icefall/egs/timit/ASR/local/prepare_lexicon.py
Mingshuang Luo 2e0f255ada
Add timit recipe (including the code scripts and the docs) for icefall (#114)
* add timit recipe for icefall

* add shared file

* update the docs for timit recipe

* Delete shared

* update the timit recipe and check style

* Update model.py

* Do some changes

* Update model.py

* Update model.py

* Add README.md and RESULTS.md

* Update RESULTS.md

* Update README.md

* update the docs for timit recipe
2021-11-17 11:23:45 +08:00

103 lines
2.7 KiB
Python

#!/usr/bin/env python3
# Copyright 2021 Xiaomi Corp. (authors: Mingshuang Luo)
#
# See ../../../../LICENSE for clarification regarding multiple authors
#
# 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.
"""
This script takes as input supervisions json dir "data/manifests"
consisting of supervisions_TRAIN.json and does the following:
1. Generate lexicon.txt.
"""
import argparse
import json
import logging
from pathlib import Path
def get_args():
parser = argparse.ArgumentParser()
parser.add_argument(
"--manifests-dir",
type=str,
help="""Input directory.
""",
)
parser.add_argument(
"--lang-dir",
type=str,
help="""Output directory.
""",
)
return parser.parse_args()
def prepare_lexicon(manifests_dir: str, lang_dir: str):
"""
Args:
manifests_dir:
The manifests directory, e.g., data/manifests.
lang_dir:
The language directory, e.g., data/lang_phone.
Return:
The lexicon.txt file and the train.text in lang_dir.
"""
phones = set()
supervisions_train = Path(manifests_dir) / "supervisions_TRAIN.json"
lexicon = Path(lang_dir) / "lexicon.txt"
logging.info(f"Loading {supervisions_train}!")
with open(supervisions_train, "r") as load_f:
load_dicts = json.load(load_f)
for load_dict in load_dicts:
text = load_dict["text"]
# list the phone units and filter the empty item
phones_list = list(filter(None, text.split()))
for phone in phones_list:
if phone not in phones:
phones.add(phone)
with open(lexicon, "w") as f:
for phone in sorted(phones):
f.write(phone + " " + phone)
f.write("\n")
f.write("<UNK> <UNK>")
f.write("\n")
def main():
args = get_args()
manifests_dir = Path(args.manifests_dir)
lang_dir = Path(args.lang_dir)
logging.info("Generating lexicon.txt")
prepare_lexicon(manifests_dir, lang_dir)
if __name__ == "__main__":
formatter = (
"%(asctime)s %(levelname)s [%(filename)s:%(lineno)d] %(message)s"
)
logging.basicConfig(format=formatter, level=logging.INFO)
main()