利用计数器来实现三角波的程序设计任务，用于信号发生器-Use counters to achieve the triangular wave of program design tasks, for the signal generator

自制软件，实现频谱分析。能显示信号与频谱图。主要是对正弦信号和三角波进行一维FFT变换，得到频谱图。-Self-made software, the realization of spectral analysis. Showing the signal and frequency spectrum. Mainly sinusoidal signal and triangular wave transform one-dimensional FFT, the frequency spectrum

多功能函数信号发生器，频率计，可产生三角波，方波，正炫波，锯此波，且波形幅度和频率可步进调节，最高频率可达40MHz-Multi-function signal generator, frequency counter, can generate the triangular wave, square wave, is hyun waves, saw this wave, and wave amplitude and frequency adjustment can be stepper, th

计算一组声音信号的MFCC 和 设计三角滤波器-compute the MFCC of input signal and triangular filter