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from collections import defaultdict |
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import os |
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import json |
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import csv |
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import datasets |
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_NAME="masri_dev" |
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_VERSION="1.0.0" |
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_AUDIO_EXTENSIONS=".flac" |
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_DESCRIPTION = """ |
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The MASRI-DEV CORPUS was created out of YouTube videos belonging to the channel of the University of Malta. It has a length of 1 hour and it is gender balanced, as it has the same number of male and female speakers. |
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""" |
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_CITATION = """ |
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@misc{carlosmenamasridev2020, |
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title={MASRI-DEV CORPUS: Audio and Transcriptions in Maltese extracted from the YouTube channel of the University of Malta.}, |
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author={Hernandez Mena, Carlos Daniel and Brincat, Ayrton Didier and Gatt, Albert and DeMarco, Andrea and Borg, Claudia and van der Plas, Lonneke and Meza Ruiz, Iván Vladimir}, |
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journal={MASRI Project, Malta}, |
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year={2020}, |
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url={https://www.um.edu.mt/projects/masri/}, |
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} |
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""" |
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_HOMEPAGE = "https://www.um.edu.mt/projects/masri/" |
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_LICENSE = "CC-BY-4.0. The copyright remains with the original owners of the video. See https://creativecommons.org/licenses/by/4.0/" |
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_BASE_DATA_DIR = "corpus/" |
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_METADATA_DEV = os.path.join(_BASE_DATA_DIR,"files", "metadata_dev.tsv") |
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_TARS_DEV = os.path.join(_BASE_DATA_DIR,"files", "tars_dev.paths") |
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class MasriDevConfig(datasets.BuilderConfig): |
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"""BuilderConfig for MASRI-DEV Corpus""" |
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def __init__(self, name, **kwargs): |
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name=_NAME |
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super().__init__(name=name, **kwargs) |
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class MasriDev(datasets.GeneratorBasedBuilder): |
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"""MASRI-DEV Corpus""" |
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VERSION = datasets.Version(_VERSION) |
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BUILDER_CONFIGS = [ |
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MasriDevConfig( |
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name=_NAME, |
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version=datasets.Version(_VERSION), |
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) |
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] |
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def _info(self): |
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features = datasets.Features( |
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{ |
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"audio_id": datasets.Value("string"), |
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"audio": datasets.Audio(sampling_rate=16000), |
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"speaker_id": datasets.Value("string"), |
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"gender": datasets.Value("string"), |
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"duration": datasets.Value("float32"), |
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"normalized_text": datasets.Value("string"), |
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} |
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) |
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return datasets.DatasetInfo( |
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description=_DESCRIPTION, |
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features=features, |
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homepage=_HOMEPAGE, |
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license=_LICENSE, |
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citation=_CITATION, |
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) |
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def _split_generators(self, dl_manager): |
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metadata_dev=dl_manager.download_and_extract(_METADATA_DEV) |
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tars_dev=dl_manager.download_and_extract(_TARS_DEV) |
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hash_tar_files=defaultdict(dict) |
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with open(tars_dev,'r') as f: |
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hash_tar_files['dev']=[path.replace('\n','') for path in f] |
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hash_meta_paths={"dev":metadata_dev} |
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audio_paths = dl_manager.download(hash_tar_files) |
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splits=["dev"] |
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local_extracted_audio_paths = ( |
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dl_manager.extract(audio_paths) if not dl_manager.is_streaming else |
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{ |
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split:[None] * len(audio_paths[split]) for split in splits |
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} |
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) |
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return [ |
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datasets.SplitGenerator( |
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name=datasets.Split.VALIDATION, |
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gen_kwargs={ |
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"audio_archives": [dl_manager.iter_archive(archive) for archive in audio_paths["dev"]], |
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"local_extracted_archives_paths": local_extracted_audio_paths["dev"], |
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"metadata_paths": hash_meta_paths["dev"], |
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} |
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), |
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] |
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def _generate_examples(self, audio_archives, local_extracted_archives_paths, metadata_paths): |
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features = ["speaker_id","gender","duration","normalized_text"] |
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with open(metadata_paths) as f: |
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metadata = {x["audio_id"]: x for x in csv.DictReader(f, delimiter="\t")} |
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for audio_archive, local_extracted_archive_path in zip(audio_archives, local_extracted_archives_paths): |
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for audio_filename, audio_file in audio_archive: |
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audio_id = audio_filename.split(os.sep)[-1].split(_AUDIO_EXTENSIONS)[0] |
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path = os.path.join(local_extracted_archive_path, audio_filename) if local_extracted_archive_path else audio_filename |
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yield audio_id, { |
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"audio_id": audio_id, |
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**{feature: metadata[audio_id][feature] for feature in features}, |
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"audio": {"path": path, "bytes": audio_file.read()}, |
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} |
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