k2-fsa
f186e1d427
Fix weights_only=False
2025-06-30 23:30:11 +08:00
Fangjun Kuang
8136ad775b
Use high_freq -400 in computing fbank features. ( #1447 )
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See also https://github.com/k2-fsa/sherpa-onnx/issues/514
2024-01-04 13:59:32 +08:00
Zengwei Yao
b25c234c51
Add Zipformer-MMI ( #746 )
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* Minor fix to conformer-mmi
* Minor fixes
* Fix decode.py
* add training files
* train with ctc warmup
* add pruned_transducer_stateless7_mmi
* add zipformer_mmi/mmi_decode.py, using HP as decoding graph
* add mmi_decode.py
* remove pruned_transducer_stateless7_mmi
* rename zipformer_mmi/train_with_ctc.py as zipformer_mmi/train.py
* remove unused method
* rename mmi_decode.py
* add export.py pretrained.py jit_pretrained.py ...
* add RESULTS.md
* add CI test
* add docs
* add README.md
Co-authored-by: pkufool <wkang.pku@gmail.com>
2022-12-11 21:30:39 +08:00
Zengwei Yao
8eb4b9d96d
Combining rnnt loss and k2-ctc loss for Dan's Zipformer ( #683 )
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* init files
* add ctc as auxiliary loss and ctc_decode.py
* tuning the scalar of HLG score for 1best, nbest and nbest-oracle
* rename to pruned_transducer_stateless7_ctc
* fix doc
* fix bug, recover the hlg scores
* modify ctc_decode.py, move out the hlg scale
* fix hlg_scale
* add export.py and pretrained.py, and so on
* upload files, update README.md and RESULTS.md
* add CI test
2022-12-03 19:01:10 +08:00
Zengwei Yao
ece728d895
Apply delay penalty on k2 ctc loss ( #669 )
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* add init files
* fix bug, apply delay penalty
* fix decoding code and getting timestamps
* add option applying delay penalty on ctc log-prob
* fix bug of streaming decoding
* minor change for bpe-based case
* add test_model.py
* add README.md
* add CI
2022-11-28 22:34:02 +08:00
