根据语音频谱分析和频谱图显示的原理与算法，用MATLAB实现一种可在PC机上实现的信号频谱分析与频谱图伪彩色映射显示的方法。-According to voice spectrum analysis and spectrum diagram shows the principle and algorithm, using MATLAB to achieve a realization of machines in the PC spectrum of the signal frequency spectrum analysis and pseudo-color map display method.