Add a new EGS2 recipe 'reazonspeech'

[fujimotos]

ReazonSpeech is >19000h Japanese corpus collected from TV programs.
This adds ASR recipe that trains Conformer model on it.

• The dataset is automatically downloaded from Hugging Face using
  datasets.load_download()

• The training recipe is almost the same as CSJ, except for minor
  parameter tweakings (to optimize it for our machine spec)

The pre-trained model is available on Hugging Face:

https://huggingface.co/reazon-research/reazonspeech-espnet-v1

[ftshijt]

Hi @fujimotos Please fix the CI, then I can merge it~ Thanks

[mergify]

This pull request is now in conflict :(

[sw005320]

tools/installers/install_datasets.sh seems to be empty.
Is it OK?

[fujimotos]

Hi @fujimotos Please fix the CI, then I can merge it~ Thanks

@ftshijt The CI error should be fixed by a92301e:

• Added a pair of quotation marks to pass shellcheck.
• Applied isort and black to follow the coding standard.

Also I fixed the merge conflict by rebasing to the master HEAD,
so that you can merge this PR cleanly.

Feel free to ask me if anything is not clear!

[fujimotos]

tools/installers/install_datasets.sh seems to be empty.
Is it OK?

@sw005320 It must be OK.

Basically @wanchichen added install_datasets.sh in 8757bf6, but
did not turned on the executable bit on the script file. For this reason,
the following command did not work previously:

Error: it seems that datasets is not installed.
Error: please install datasets as follows.
Error: cd ${MAIN_ROOT}/tools/installers && ./install_datasets.sh

So I did chmod +x install_datasets.sh as part of this PR (so that
users actually can execute ./install_datasets.sh). This is why Git shows
an "empty" diff.

[sw005320]

Got it. Thanks!

[codecov]

Codecov Report

Merging #4885 (a92301e) into master (2270dee) will increase coverage by 9.52%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4885      +/-   ##
==========================================
+ Coverage   67.06%   76.58%   +9.52%     
==========================================
  Files         603      603              
  Lines       53737    53737              
==========================================
+ Hits        36039    41155    +5116     
+ Misses      17698    12582    -5116     

Flag	Coverage Δ
test_integration_espnet1	66.33% <ø> (?)
test_integration_espnet2	47.60% <ø> (?)
test_python	66.45% <ø> (+0.09%)	⬆️
test_utils	23.35% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
espnet2/train/reporter.py	88.44% <0.00%> (+0.26%)	⬆️
espnet2/svs/espnet_model.py	6.25% <0.00%> (+0.52%)	⬆️
espnet/nets/pytorch_backend/e2e_tts_transformer.py	88.79% <0.00%> (+0.56%)	⬆️
espnet/nets/pytorch_backend/e2e_asr_transformer.py	95.72% <0.00%> (+0.71%)	⬆️
espnet/asr/pytorch_backend/asr_init.py	90.64% <0.00%> (+0.71%)	⬆️
espnet/nets/pytorch_backend/e2e_asr.py	80.29% <0.00%> (+0.74%)	⬆️
espnet2/train/iterable_dataset.py	85.47% <0.00%> (+0.85%)	⬆️
espnet/nets/pytorch_backend/rnn/decoders.py	93.92% <0.00%> (+1.04%)	⬆️
espnet/nets/pytorch_backend/lm/default.py	93.86% <0.00%> (+1.22%)	⬆️
espnet2/samplers/num_elements_batch_sampler.py	87.50% <0.00%> (+1.25%)	⬆️
... and 108 more

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[wanchichen]

tools/installers/install_datasets.sh seems to be empty.
Is it OK?

@sw005320 It must be OK.

Basically @wanchichen added install_datasets.sh in 8757bf6, but did not turned on the executable bit on the script file. For this reason, the following command did not work previously:

Error: it seems that datasets is not installed.
Error: please install datasets as follows.
Error: cd ${MAIN_ROOT}/tools/installers && ./install_datasets.sh

So I did chmod +x install_datasets.sh as part of this PR (so that users actually can execute ./install_datasets.sh). This is why Git shows an "empty" diff.

Thanks for the fix! Not sure how that happened.