- Feature info: using fbank feature, dither, cmvn, online speed perturb
- Training info: lr 0.002, batch size 18, 4 gpu, acc_grad 4, 240 epochs, dither 0.1
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 919f07c4887ac500168ba84b39b535fd8e58918a
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210204_conformer_exp.tar.gz
| decoding mode | CER |
|---|---|
| attention decoder | 5.18 |
| ctc greedy search | 4.94 |
| ctc prefix beam search | 4.94 |
| attention rescoring | 4.61 |
| LM + attention rescoring | 4.36 |
- Feature info: using fbank feature, dither=1.0, cmvn, oneline speed perturb
- Training info: lr 0.001, batch size 16, 8 gpu, acc_grad 1, 360 epochs
- Decoding info: ctc_weight 0.3, reverse_weight 0.5 average_num 30
- Git hash: 5a1342312668e7a5abb83aed1e53256819cebf95
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210601_u2pp_conformer_exp.tar.gz
| decoding mode/chunk size | full | 16 |
|---|---|---|
| ctc greedy search | 5.19 | 5.81 |
| ctc prefix beam search | 5.17 | 5.81 |
| attention rescoring | 4.63 | 5.05 |
| LM + attention rescoring | 4.40 | 4.75 |
- Feature info: using fbank feature, dither=0, cmvn, oneline speed perturb
- Training info: lr 0.001, batch size 16, 8 gpu, acc_grad 1, 180 epochs, dither 0.0
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 919f07c4887ac500168ba84b39b535fd8e58918a
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210203_unified_conformer_exp.tar.gz
| decoding mode/chunk size | full | 16 | 8 | 4 |
|---|---|---|---|---|
| attention decoder | 5.40 | 5.60 | 5.74 | 5.86 |
| ctc greedy search | 5.56 | 6.29 | 6.68 | 7.10 |
| ctc prefix beam search | 5.57 | 6.30 | 6.67 | 7.10 |
| attention rescoring | 5.05 | 5.45 | 5.69 | 5.91 |
| LM + attention rescoring | 4.73 | 5.08 | 5.22 | 5.38 |
- Feature info: using fbank feature, dither, cmvn, online speed perturb.
- Training info: lr 0.001, batch size 26, 8 gpu, acc_grad 1, 360 epochs, dither 0.1
- Decoding info: ctc_weight 0.2, reverse_weight 0.5, average_num 30
- Git hash: 65270043fc8c2476d1ab95e7c39f730017a670e0
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210607_u2pp_transformer_exp.tar.gz
| decoding mode/chunk size | full | 16 |
|---|---|---|
| ctc greedy search | 6.05 | 6.92 |
| ctc prefix beam search | 6.05 | 6.90 |
| attention rescoring | 5.11 | 5.63 |
| LM + attention rescoring | 4.82 | 5.24 |
- Feature info: using fbank feature, dither, with cmvn, online speed perturb.
- Training info: lr 0.002, batch size 26, 4 gpu, acc_grad 4, 240 epochs, dither 0.1
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 919f07c4887ac500168ba84b39b535fd8e58918a
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210204_transformer_exp.tar.gz
| decoding mode | CER |
|---|---|
| attention decoder | 5.69 |
| ctc greedy search | 5.92 |
| ctc prefix beam search | 5.91 |
| attention rescoring | 5.30 |
| LM + attention rescoring | 5.04 |
- Feature info: using fbank feature, dither=0, with cmvn, online speed perturb.
- Training info: lr 0.002, batch size 16, 4 gpu, acc_grad 1, 240 epochs, dither 0.1
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 919f07c4887ac500168ba84b39b535fd8e58918a
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell/20210204_unified_transformer_exp.tar.gz
| decoding mode/chunk size | full | 16 | 8 | 4 |
|---|---|---|---|---|
| attention decoder | 6.04 | 6.35 | 6.45 | 6.70 |
| ctc greedy search | 6.28 | 6.99 | 7.39 | 7.89 |
| ctc prefix beam search | 6.28 | 6.98 | 7.40 | 7.89 |
| attention rescoring | 5.52 | 6.05 | 6.28 | 6.62 |
| LM + attention rescoring | 5.11 | 5.59 | 5.86 | 6.17 |
- Feature info: using fbank feature, dither, cmvn, online speed perturb
- Training info: lr 0.002, batch size, 4 gpus, acc_grad 4, 240 epochs, dither 0.1, warm up steps 25000
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 1bb4e5a269c535340fae5b0739482fa47733d2c1
| decoding mode | CER |
|---|---|
| attention decoder | 5.73 |
| ctc greedy search | 5.92 |
| ctc prefix beam search | 5.92 |
| attention rescoring | 5.31 |
- Feature info: using fbank feature, dither, cmvn, online speed perturb
- Training info: lr 0.004, batch size 16, 2 machines, 8*2=16 gpus, acc_grad 4, 240 epochs, dither 0.1, warm up steps 10000
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: f6b1409023440da1998d31abbcc3826dd40aaf35
| decoding mode | CER |
|---|---|
| attention decoder | 4.90 |
| ctc greedy search | 5.07 |
| ctc prefix beam search | 5.06 |
| attention rescoring | 4.65 |
- Feature info: using fbank feature, dither, cmvn, online speed perturb
- Training info: lr 0.002, batch size 16, 8 gpu, acc_grad 4, 240 epochs, dither 0.1
- Decoding info: ctc_weight 0.5, average_num 20
| decoding mode | with PE | without PE |
|---|---|---|
| attention decoder | 5.18 | 5.73 |
| ctc greedy search | 4.94 | 4.97 |
| ctc prefix beam search | 4.94 | 4.97 |
| attention rescoring | 4.61 | 4.69 |