Zeros of Z-transform representation with application to source-filter separation in speech
Zeros of Z-transform representation with application to source-filter separation in speech
复制标题
Z 变换表示的零点及其在语音中源滤波器分离中的应用
DOI：
10.1109/lsp.2005.843770
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发表时间：
2005
影响因子：
3.9
通讯作者：
T. Dutoit
中科院分区：
文献类型：
--
作者：
Baris Bozkurt;B. Doval;C. d’Alessandro;T. Dutoit
我们提出了一种新的频谱表示，称为z变换的零点（ZZT），它是信号的z变换的全零表示。我们表明在声门流和声道贡献的语音信号的ZZT表示中存在不同的模式。提出了一种基于ZZT的源束分离分解方法。zzt分解包括根据0在z平面上的位置将它们分成两组。这种类型的分解导致声道在z域的流动贡献（没有返回阶段）与声道贡献分离。
We propose a new spectral representation called the zeros of z-transform (ZZT), which is an all-zero representation of the z-transform of the signal. We show that separate patterns exist in ZZT representations of speech signals for the glottal flow and the vocal tract contributions. A decomposition method for source-tract separation is presented based on ZZT. The ZZT-decomposition consists in grouping the zeros into two sets, according to their location in the z-plane. This type of decomposition leads to separating glottal flow contribution (without a return phase) from vocal tract contribution in the z domain.