mirror of
https://github.com/k2-fsa/icefall.git
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139 lines
4.1 KiB
Python
Executable File
139 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2024 Xiaomi Corp. (Yifan Yang)
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#
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# See ../../../../LICENSE for clarification regarding multiple authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import re
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from pathlib import Path
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import unicodedata
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from lhotse import CutSet, SupervisionSegment
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from lhotse.recipes.utils import read_manifests_if_cached
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from icefall.utils import str2bool
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def get_args():
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"--lang",
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type=str,
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)
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return parser.parse_args()
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def normalize_text(
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text: str,
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lang: str,
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) -> str:
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text = unicodedata.normalize("NFKC", text)
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# Convert to upper case
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text = text.upper()
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# Remove brackets with content
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text = re.sub(r"\([^\)]*\)", " ", text)
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# Language-related normalization
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if lang == "Thai":
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# Digit mapping
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text = re.sub(r"\u0030", r"\u0E50", text)
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text = re.sub(r"\u0031", r"\u0E51", text)
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text = re.sub(r"\u0032", r"\u0E52", text)
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text = re.sub(r"\u0033", r"\u0E53", text)
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text = re.sub(r"\u0034", r"\u0E54", text)
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text = re.sub(r"\u0035", r"\u0E55", text)
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text = re.sub(r"\u0036", r"\u0E56", text)
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text = re.sub(r"\u0037", r"\u0E57", text)
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text = re.sub(r"\u0038", r"\u0E58", text)
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text = re.sub(r"\u0039", r"\u0E59", text)
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# Currency symbols mapping
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text = re.sub(r"\u0024", "ดอลลาร์", text) # $
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text = re.sub(r"\u00A3", "ปอนด์", text) # £
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text = re.sub(r"\u00A5", "หยวน", text) # ¥
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text = re.sub(r"\u20AC", "ยูโร", text) # €
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text = re.sub(r"\u0E3F", "บาท", text) # ฿
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# Temperature/Angle symbols mapping
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text = re.sub(r"\u00B0\u0043", "องศาเซลเซียส", text) # °C
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text = re.sub(r"\u00B0\u0046", "องศาฟาเรนไฮต์", text) # °F
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text = re.sub(r"\u00B0", "องศา", text) # °
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# Remove blank symbols
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text = re.sub(r"\s", "", text)
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else:
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text = re.sub(r"\s+", " ", text).strip()
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return text
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def preprocess_gigaspeech2(args):
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src_dir = Path("data/manifests")
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output_dir = Path("data/fbank")
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output_dir.mkdir(exist_ok=True)
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dataset_parts = ("test",)
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logging.info("Loading manifest (may take 4 minutes)")
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manifests = read_manifests_if_cached(
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dataset_parts=dataset_parts,
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output_dir=src_dir,
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prefix="gigaspeech2",
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suffix="jsonl.gz",
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)
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assert manifests is not None
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assert len(manifests) == len(dataset_parts), (
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len(manifests),
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len(dataset_parts),
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list(manifests.keys()),
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dataset_parts,
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)
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for partition, m in manifests.items():
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logging.info(f"Processing {partition}")
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raw_cuts_path = output_dir / f"gigaspeech2_cuts_{partition}_raw.jsonl.gz"
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if raw_cuts_path.is_file():
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logging.info(f"{partition} already exists - skipping")
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continue
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for sup in m["supervisions"]:
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sup.text = normalize_text(sup.text)
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logging.info(f"Processing {partition}")
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cut_set = CutSet.from_manifests(
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recordings=m["recordings"],
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supervisions=m["supervisions"],
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)
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logging.info(f"Saving to {raw_cuts_path}")
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cut_set.to_file(raw_cuts_path)
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def main():
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formatter = "%(asctime)s %(levelname)s [%(filename)s:%(lineno)d] %(message)s"
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logging.basicConfig(format=formatter, level=logging.INFO)
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args = get_args()
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preprocess_gigaspeech2(args)
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if __name__ == "__main__":
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main()
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