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梅尔倒谱参数

于 2022-01-26 发布 文件大小:2.32 kB
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实现了一个识别梅尔倒谱参数前端。在声音处理,梅尔频率倒谱系数(MFCC)是声音的短期功率谱的表示,基于线性余弦对频率的非线性梅尔刻度变换对数功率频谱。梅尔频率倒谱系数(MFCCs)为系数,它们共同构成了一个MFC。它们是衍生自式音频剪辑的倒频谱表示(一个非线性的“频谱对的一谱”)的。的倒谱和梅尔频率倒谱之间的差别在于,在MFC中,在频带被等距间隔的梅尔刻度,它更接近于人类的听觉系统的响应比在普通倒频谱中使用的线性间隔的频带。这个频率弯折可允许声音更好的表示,例如,音频压缩。

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