语谱图是对一段语音在频域各个频段的能量的一种显示方式，一般做法是把语音分成若干帧，加窗后作FFT，求出每一帧不同频率的能量，求出语音每一帧不同频率的能量，一般是不同能量显示成不同颜色，显示成所谓语谱图。-The spectrogram display period of a voice in the energy band of the frequency domain, the general practice is the voice to be divided into several frames, plus window made after FFT, calculate the energy of each frame at different frequencies, find the voice of each the energy of the frame at different frequencies, different energy displayed as different colors, showing a so-called spectrogram.