语谱图的横坐标是时间，纵坐标是频率，坐标点值为语音数据能量。由于是采用二维平面表达三维信息，所以能量值的大小是通过颜色来表示的，颜色深，表示该点的语音能量越强。(The spectral abscissa graph is time, the vertical axis is the frequency of speech data for energy point coordinates. Since the two-dimensional information is expressed in two-dimensional planes, the magnitude of the energy value is represented by color, and the darker the color is, the stronger the speech energy of the point is.)