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基于能量谱熵的英语摩擦音检测方法*

, PP. 554-560

Keywords: 能量谱熵,摩擦音检测,音素边界检测

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Abstract:

根据摩擦音发声时的频谱特点,提出一种基于能量谱熵的摩擦音检测方法.该方法首先利用不同音素的语谱能量特点检测出音素边界.然后计算每个语音段的能量谱熵,并将超过阈值的语音段作为候选.最后根据语音段的长度、开始结束时的能量突变等对特征候选语音段后处理,去除错误候选.实验表明,在干净环境中并且容错误差为20ms时,摩擦音的检测率达到96.9%.

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