how to get file mp3 using audiosegment

Question

i have function to encryp steganography lsb. but when i want to open my mp3 file that can be convert to wav, there's error:

[WinError 2] The system cannot find the file specified

maybe how i open the file was wrong? here's my code:

def lsb2(filename,  message):
    print(filename) //F:\KULIAH\SEMESTER8\SKRIPSI\MusicLockApp\media\mp3\Jibaku_Shounen_Hanako-kun_EDTiny_Light-_Akari_Kito_Video_Lyrics_R9xi8Uq.mp3
    sound = AudioSegment.from_mp3(filename)
    sound.export("media/em/", format="wav")

    print(sound)

    song = wave.open(sound, mode='rb')
    frame_bytes = bytearray(list(song.readframes(song.getnframes())))

    bits = [int(x) for x in message]

    for i, bit in enumerate(bits):
        frame_bytes[i] = (frame_bytes[i] & 254) | bit
    
    frame_modified = bytes(frame_bytes)