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111 lines
3.5 KiB
111 lines
3.5 KiB
3 years ago
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# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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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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"""Prepare TIMIT dataset (Standard split from Kaldi)
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Create manifest files from splited datased.
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Manifest file is a json-format file with each line containing the
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meta data (i.e. audio filepath, transcript and audio duration)
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of each audio file in the data set.
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"""
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import argparse
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import codecs
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import json
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import os
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import soundfile
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument(
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"--src_dir",
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default="",
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type=str,
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help="Directory to kaldi splited data. (default: %(default)s)")
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parser.add_argument(
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"--manifest_prefix",
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default="manifest",
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type=str,
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help="Filepath prefix for output manifests. (default: %(default)s)")
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args = parser.parse_args()
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def create_manifest(data_dir, manifest_path_prefix):
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print("Creating manifest %s ..." % manifest_path_prefix)
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json_lines = []
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data_types = ['train', 'dev', 'test']
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for dtype in data_types:
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del json_lines[:]
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total_sec = 0.0
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total_text = 0.0
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total_num = 0
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phn_path = os.path.join(data_dir, dtype+'.text')
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phn_dict = {}
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for line in codecs.open(phn_path, 'r', 'utf-8'):
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line = line.strip()
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if line == '':
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continue
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audio_id, text = line.split(' ', 1)
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phn_dict[audio_id] = text
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audio_dir = os.path.join(data_dir, dtype+'_sph.scp')
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for line in codecs.open(audio_dir, 'r', 'utf-8'):
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audio_id, audio_path = line.strip().split()
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# if no transcription for audio then raise error
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assert audio_id in phn_dict
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audio_data, samplerate = soundfile.read(audio_path)
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duration = float(len(audio_data) / samplerate)
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text = phn_dict[audio_id]
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json_lines.append(
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json.dumps(
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{
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'utt': audio_id,
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'feat': audio_path,
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'feat_shape': (duration, ), # second
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'text': text
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},
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ensure_ascii=False))
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total_sec += duration
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total_text += len(text)
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total_num += 1
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manifest_path = manifest_path_prefix + '.' + dtype + '.raw'
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with codecs.open(manifest_path, 'w', 'utf-8') as fout:
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for line in json_lines:
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fout.write(line + '\n')
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def prepare_dataset(src_dir, manifest_path=None):
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"""create manifest file."""
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if os.path.isdir(manifest_path):
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manifest_path = os.path.join(manifest_path, 'manifest')
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if manifest_path:
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create_manifest(src_dir, manifest_path)
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def main():
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if args.src_dir.startswith('~'):
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args.src_dir = os.path.expanduser(args.src_dir)
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prepare_dataset(
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src_dir=args.src_dir,
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manifest_path=args.manifest_prefix)
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print("manifest prepare done!")
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if __name__ == '__main__':
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main()
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