- Feature info: using fbank feature, with cmvn, no speed perturb.
- Training info: lr 0.002, batch size 22, 8 gpus, acc_grad 1, 180 epochs, dither 0.0
- Decoding info: ctc_weight 0.5, average_num 30
- Git hash: 14d38085a8d966cf9e9577ffafc51d578dce954f
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell2/20210421_unified_transformer_exp.tar.gz
| decoding mode/chunk size | full | 16 | 8 | 4 |
|---|---|---|---|---|
| attention decoder | 6.71 | 7.08 | 7.17 | 7.40 |
| ctc greedy search | 7.84 | 8.68 | 8.98 | 9.46 |
| ctc prefix beam search | 7.86 | 8.68 | 8.98 | 9.45 |
| attention rescoring | 6.71 | 7.31 | 7.51 | 7.85 |
| LM + attention rescoring | 6.35 | 7.02 | 7.24 | 7.52 |
- Feature info: using fbank feature, with cmvn, no speed perturb.
- Training info: lr 0.002, batch size 16, 8 gpus, acc_grad 1, 120 epochs, dither 1.0
- Decoding info: ctc_weight 0.5, average_num 20
- Git hash: 14d38085a8d966cf9e9577ffafc51d578dce954f
- Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/aishell2/20210421_unified_conformer_exp.tar.gz
| decoding mode/chunk size | full | 16 | 8 | 4 |
|---|---|---|---|---|
| attention decoder | 6.23 | 6.42 | 6.58 | 7.20 |
| ctc greedy search | 6.98 | 7.75 | 8.21 | 9.91 |
| ctc prefix beam search | 7.02 | 7.76 | 8.21 | 9.93 |
| attention rescoring | 6.08 | 6.46 | 6.72 | 7.79 |
| LM + attention rescoring | 5.87 | 6.37 | 6.47 | 6.61 |