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本文提出了一种显示快变信号动态频谱的程序.信号先作线性预测分析,逐帧提取频谱包络,然后以不同的符号来代表频率样点的强度,打印出一幅以符号浓度代表强度轴,以走纸方向代表时间轴,以纸的宽度方向为频率轴的三维频谱图.这个软件在频率范围、频率分辨率、强度等级划分等方面有相当大的灵活性. 本文是在1982年全国第三届声学报告会的工作基础上修改更新而成的.
In this paper, we present a program to show the dynamic spectrum of fast changing signal.Firstly, the signal is used for linear predictive analysis, the spectral envelope is extracted frame by frame, and then the intensity of the frequency sample is represented by different symbols, Axis, which represents the time axis in the direction of the paper feed and the three-dimensional spectrogram with the width direction of the paper as the frequency axis.This software has considerable flexibility in the frequency range, frequency resolution, intensity level division, etc. This article was published in 1982 National Third Acoustical Conference on the basis of the work of the revised and updated.