (DPOAE) following pure tone and wide-band noise exposures
The aim of our investigations was to determine how the intensity of distortion-product otoacoustic emission (DPOAE) changes following different sound and noise exposures. We performed examinations on 20 healthy people with normal hearing. DPOAEs were recorded scanning the 0.5-6 kHz frequency interval before and after the exposures. We exposed the subjects to 0.5, 1, 2, 4 and 6 kHz pure tones and wide-band noise (intensity: 80 dB HL, duration: 3 minutes). We conclude that the amplitudes of DPOAEs changed immediately after exposures at most frequencies. DPOAE intensities decreased at some frequencies in the middle frequency range (1-2 kHz), and increased at low and particularly at high frequencies.
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