关于音频接口基本程序的实验报告，有两个实验，一个是播放wav格式的音乐，另一个是可以实现先录音几秒再放音的程序-a report about audio ioctl,includes two parts one is designed to Play wav format of music,the other can record a few seconds of sound and then play it.

在Linux中用Qt编出一音乐播放器，在上位机上实验验证，实现功能-In Linux using Qt made ​ ​ out of a music player, experiments on the host machine, to achieve functional