Taking advantage of signal-sampling capability of DSP in Sound Blaster, the process from period-double bifurcation to chaos is demonstrated with the technique of double buffering.

• 利用计算机声霸卡中DSP的信号采集功能 ,采用双缓冲区技术 ,对蔡氏混沌电路的倍周期分叉走向混沌态的过程进行实验演示