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.

使用python库里面的pydub，numpy来计算音频文件的总谐波失真(use python module pydub to calculate the wav thd)