一个新款的音量控制源码，可以控制耳机音量和mic音量，还可以播放WAV文件。-a new style of sound source control, headphone volume control and mic volume, also be broadcast WAV document.

主要实现的功能是对电脑的音量进行控制,一些程序中可能会用到-The main functions of the computer' s volume control, some of the procedures that may be used