说明：  语谱图是语音信号处理过程中的重要参数之一，直观地反映语音信号的动态频谱特征。语 谱图是将语音的时域信号转换成二维和三维图像信号的重要方法。介绍了语谱图的算法原理、关键技术和仿真流程，阐述了藏语辅音发音特征和拼读规律
(Spectrogram is one of the important parameters in the process of speech signal processing, which directly reflects the dynamic spectrum characteristics of speech signal. Spectrogram is an important method to transform speech time domain signals into two-dimensional and three-dimensional image signals. This paper introduces the algorithm principle, key technology and simulation flow of spectrogram, and expounds the pronunciation characteristics and spelling rules of Tibetan consonant.)