类似于电脑中的音量控制,可以与电脑中的音量控制实现同步-just like our PC s volume control

这是控制PC的麦克风音量程序,经过少许修改后应用到project中,收到很好的效果.适合学习多媒体和音频的人所参考-This is the PC' s microphone volume control procedures applied with small modifications to the project, the receipt of excellent results. For learning multimedia and audio reference person

经典QT例程，控制PC声卡进行音频采集和输出-A classical QT example, it can control PC sound card for audio input and output