关于信号处理方面音效移频中解析信号的产生方法，该方法让人耳目一新，通过先设计频域，再求逆，时域上进行采样，得到两个FIR滤波器逼近希尔伯特变换器。-Aboat an efficient method of analytical signal generation in audio frequency shift.This method refreshing, first design in the frequency domain, then　sampling in the time domain, getting two FIR filters approximate Hilbert transform.