Merge pull request #2104 from PaddlePaddle/Jackwaterveg-patch-1

[Doc] Update conformer_aishell pretrained model

docs/source/released_model.md

@@ -10,7 +10,7 @@ Acoustic Model | Training Data | Token-based | Size | Descriptions | CER | WER |
 [Ds2 Offline Aishell ASR0 Model](https://paddlespeech.bj.bcebos.com/s2t/aishell/asr0/asr0_deepspeech2_offline_aishell_ckpt_1.0.1.model.tar.gz)| Aishell Dataset | Char-based | 1.4 GB | 2 Conv + 5 bidirectional LSTM layers| 0.0554 |-| 151 h | [Ds2 Offline Aishell ASR0](../../examples/aishell/asr0) | inference/python |
 [Conformer Online Wenetspeech ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/wenetspeech/asr1/asr1_chunk_conformer_wenetspeech_ckpt_1.0.0a.model.tar.gz) | WenetSpeech Dataset | Char-based | 457 MB  | Encoder:Conformer, Decoder:Transformer, Decoding method: Attention rescoring| 0.11 (test\_net) 0.1879 (test\_meeting) |-| 10000 h |- | python |
 [Conformer Online Aishell ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/aishell/asr1/asr1_chunk_conformer_aishell_ckpt_0.2.0.model.tar.gz) | Aishell Dataset | Char-based | 189 MB  | Encoder:Conformer, Decoder:Transformer, Decoding method: Attention rescoring| 0.0544 |-| 151 h | [Conformer Online Aishell ASR1](../../examples/aishell/asr1) | python |
-[Conformer Offline Aishell ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/aishell/asr1/asr1_conformer_aishell_ckpt_0.1.2.model.tar.gz) | Aishell Dataset | Char-based | 189 MB  | Encoder:Conformer, Decoder:Transformer, Decoding method: Attention rescoring | 0.0464 |-| 151 h | [Conformer Offline Aishell ASR1](../../examples/aishell/asr1) | python |
+[Conformer Offline Aishell ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/aishell/asr1/asr1_conformer_aishell_ckpt_1.0.1.model.tar.gz) | Aishell Dataset | Char-based | 189 MB  | Encoder:Conformer, Decoder:Transformer, Decoding method: Attention rescoring | 0.0460 |-| 151 h | [Conformer Offline Aishell ASR1](../../examples/aishell/asr1) | python |
 [Transformer Aishell ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/aishell/asr1/asr1_transformer_aishell_ckpt_0.1.1.model.tar.gz) | Aishell Dataset | Char-based | 128 MB | Encoder:Transformer, Decoder:Transformer, Decoding method: Attention rescoring | 0.0523 || 151 h | [Transformer  Aishell ASR1](../../examples/aishell/asr1) | python |
 [Ds2 Offline Librispeech ASR0 Model](https://paddlespeech.bj.bcebos.com/s2t/librispeech/asr0/asr0_deepspeech2_offline_librispeech_ckpt_1.0.1.model.tar.gz)| Librispeech Dataset | Char-based | 1.3 GB | 2 Conv + 5 bidirectional LSTM layers| - |0.0467| 960 h | [Ds2 Offline Librispeech ASR0](../../examples/librispeech/asr0) | inference/python |
 [Conformer Librispeech ASR1 Model](https://paddlespeech.bj.bcebos.com/s2t/librispeech/asr1/asr1_conformer_librispeech_ckpt_0.1.1.model.tar.gz) | Librispeech Dataset | subword-based | 191 MB | Encoder:Conformer, Decoder:Transformer, Decoding method: Attention rescoring |-| 0.0338 | 960 h | [Conformer Librispeech ASR1](../../examples/librispeech/asr1) | python |

examples/aishell/asr1/RESULTS.md

@@ -2,13 +2,13 @@
 
 ## Conformer
 paddle version: 2.2.2  
-paddlespeech version: 0.2.0
+paddlespeech version: 1.0.1
 | Model | Params | Config | Augmentation| Test set | Decode method | Loss | CER |
 | --- | --- | --- | --- | --- | --- | --- | --- | 
-| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | attention | - | 0.0530 |
-| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | ctc_greedy_search | - | 0.0495 |
-| conformer | 47.07M  | conf/conformer.yaml | spec_aug| test | ctc_prefix_beam_search | - | 0.0494 | 
-| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | attention_rescoring | - | 0.0464 | 
+| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | attention | - | 0.0522 |
+| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | ctc_greedy_search | - | 0.0481 |
+| conformer | 47.07M  | conf/conformer.yaml | spec_aug| test | ctc_prefix_beam_search | - | 0.0480 | 
+| conformer | 47.07M  | conf/conformer.yaml | spec_aug | test | attention_rescoring | - | 0.0460 | 
 
 
 ## Conformer Streaming

examples/aishell/asr1/conf/conformer.yaml

@@ -57,7 +57,7 @@ feat_dim: 80
 stride_ms: 10.0
 window_ms: 25.0
 sortagrad: 0 # Feed samples from shortest to longest ; -1: enabled for all epochs, 0: disabled, other: enabled for 'other' epochs 
-batch_size: 64
+batch_size: 32
 maxlen_in: 512  # if input length  > maxlen-in, batchsize is automatically reduced
 maxlen_out: 150  # if output length > maxlen-out, batchsize is automatically reduced
 minibatches: 0 # for debug
@@ -73,8 +73,8 @@ num_encs: 1
 ###########################################
 #                Training                 #
 ###########################################
-n_epoch: 240 
-accum_grad: 2
+n_epoch: 150 
+accum_grad: 8
 global_grad_clip: 5.0
 dist_sampler: True
 optim: adam