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@@ -53,6 +53,3 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
-# Video files - compressed
-*.mp4 filter=lfs diff=lfs merge=lfs -text
-*.webm filter=lfs diff=lfs merge=lfs -text

aishell1.py

@@ -0,0 +1,247 @@
+# 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.
+"""
+Aishell dataset.
+"""
+
+import os
+import datasets
+from huggingface_hub import list_repo_files
+import gzip
+import json
+
+repo_id = "yuekai/aishell1"
+
+_DESCRIPTION = """\
+aishell
+"""
+_HOMEPAGE = "https://github.com/SpeechColab/Aishell"
+
+_SUBSETS = ("train", "dev", "test")
+
+_BASE_DATA_URL = f"https://huggingface.co/datasets/{repo_id}/resolve/main/"
+
+_AUDIO_ARCHIVE_URL = _BASE_DATA_URL + "data/aishell_cuts_{subset}.{archive_id:08}.tar.gz"
+
+_META_URL = _BASE_DATA_URL + "data/aishell_cuts_{subset}.{archive_id:08}.jsonl.gz"
+
+FILES = list_repo_files(repo_id, repo_type="dataset")
+
+logger = datasets.utils.logging.get_logger(__name__)
+
+
+class CustomAudioConfig(datasets.BuilderConfig):
+    """BuilderConfig for the dataset."""
+
+    def __init__(self, name, *args, **kwargs):
+        """BuilderConfig for the dataset.
+        """
+        super().__init__(name=name, *args, **kwargs)
+        assert name in _SUBSETS, f"Unknown subset {name}"
+        self.subsets_to_download = (name,)
+
+
+class Aishell1(datasets.GeneratorBasedBuilder):
+    """
+    Aishell is an evolving, multi-domain English speech recognition corpus with 10,000 hours of high quality
+    labeled audio suitable for supervised training, and 40,000 hours of total audio suitable for semi-supervised
+    and unsupervised training (this implementation contains only labelled data for now).
+    Around 40,000 hours of transcribed audio is first collected from audiobooks, podcasts
+    and YouTube, covering both read and spontaneous speaking styles, and a variety of topics, such as arts, science,
+    sports, etc. A new forced alignment and segmentation pipeline is proposed to create sentence segments suitable
+    for speech recognition training, and to filter out segments with low-quality transcription. For system training,
+    Aishell provides five subsets of different sizes, 10h, 250h, 1000h, 2500h, and 10000h.
+    For our 10,000-hour XL training subset, we cap the word error rate at 4% during the filtering/validation stage,
+    and for all our other smaller training subsets, we cap it at 0%. The DEV and TEST evaluation sets, on the other hand,
+    are re-processed by professional human transcribers to ensure high transcription quality.
+    """
+
+    VERSION = datasets.Version("1.0.0")
+
+    BUILDER_CONFIGS = [CustomAudioConfig(name=subset) for subset in _SUBSETS]
+
+    DEFAULT_WRITER_BATCH_SIZE = 128
+
+    def _info(self):
+        features = datasets.Features(
+            {
+                "segment_id": datasets.Value("string"),
+                "speaker": datasets.Value("string"),
+                "text": datasets.Value("string"),
+                "audio": datasets.Audio(sampling_rate=16_000),
+                "original_full_path": datasets.Value("string"),  # relative path to full audio in original data dirs
+            }
+        )
+        return datasets.DatasetInfo(
+            description=_DESCRIPTION,
+            features=features,
+            homepage=_HOMEPAGE,
+        )
+
+    @property
+    def _splits_to_subsets(self):
+        return {
+            "train": ['train'],
+            "dev": ["dev"],
+            "test": ["test"]
+        }
+
+    def _split_generators(self, dl_manager):
+        splits_to_subsets = self._splits_to_subsets
+        if self.config.name in {"dev", "test"}:
+            splits = (self.config.name,)
+        else:
+            splits = ("train", "dev", "test")
+
+        split_to_n_archives = {
+            split: int(len([file for file in FILES if f"cuts_{splits_to_subsets[split][0]}" in file]) / 2)
+            for split in splits
+        }
+
+        # 2. prepare sharded archives with audio files
+        audio_archives_urls = {
+            split: 
+                [
+                    _AUDIO_ARCHIVE_URL.format(subset=splits_to_subsets[split][0], 
+                                              archive_id=i)
+                    for i in range(split_to_n_archives[split])
+                ]
+            for split in splits
+        }
+
+        audio_archives_paths = dl_manager.download(audio_archives_urls)
+
+        local_audio_archives_paths = dl_manager.extract(audio_archives_paths) if not dl_manager.is_streaming \
+            else None
+
+        # 3. prepare sharded metadata csv files
+        meta_urls = {
+            split: [
+                    _META_URL.format(subset=splits_to_subsets[split][0], archive_id=i)
+                    for i in range(split_to_n_archives[split])
+                ]
+            for split in splits
+        }
+
+        # meta_paths = dl_manager.download_and_extract(meta_urls)
+        meta_paths = dl_manager.download(meta_urls)
+
+        if self.config.name not in {"dev", "test"}:
+            result = [
+                datasets.SplitGenerator(
+                    name=datasets.Split.TRAIN,
+                    gen_kwargs={
+                        "audio_archives_iterators": [
+                            dl_manager.iter_archive(archive_path) for archive_path in audio_archives_paths["train"]
+                        ],
+                        "local_audio_archives_paths": local_audio_archives_paths[
+                            "train"] if local_audio_archives_paths else None,
+                        "meta_paths": meta_paths["train"]
+                    },
+                )
+            ]
+            if 'dev' in audio_archives_paths:
+                result.append(datasets.SplitGenerator(
+                    name=datasets.Split.VALIDATION,
+                    gen_kwargs={
+                        "audio_archives_iterators": [
+                            dl_manager.iter_archive(archive_path) for archive_path in audio_archives_paths["dev"]
+                        ],
+                        "local_audio_archives_paths": local_audio_archives_paths[
+                            "dev"] if local_audio_archives_paths else None,
+                        "meta_paths": meta_paths["dev"]
+                    },
+                ))
+            if 'test' in audio_archives_paths:
+                result.append(datasets.SplitGenerator(
+                    name=datasets.Split.TEST,
+                    gen_kwargs={
+                        "audio_archives_iterators": [
+                            dl_manager.iter_archive(archive_path) for archive_path in audio_archives_paths["test"]
+                        ],
+                        "local_audio_archives_paths": local_audio_archives_paths[
+                            "test"] if local_audio_archives_paths else None,
+                        "meta_paths": meta_paths["test"]
+                    },
+                ))
+            return result
+
+        if self.config.name == "dev":
+            return [
+                datasets.SplitGenerator(
+                    name=datasets.Split.VALIDATION,
+                    gen_kwargs={
+                        "audio_archives_iterators": [
+                            dl_manager.iter_archive(archive_path) for archive_path in audio_archives_paths["dev"]
+                        ],
+                        "local_audio_archives_paths": local_audio_archives_paths[
+                            "dev"] if local_audio_archives_paths else None,
+                        "meta_paths": meta_paths["dev"]
+                    },
+                ),
+            ]
+
+        if self.config.name == "test":
+
+            return [
+                datasets.SplitGenerator(
+                    name=datasets.Split.TEST,
+                    gen_kwargs={
+                        "audio_archives_iterators": [
+                            dl_manager.iter_archive(archive_path) for archive_path in audio_archives_paths["test"]
+                        ],
+                        "local_audio_archives_paths": local_audio_archives_paths[
+                            "test"] if local_audio_archives_paths else None,
+                        "meta_paths": meta_paths["test"]
+                    },
+                ),
+            ]
+
+    def _generate_examples(self, audio_archives_iterators, local_audio_archives_paths, meta_paths):
+
+        def load_meta(file_path):
+            data = {}
+
+            with gzip.open(file_path, 'rt', encoding='utf-8') as f:
+                for line in f:
+                    item = json.loads(line)
+                    data[item["id"]] = item
+            return data
+
+        assert len(audio_archives_iterators) == len(meta_paths)
+        if local_audio_archives_paths:
+            assert len(audio_archives_iterators) == len(local_audio_archives_paths)
+
+        for i, (meta_path, audio_archive_iterator) in enumerate(zip(meta_paths, audio_archives_iterators)):
+            meta_dict = load_meta(meta_path)
+
+            for audio_path_in_archive, audio_file in audio_archive_iterator:
+                # `audio_path_in_archive` is like "data/aishell_cuts_test.00000000/BAC/BAC009S0764W0393-359.wav"
+                audio_filename = os.path.split(audio_path_in_archive)[-1]
+
+                audio_id = audio_filename.split(".wav")[0]
+                audio_meta = meta_dict[audio_id]
+
+                audio_meta["segment_id"] = audio_id
+                audio_meta["original_full_path"] = audio_meta["recording"]["sources"][0]["source"]
+                audio_meta["text"] = audio_meta['supervisions'][0]['text']
+                audio_meta["speaker"] = audio_meta['supervisions'][0]['speaker']
+
+                path = os.path.join(local_audio_archives_paths[i], audio_path_in_archive) if local_audio_archives_paths \
+                    else audio_path_in_archive
+
+                yield audio_id, {
+                    "audio": {"path": path , "bytes": audio_file.read()},
+                    **{feature: value for feature, value in audio_meta.items() if feature in self.info.features}
+                }

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