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# Copyright 2020 The HuggingFace Datasets Authors and the current dataset script contributor.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Lint as: python3
"""NB Samtale: Norwegian conversation speech corpus"""
from collections import defaultdict
from email.mime import audio
from email.policy import default
from importlib import metadata
import io
import json
import os
from re import split
import tarfile
from typing import List
from huggingface_hub import hf_hub_url
import datasets
from datasets.packaged_modules.parquet.parquet import Parquet
from datasets.tasks import AutomaticSpeechRecognition
from datasets import ClassLabel
# TODO: Add BibTeX citation
# Find for instance the citation on arxiv or on the dataset repo/website
_DESCRIPTION = """\
NB Samtale is a speech corpus made by the Language Bank at the National Library of Norway.
The corpus contains orthographically transcribed speech from podcasts and recordings of live events at the National Library.
The corpus is intended as an open source dataset for Automatic Speech Recognition (ASR) development,
and is specifically aimed at improving ASR systems’ handle on conversational speech.
"""
_HOMEPAGE = "https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-85/"
_LICENSE = "CC-ZERO-license"
_CITATION = """\
"""
# TODO: Add link to the official dataset URLs here
# The HuggingFace Datasets library doesn't host the datasets but only points to the original files.
# This can be an arbitrary nested dict/list of URLs (see below in `_split_generators` method)
# Source data: https://www.nb.no/sbfil/taledata/nb_samtale.zip
_DATA_URL= "https://huggingface.co./datasets/Sprakbanken/nb_samtale/resolve/main/data"
#_DATA_SPLITS = {
# "train": ["train_bm_1.tar.gz", "train_nn_1.tar.gz"],
# "dev": ["dev_bm_1.tar.gz", "dev_nn_1.tar.gz"],
# "test": ["test_bm_1.tar.gz", "test_nn_1.tar.gz"],
#}
class NBSamtaleConfig(datasets.BuilderConfig):
"""BuilderConfig for NBSamtale"""
def __init__(self, **kwargs):
# Version history:
# 1.0.0: Initial version.
super(NBSamtaleConfig, self).__init__(version=datasets.Version("1.0.0"), **kwargs)
class NBSamtale(datasets.GeneratorBasedBuilder):
"""Norwegian conversational speech audio dataset with a total of 24 hours transcribed speech from 69 speakers. """
BUILDER_CONFIG_CLASS = NBSamtaleConfig
BUILDER_CONFIGS = [
NBSamtaleConfig(name="annotations", description="Transcriptions contain original annotations, including hesitations, laughter, interruptions etc. See https://www.nb.no/sbfil/taledata/NB_Samtale_About_the_corpus.pdf section 'Transcriptions' for more information."),
NBSamtaleConfig(name="orthographic", description="Transcriptions have been normalized and word forms that comply with the orthographic standard are chosen, even for dialect specific words, e.g. 'korsen'/'kossen' is replaced with 'hvordan' in bokmål, or 'korleis' in nynorsk."),
NBSamtaleConfig(name="verbatim", description="Transcriptions are closer to the spoken words, dialectal word forms have been chosen instead of the standard orthographic word form. E.g. 'korsen' or 'kossen' would be kept, instead of the orthographic bokmål 'hvordan', or nynorsk 'korleis'."),
#NBSamtaleConfig(name="bm", language="bokmål", description="Normalized bokmål transcriptions. Word forms that comply with the orthographic standard are chosen, e.g. 'korsen' is replaced with 'hvordan'."),
#NBSamtaleConfig(name="nn", language="nynorsk", description="Normalized nynorsk transcriptions. Word forms that comply with the orthographic standard are chosen, e.g. 'kossen' is replaced with 'korleis'."),
]
DEFAULT_CONFIG_NAME = "annotations"
def _info(self):
"""This method specifies the datasets.DatasetInfo object
which contains informations and typings for the dataset.
"""
return datasets.DatasetInfo(
description=_DESCRIPTION,
features=datasets.Features(
{
'source_file_id': datasets.Value(dtype='string'),
'segment_id': datasets.Value(dtype='string'),
'segment_order': datasets.Value(dtype='int64'),
'duration': datasets.Value(dtype='float64'),
'overlap_previous': datasets.Value(dtype='bool'),
'overlap_next': datasets.Value(dtype='bool'),
'speaker_id': datasets.Value(dtype='string'),
'gender': ClassLabel(names=['f', 'm']),
'dialect': ClassLabel(names=['e', 'n', 'sw', 't', 'w']),
'orthography': ClassLabel(names=['bm', 'nn']),
'source_type': ClassLabel(names=['live-event', 'podcast']),
'file_name': datasets.Value(dtype='string'),
'transcription': datasets.Value(dtype='string'),
'annotations': datasets.Value(dtype='string'),
'orthographic': datasets.Value(dtype='string'),
'verbatim': datasets.Value(dtype='string'),
'audio': datasets.Audio(sampling_rate=16000, mono=True, decode=True),
}
),
supervised_keys=None,
homepage=_HOMEPAGE,
license=_LICENSE,
citation=_CITATION,
)
def _split_generators(self, dl_manager: datasets.DownloadManager) -> List[datasets.SplitGenerator]:
"""Download data and extract to datasets.Splits"""
dl_manager.download_config.ignore_url_params = True
audio_path = {}
split_type = {
"train": datasets.Split.TRAIN,
"test": datasets.Split.TEST,
"validation": datasets.Split.VALIDATION,
}
for split in split_type:
audio_path[split] = dl_manager.download([f"data/{split}_{lang}_1.tar.gz" for lang in ["bm", "nn"]])
return [
datasets.SplitGenerator(
name=split_type[split],
gen_kwargs={
"local_extracted_archive": dl_manager.extract(audio_path[split]) if not dl_manager.is_streaming else None,
"audio_files":[dl_manager.iter_archive(archive) for archive in audio_path[split]], #dl_manager.iter_archive(audio_path[split]),
"metadata": dl_manager.download_and_extract(f"data/{split}_metadata.jsonl"),
}
) for split in split_type
]
# method parameters are unpacked from `gen_kwargs` as given in `_split_generators`
def _generate_examples(self, local_extracted_archive, audio_files, metadata):
"""Loads the data files and extract the features."""
meta = {}
with open(metadata, encoding="utf-8") as mf:
datalines = mf.read().splitlines()
for row in datalines:
data = json.loads(row)
audio_path = data["file_name"]
data["transcription"] = data[self.config.name]
meta[audio_path] = data
id_ = 0
for archive in audio_files:
for path, audio_file in archive:
if not path in meta:
print(f"{path} not in metadata")
else:
result = dict(meta[path])
# set the audio feature and the path to the extracted file
path = os.path.join(local_extracted_archive, path) if local_extracted_archive else path
result["audio"] = {"path": path, "bytes": audio_file.read()}
yield id_, result
id_ += 1
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