控制声卡按照一定频率,音量发声,是个正弦信号-Control the sound card in accordance with a certain frequency, sound volume, is a sinusoidal signal

一个正弦波的音频信号发生器的代码,使用vc6编程,可以改变频率驱动声卡发出声音-This is a sine audio signal generator code by VC++ , you can change the frequency drive sound card play it