python-ffmpeg音频裁剪

def music_cut():
    x='lq'
    music_path = "D:\PYcharm\ANIMS\myself_anim\movie\music\爱的箴言.wav"
    cmd = fr"ffmpeg  -i {music_path}  -vn -acodec copy -ss 00:00:10 -t 00:03:36 ./vedio/{x}.wav"
    os.system(cmd)