audio_tracks = []
audio_filtered = [filter(lambda x: x['channels'] <= 6, audio_representations)]
if config_dict['audio_langs']:
    for req_audio_lang in config_dict['audio_langs']:
        for sorted_audio in audio_filtered:
            if req_audio_lang == sorted_audio['lang_code'] :
                audio_tracks.append(sorted_audio)
                break


 if req_audio_lang == sorted_audio['lang_code'] :
TypeError: 'filter' object is not subscriptable