Python的Mp3音乐播放器，使用了Phonon库，能够实现播放列表和调整音效等功能。-Python Mp3 Music player, use the Phonon library, playlists and adjust to achieve sound and other functions.

能够自动找到所有可用的录音设备和播放设备, 实现边放边录. 主要用来测试音频系统和音频算法(Can automatically find all available recording equipment and playback equipment, play while record to test an audio system or algorithm)