o SiJ@sHdZddlZddlZddlZddlmZddlmZddlm Z ddl m Z m Z m Z mZmZmZddlmZddlmZmZdd lmZmZdd lmZdd lmZmZdd lmZm Z d Z!dZ"dedede eeeffddZ# dde$dede%deeeffddZ&  ddede ede%de e$e e$eeeffffddZ'dS)a About the librilight corpus Libri-light is a benchmark for the training of automatic speech recognition (ASR) systems with limited or no supervision. It contains a large dataset of 60K hours of unlabelled speech from audiobooks in English and a small labelled dataset (10h, 1h, and 10 min) plus metrics, trainable baseline models, and pretrained models that use these datasets. It is covered in more detail at https://arxiv.org/abs/1912.07875 This data is very huge - please download manually at LIBRILIGHT_URL. N) defaultdict)ThreadPoolExecutor)Path)DictListOptionalSequenceTupleUnion)tqdm) Recording RecordingSet) fix_manifests$validate_recordings_and_supervisions)manifests_exist)SupervisionSegmentSupervisionSet)Pathlike add_durations)smallmediumlarge)z8https://dl.fbaipublicfiles.com/librilight/data/small.tarz9https://dl.fbaipublicfiles.com/librilight/data/medium.tarz8https://dl.fbaipublicfiles.com/librilight/data/large.tar corpus_dir audio_pathreturnc Cs t|ddt|dd}|}|s"td|dSt|dd}t|}t|}|d}|d}Wdn1sFwYt j ||d }g} d } d } |D]&} | t |d t| || d t | d | d  | dd d|d| d 7} qZ|| fS)Nz.flac/zNo such file: flacjsonspeakervoice_activity)path recording_idri>_) sampling_rateEnglish)idr"startdurationchannellanguager)strreplaceresolveis_fileloggingwarningopenrloadr from_fileappendrr) rr file_nameaudio_info_pathf audio_infosr vad_infos recordingsegments segment_seqr%vad_infor?M/home/ubuntu/.local/lib/python3.10/site-packages/lhotse/recipes/librilight.py_parse_utterance)sD     rAr$subsetnum_jobsc Cst|}||}t|d}t|Z}g}g}g}t|ddD] } ||t|| q t|ddD]} | } | dur>q3| \} } || | | q3t |}t |}t||\}}t||Wd||fS1spwY||fS)z Returns the RecodingSet and SupervisionSet given a dataset part. :param subset: str, the name of the subset. :param corpus_dir: Pathlike, the path of the data dir. :return: the RecodingSet and SupervisionSet for train and valid. z*.flaczDistributing tasksdesc ProcessingN)rlistrglobrr r5submitrAresultextendr from_recordingsr from_segmentsrr)rBrrC part_path audio_pathsexfutures recordings supervisionsrfuturerJr;r< recording_setsupervision_setr?r?r@_prepare_subsetUs0        rW output_dircCst|}|sJd|tdt}|dur%t|}|jdddtt}t|ddD]E}td|t ||d d d rKtd |d q/t |||\}}|durm| |d|d| |d|d||d||<q/|S)aH Returns the manifests which consist of the Recordings and Supervisions :param corpus_dir: Path to the LibriLight dataset. :param output_dir: Pathlike, the path where to write the manifests. :return: a Dict whose key is the dataset part, and the value is Dicts with the keys 'recordings' and 'supervisions'. zNo such directory: zPreparing LibriLight...NT)parentsexist_okz Dataset partsrDzProcessing LibriLight subset: librilightzjsonl.gz)partrXprefixsuffixzLibriLight subset: z already prepared - skipping.librilight_supervisions_z .jsonl.gzlibrilight_recordings_)rRrS) ris_dirr0info LIBRILIGHTmkdirrdictr rrWto_file)rrXrCsubsets manifestsr\rUrVr?r?r@prepare_librilight}s4  ri)r$)Nr$)(__doc__rr0os collectionsrconcurrent.futures.threadrpathlibrtypingrrrrr r tqdm.autor lhotse.audior r lhotse.qarrlhotse.recipes.utilsrlhotse.supervisionrr lhotse.utilsrrrcLIBRILIGHT_URLrAr,intrWrir?r?r?r@sX       /  *