计算机语声动态谱实时伪彩色编码显示研究

A Study on the Realtime Pseudocolor Encoding Display of Dynamic Spectrum of Speech Signals

本文介绍一种计算机语声动态功率谱、动态倒频谱及动态线性预测谱实时伪彩色编码显示的新方法。应用这种方法所获得的伪彩色谱图便于直观判读,也可作精确测量。此外,本文应用这种方法提取语声倒谱的积谱、谱矩距离等语音时变特征,并加以伪彩色编码显示。我们还应用上述方法对某些典型的常态语声及变态语声进行了观测,在文中给出了实验结果。

In this paper, a new method of the realtime pseudocolor encoding display of the power spectrum, cepstrum and linear predictive spectrum is presented. The method is very favourable for analysis, reading and decision of sound signals. Moreover, the applications of this method to feature extraction of cepstrum product and spectral moment distance are described. In this way, some typical examples of the normal speech and abnormal speech are analysed, and some experimental results are given.