mirror of
https://github.com/k2-fsa/icefall.git
synced 2025-08-09 18:12:19 +00:00
59c943878f
* add the `voxpopuli` recipe - this is the data preparation - there is no ASR training and no results * update the PR#1374 (feedback from @csukuangfj) - fixing .py headers and docstrings - removing BUT specific parts of `prepare.sh` - adding assert `num_jobs >= num_workers` to `compute_fbank.py` - narrowing list of languages (let's limit to ASR sets with transcripts for now) - added links to `README.md` - extending `text_from_manifest.py`
124 lines
3.8 KiB
Python
Executable File
124 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright 2022 Xiaomi Corp. (authors: Fangjun Kuang)
|
|
# 2023 Brno University of Technology (authors: Karel Veselý)
|
|
#
|
|
# 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 checks the following assumptions of the generated manifest:
|
|
|
|
- Single supervision per cut
|
|
- Supervision time bounds are within Cut time bounds
|
|
- Duration of Cut and Superivion are equal
|
|
|
|
We will add more checks later if needed.
|
|
|
|
Usage example:
|
|
|
|
python3 ./local/validate_manifest.py \
|
|
./data/fbank/librispeech_cuts_train-clean-100.jsonl.gz
|
|
|
|
(Based on: `librispeech/ASR/local/validate_manifest.py`)
|
|
"""
|
|
|
|
import argparse
|
|
import logging
|
|
from pathlib import Path
|
|
|
|
from lhotse import CutSet, load_manifest_lazy
|
|
from lhotse.cut import Cut
|
|
from lhotse.dataset.speech_recognition import validate_for_asr
|
|
|
|
|
|
def get_args():
|
|
parser = argparse.ArgumentParser()
|
|
|
|
parser.add_argument(
|
|
"cutset_manifest",
|
|
type=Path,
|
|
help="Path to the manifest file",
|
|
)
|
|
|
|
return parser.parse_args()
|
|
|
|
|
|
def validate_one_supervision_per_cut(c: Cut):
|
|
if len(c.supervisions) != 1:
|
|
raise ValueError(f"{c.id} has {len(c.supervisions)} supervisions")
|
|
|
|
|
|
def validate_supervision_and_cut_time_bounds(c: Cut):
|
|
tol = 2e-3 # same tolerance as in 'validate_for_asr()'
|
|
s = c.supervisions[0]
|
|
|
|
# Supervision start time is relative to Cut ...
|
|
# https://lhotse.readthedocs.io/en/v0.10_e/cuts.html
|
|
if s.start < -tol:
|
|
raise ValueError(
|
|
f"{c.id}: Supervision start time {s.start} must not be negative."
|
|
)
|
|
if s.start > tol:
|
|
raise ValueError(
|
|
f"{c.id}: Supervision start time {s.start} "
|
|
"is not at the beginning of the Cut. "
|
|
"Please apply `lhotse cut trim-to-supervisions`."
|
|
)
|
|
if c.start + s.end > c.end + tol:
|
|
raise ValueError(
|
|
f"{c.id}: Supervision end time {c.start+s.end} is larger "
|
|
f"than cut end time {c.end}"
|
|
)
|
|
|
|
if s.duration != c.duration:
|
|
raise ValueError(
|
|
f"{c.id}: Cut duration {c.duration} and supervision duration "
|
|
f"{s.duration} must be the same.\n"
|
|
f"The difference causes problems in the training code : "
|
|
f"+/- 1 frame in `x`, `x_lens` in `Zipformer::forward()`.\n"
|
|
f"Did you forget to apply `trim_to_supervisions()` ?"
|
|
)
|
|
|
|
|
|
def main():
|
|
args = get_args()
|
|
|
|
manifest = args.cutset_manifest
|
|
logging.info(f"Validating {manifest}")
|
|
|
|
assert manifest.is_file(), f"{manifest} does not exist"
|
|
cut_set = load_manifest_lazy(manifest)
|
|
assert isinstance(cut_set, CutSet)
|
|
|
|
try:
|
|
for c in cut_set:
|
|
validate_one_supervision_per_cut(c)
|
|
validate_supervision_and_cut_time_bounds(c)
|
|
|
|
# Validation from K2 training
|
|
# - checks supervision start is 0
|
|
# - checks supervision.duration is not longer than cut.duration
|
|
# - there is tolerance 2ms
|
|
validate_for_asr(cut_set)
|
|
except BaseException as e:
|
|
logging.error(str(e))
|
|
raise
|
|
|
|
|
|
if __name__ == "__main__":
|
|
formatter = "%(asctime)s %(levelname)s [%(filename)s:%(lineno)d] %(message)s"
|
|
|
|
logging.basicConfig(format=formatter, level=logging.INFO)
|
|
|
|
main()
|