此外，一些典型情况的嘶哑语音信号被数字信号处理方法分析，这些方法包括FFT、LPC、倒谱技术、伪彩色编码等。
Moreover, hoarse speech signals of some typical cases are analyzed by the methods of digital signal processing, including FFT, LPC, Cepstrum.
典型信号的拉普拉斯变换对有表可查，有些信号的拉普拉斯积分式也有积分表可查，但实际上还有一些信号是查不到的。
Laplace transform pairs of typical signals can be looked up in the table of Laplace transforms. Laplace integral forms of some signals can be calculated with the table of integrals.
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