RELATION OF PURE TONE THRESHOLDS TO BACKGROUND NOISE LEVEL IN ATLANTIC COD (GADUS MORHUA)
RELATION OF PURE TONE THRESHOLDS TO BACKGROUND NOISE LEVEL IN ATLANTIC COD (GADUS MORHUA)
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DOI：
10.1139/f68-101
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发表时间：
1968-01-01
期刊：
影响因子：
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通讯作者：
BUERKLE, U
中科院分区：
文献类型：
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作者：
BUERKLE, U
条件反射程序被用来确定听觉阈值的鳕鱼在频率35.3，70.7，141，283，和400赫兹在4个级别的背景噪声。噪声产生在以测试频率为中心的倍频程带中，并且在-14 dB至+4 dB（re 1微巴）的水平范围内。高达283 Hz的阈值直接随背景噪声而变化，并且阈值处的信噪比水平在每个频率的所有背景噪声水平下保持大致相同。在400 Hz下的持续时间要高得多，并且与噪声没有关系。计算平均信噪比水平。
A conditioning procedure was used to determine auditory thresholds of cod at frequencies 35.3, 70.7, 141, 283, and 400 Hz at 4 levels of background noise. The noise was produced in octave bands centered at the test frequencies, and ranged in level from -14 db to +4 db (re 1 microbar). Up to 283 Hz thresholds varied directly with background noise, and signal-to-nolse levels at thresholds remained approximately the same at all background noise levels for each frequency. Thresholds at 400 Hz were much higher and showed no relationship to noise. Mean slgnal-to-noise levels are calculated.