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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="ravnursson_asr" |
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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 corpus \"RAVNURSSON FAROESE SPEECH AND TRANSCRIPTS\" (or RAVNURSSON Corpus for short) is a collection of speech recordings with transcriptions intended for Automatic Speech Recognition (ASR) applications in the language that is spoken at the Faroe Islands (Faroese). It was curated at the Reykjavík University (RU) in 2022. |
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""" |
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_CITATION = """ |
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@misc{carlosmenaravnursson2022, |
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title={Ravnursson Faroese Speech and Transcripts}, |
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author={Hernandez Mena, Carlos Daniel and Simonsen, Annika}, |
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year={2022}, |
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url={http://hdl.handle.net/20.500.12537/276}, |
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} |
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""" |
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_HOMEPAGE = "http://hdl.handle.net/20.500.12537/276" |
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_LICENSE = "CC-BY-4.0, See https://creativecommons.org/licenses/by/4.0/" |
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_BASE_DATA_DIR = "corpus/" |
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_METADATA_TRAIN = os.path.join(_BASE_DATA_DIR,"files","metadata_train.tsv") |
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_METADATA_TEST = os.path.join(_BASE_DATA_DIR,"files", "metadata_test.tsv") |
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_METADATA_DEV = os.path.join(_BASE_DATA_DIR,"files", "metadata_dev.tsv") |
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_TARS_TRAIN = os.path.join(_BASE_DATA_DIR,"files","tars_train.paths") |
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_TARS_TEST = os.path.join(_BASE_DATA_DIR,"files", "tars_test.paths") |
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_TARS_DEV = os.path.join(_BASE_DATA_DIR,"files", "tars_dev.paths") |
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class RavnurssonAsrConfig(datasets.BuilderConfig): |
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"""BuilderConfig for Ravnursson 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 RavnurssonAsr(datasets.GeneratorBasedBuilder): |
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"""Ravnursson Faroese Speech and Transcripts""" |
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VERSION = datasets.Version(_VERSION) |
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BUILDER_CONFIGS = [ |
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RavnurssonAsrConfig( |
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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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"age": datasets.Value("string"), |
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"duration": datasets.Value("float32"), |
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"normalized_text": datasets.Value("string"), |
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"dialect": 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_train=dl_manager.download_and_extract(_METADATA_TRAIN) |
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metadata_test=dl_manager.download_and_extract(_METADATA_TEST) |
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metadata_dev=dl_manager.download_and_extract(_METADATA_DEV) |
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tars_train=dl_manager.download_and_extract(_TARS_TRAIN) |
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tars_test=dl_manager.download_and_extract(_TARS_TEST) |
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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_train,'r') as f: |
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hash_tar_files['train']=[path.replace('\n','') for path in f] |
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with open(tars_test,'r') as f: |
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hash_tar_files['test']=[path.replace('\n','') for path in f] |
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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={"train":metadata_train,"test":metadata_test,"dev":metadata_dev} |
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audio_paths = dl_manager.download(hash_tar_files) |
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splits=["train","dev","test"] |
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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.TRAIN, |
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gen_kwargs={ |
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"audio_archives":[dl_manager.iter_archive(archive) for archive in audio_paths["train"]], |
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"local_extracted_archives_paths": local_extracted_audio_paths["train"], |
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"metadata_paths": hash_meta_paths["train"], |
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} |
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), |
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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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datasets.SplitGenerator( |
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name=datasets.Split.TEST, |
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gen_kwargs={ |
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"audio_archives": [dl_manager.iter_archive(archive) for archive in audio_paths["test"]], |
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"local_extracted_archives_paths": local_extracted_audio_paths["test"], |
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"metadata_paths": hash_meta_paths["test"], |
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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","age","duration","normalized_text","dialect"] |
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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 =os.path.splitext(os.path.basename(audio_filename))[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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