icefall/egs/tedlium3/ASR/local/display_manifest_statistics.py
Fangjun Kuang f1abce72f8
Use jsonl for CutSet in the LibriSpeech recipe. (#397)
* Use jsonl for cutsets in the librispeech recipe.

* Use lazy cutset for all recipes.

* More fixes to use lazy CutSet.

* Remove force=True from logging to support Python < 3.8

* Minor fixes.

* Fix style issues.
2022-06-06 10:19:16 +08:00

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Python
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#!/usr/bin/env python3
# Copyright 2021 Xiaomi Corp. (authors: Fangjun Kuang
# 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 file displays duration statistics of utterances in a manifest.
You can use the displayed value to choose minimum/maximum duration
to remove short and long utterances during the training.
See the function `remove_short_and_long_utt()`
in ../../../librispeech/ASR/transducer/train.py
for usage.
"""
from lhotse import load_manifest_lazy
def main():
path = "./data/fbank/tedlium_cuts_train.jsonl.gz"
path = "./data/fbank/tedlium_cuts_dev.jsonl.gz"
path = "./data/fbank/tedlium_cuts_test.jsonl.gz"
cuts = load_manifest_lazy(path)
cuts.describe()
if __name__ == "__main__":
main()
"""
## train
Cuts count: 804789
Total duration (hours): 1370.6
Speech duration (hours): 1370.6 (100.0%)
***
Duration statistics (seconds):
mean 6.1
std 3.1
min 0.5
25% 3.7
50% 6.0
75% 8.3
99.5% 14.9
99.9% 16.6
max 33.3
## dev
Cuts count: 507
Total duration (hours): 1.6
Speech duration (hours): 1.6 (100.0%)
***
Duration statistics (seconds):
mean 11.3
std 5.7
min 0.5
25% 7.5
50% 10.6
75% 14.4
99.5% 29.8
99.9% 37.7
max 39.9
## test
Cuts count: 1155
Total duration (hours): 2.6
Speech duration (hours): 2.6 (100.0%)
***
Duration statistics (seconds):
mean 8.2
std 4.3
min 0.3
25% 4.6
50% 8.2
75% 10.9
99.5% 22.1
99.9% 26.7
max 32.5
"""