Use ffmpeg with the option "-hide_banner" to suppress unnecessary text to the terminal

Using "-hide_banner" helps clean-up the terminal text.

Replace: subprocess.run(['ffmpeg', '-y', '-f', 'concat', '-safe', '0', '-i', wav_list_txt, '-c', 'copy', concat_file_path]) With: subprocess.run(['ffmpeg', '-hide_banner', '-y', '-f', 'concat', '-safe', '0', '-i', wav_list_txt, '-c', 'copy', concat_file_path]) Replace:

        'ffmpeg',
        '-y',  # Overwrite output

With:

        'ffmpeg',
        '-y',  # Overwrite output
        '-hide_banner', # Remove the ffmpeg banner