Trigger exception when use AV_MossFormer2_TSE_16K model

[xym4869]

code:

def clearvoice_extraction_by_offline(
    input_wav, output_wav):
    temp_audio_file = r"tempFileFolder/temp_16k.wav"
    out_folder = r"tempFileFolder/extracted"
    if os.path.exists(out_folder):
        shutil.rmtree(out_folder)
    os.makedirs(out_folder)
    _, default_sr = librosa.load(input_wav, sr=None)
    if default_sr != 16000:
        cmd_line = "sox {} -r 16k -b 16 {}".format(input_wav, temp_audio_file)
        print(cmd_line)
        os.system(cmd_line)
    else:
        shutil.copyfile(input_wav, temp_audio_file)

    cv_tse = ClearVoice(
        task='target_speaker_extraction',
        model_names=['AV_MossFormer2_TSE_16K']
    )
    cv_tse(
        input_path=temp_audio_file,
        online_write=True,
        output_path=out_folder
    )
    out_wav = os.path.join(out_folder, 'extracted_speech.wav')
    shutil.copyfile(out_wav, output_wav)
    print(cmd_line)
    os.system(cmd_line)
    os.remove(temp_audio_file)
    shutil.rmtree(out_folder)

temp_audio_file plays well, but triggered exception: 'charmap' codec can't decode byte 0x81 in position 652: character maps to .