利用人耳听觉感知上形成 的遮蔽效应（Masking Effect）所得到的遮噪门槛曲线（Masking Thresholds），决 定各个子频带所容许的最大量化误差，使得量化后的失真能不被听见。
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... lower thresholds 低阈,绝对阈 masking thresholds 掩蔽阈 of fatigue thresholds 疲劳阈 ...
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auditory masking thresholds 听觉掩蔽门限
·2,447,543篇论文数据，部分数据来源于NoteExpress
Methods the pure tone thresholds of 30 subjects (60 ears) were measured by pure tone audiometry and MCML was obtained by means of the same frequency tone masking test.
方法30例受试者(60耳)分别进行纯音测听，首先测出双耳的纯音听阈，然后应用同频音掩蔽试验测试各个频率的MCML。
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