diff --git a/egs/aishell/branchformer/conf/train_asr_branchformer.yaml b/egs/aishell/branchformer/conf/train_asr_branchformer.yaml
index b01fd5b07..f35c89706 100644
--- a/egs/aishell/branchformer/conf/train_asr_branchformer.yaml
+++ b/egs/aishell/branchformer/conf/train_asr_branchformer.yaml
@@ -97,7 +97,7 @@ dataset_conf:
         sort_size: 500
     batch_conf:
         batch_type: token
-        batch_size: 20000
+        batch_size: 10000
     num_workers: 8
 
 log_interval: 50
diff --git a/egs/aishell/branchformer/conf/train_asr_branchformer_bs10000.yaml b/egs/aishell/branchformer/conf/train_asr_branchformer_bs10000.yaml
deleted file mode 100644
index f35c89706..000000000
--- a/egs/aishell/branchformer/conf/train_asr_branchformer_bs10000.yaml
+++ /dev/null
@@ -1,104 +0,0 @@
-# network architecture
-# encoder related
-encoder: branchformer
-encoder_conf:
-    output_size: 256
-    use_attn: true
-    attention_heads: 4
-    attention_layer_type: rel_selfattn
-    pos_enc_layer_type: rel_pos
-    rel_pos_type: latest
-    use_cgmlp: true
-    cgmlp_linear_units: 2048
-    cgmlp_conv_kernel: 31
-    use_linear_after_conv: false
-    gate_activation: identity
-    merge_method: concat
-    cgmlp_weight: 0.5               # used only if merge_method is "fixed_ave"
-    attn_branch_drop_rate: 0.0      # used only if merge_method is "learned_ave"
-    num_blocks: 24
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    attention_dropout_rate: 0.1
-    input_layer: conv2d
-    stochastic_depth_rate: 0.0
-
-# decoder related
-decoder: transformer
-decoder_conf:
-    attention_heads: 4
-    linear_units: 2048
-    num_blocks: 6
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    self_attention_dropout_rate: 0.
-    src_attention_dropout_rate: 0.
-
-# frontend related
-frontend: wav_frontend
-frontend_conf:
-    fs: 16000
-    window: hamming
-    n_mels: 80
-    frame_length: 25
-    frame_shift: 10
-    lfr_m: 1
-    lfr_n: 1
-
-# hybrid CTC/attention
-model_conf:
-    ctc_weight: 0.3
-    lsm_weight: 0.1     # label smoothing option
-    length_normalized_loss: false
-
-# optimization related
-accum_grad: 1
-grad_clip: 5
-max_epoch: 180
-val_scheduler_criterion:
-    - valid
-    - acc
-best_model_criterion:
--   - valid
-    - acc
-    - max
-keep_nbest_models: 10
-
-optim: adam
-optim_conf:
-   lr: 0.001
-   weight_decay: 0.000001
-scheduler: warmuplr
-scheduler_conf:
-   warmup_steps: 35000
-
-specaug: specaug
-specaug_conf:
-    apply_time_warp: true
-    time_warp_window: 5
-    time_warp_mode: bicubic
-    apply_freq_mask: true
-    freq_mask_width_range:
-    - 0
-    - 27
-    num_freq_mask: 2
-    apply_time_mask: true
-    time_mask_width_ratio_range:
-    - 0.
-    - 0.05
-    num_time_mask: 10
-
-dataset_conf:
-    data_names: speech,text
-    data_types: sound,text
-    shuffle: True
-    shuffle_conf:
-        shuffle_size: 2048
-        sort_size: 500
-    batch_conf:
-        batch_type: token
-        batch_size: 10000
-    num_workers: 8
-
-log_interval: 50
-normalize: None
\ No newline at end of file
diff --git a/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000.yaml b/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000.yaml
deleted file mode 100644
index 5f889d045..000000000
--- a/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000.yaml
+++ /dev/null
@@ -1,104 +0,0 @@
-# network architecture
-# encoder related
-encoder: branchformer
-encoder_conf:
-    output_size: 256
-    use_attn: true
-    attention_heads: 4
-    attention_layer_type: rel_selfattn
-    pos_enc_layer_type: rel_pos
-    rel_pos_type: latest
-    use_cgmlp: true
-    cgmlp_linear_units: 2048
-    cgmlp_conv_kernel: 31
-    use_linear_after_conv: false
-    gate_activation: identity
-    merge_method: concat
-    cgmlp_weight: 0.5               # used only if merge_method is "fixed_ave"
-    attn_branch_drop_rate: 0.0      # used only if merge_method is "learned_ave"
-    num_blocks: 24
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    attention_dropout_rate: 0.1
-    input_layer: conv2d
-    stochastic_depth_rate: 0.0
-
-# decoder related
-decoder: transformer
-decoder_conf:
-    attention_heads: 4
-    linear_units: 2048
-    num_blocks: 6
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    self_attention_dropout_rate: 0.
-    src_attention_dropout_rate: 0.
-
-# frontend related
-frontend: wav_frontend
-frontend_conf:
-    fs: 16000
-    window: hamming
-    n_mels: 80
-    frame_length: 25
-    frame_shift: 10
-    lfr_m: 1
-    lfr_n: 1
-
-# hybrid CTC/attention
-model_conf:
-    ctc_weight: 0.3
-    lsm_weight: 0.1     # label smoothing option
-    length_normalized_loss: false
-
-# optimization related
-accum_grad: 1
-grad_clip: 5
-max_epoch: 180
-val_scheduler_criterion:
-    - valid
-    - acc
-best_model_criterion:
--   - valid
-    - acc
-    - max
-keep_nbest_models: 10
-
-optim: adam
-optim_conf:
-   lr: 0.001
-   weight_decay: 0.000001
-scheduler: warmuplr
-scheduler_conf:
-   warmup_steps: 35000
-
-specaug: specaug
-specaug_conf:
-    apply_time_warp: true
-    time_warp_window: 5
-    time_warp_mode: bicubic
-    apply_freq_mask: true
-    freq_mask_width_range:
-    - 0
-    - 27
-    num_freq_mask: 2
-    apply_time_mask: true
-    time_mask_width_ratio_range:
-    - 0.
-    - 0.05
-    num_time_mask: 10
-
-dataset_conf:
-    data_names: speech,text
-    data_types: sound,text
-    shuffle: True
-    shuffle_conf:
-        shuffle_size: 2048
-        sort_size: 500
-    batch_conf:
-        batch_type: token
-        batch_size: 16000
-    num_workers: 8
-
-log_interval: 50
-normalize: None
\ No newline at end of file
diff --git a/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000_gc2.yaml b/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000_gc2.yaml
deleted file mode 100644
index bd5d934f9..000000000
--- a/egs/aishell/branchformer/conf/train_asr_branchformer_bs16000_gc2.yaml
+++ /dev/null
@@ -1,104 +0,0 @@
-# network architecture
-# encoder related
-encoder: branchformer
-encoder_conf:
-    output_size: 256
-    use_attn: true
-    attention_heads: 4
-    attention_layer_type: rel_selfattn
-    pos_enc_layer_type: rel_pos
-    rel_pos_type: latest
-    use_cgmlp: true
-    cgmlp_linear_units: 2048
-    cgmlp_conv_kernel: 31
-    use_linear_after_conv: false
-    gate_activation: identity
-    merge_method: concat
-    cgmlp_weight: 0.5               # used only if merge_method is "fixed_ave"
-    attn_branch_drop_rate: 0.0      # used only if merge_method is "learned_ave"
-    num_blocks: 24
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    attention_dropout_rate: 0.1
-    input_layer: conv2d
-    stochastic_depth_rate: 0.0
-
-# decoder related
-decoder: transformer
-decoder_conf:
-    attention_heads: 4
-    linear_units: 2048
-    num_blocks: 6
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    self_attention_dropout_rate: 0.
-    src_attention_dropout_rate: 0.
-
-# frontend related
-frontend: wav_frontend
-frontend_conf:
-    fs: 16000
-    window: hamming
-    n_mels: 80
-    frame_length: 25
-    frame_shift: 10
-    lfr_m: 1
-    lfr_n: 1
-
-# hybrid CTC/attention
-model_conf:
-    ctc_weight: 0.3
-    lsm_weight: 0.1     # label smoothing option
-    length_normalized_loss: false
-
-# optimization related
-accum_grad: 2
-grad_clip: 5
-max_epoch: 180
-val_scheduler_criterion:
-    - valid
-    - acc
-best_model_criterion:
--   - valid
-    - acc
-    - max
-keep_nbest_models: 10
-
-optim: adam
-optim_conf:
-   lr: 0.001
-   weight_decay: 0.000001
-scheduler: warmuplr
-scheduler_conf:
-   warmup_steps: 35000
-
-specaug: specaug
-specaug_conf:
-    apply_time_warp: true
-    time_warp_window: 5
-    time_warp_mode: bicubic
-    apply_freq_mask: true
-    freq_mask_width_range:
-    - 0
-    - 27
-    num_freq_mask: 2
-    apply_time_mask: true
-    time_mask_width_ratio_range:
-    - 0.
-    - 0.05
-    num_time_mask: 10
-
-dataset_conf:
-    data_names: speech,text
-    data_types: sound,text
-    shuffle: True
-    shuffle_conf:
-        shuffle_size: 2048
-        sort_size: 500
-    batch_conf:
-        batch_type: token
-        batch_size: 16000
-    num_workers: 8
-
-log_interval: 50
-normalize: None
\ No newline at end of file
diff --git a/egs/aishell/branchformer/run.sh b/egs/aishell/branchformer/run.sh
index 37336ea4c..6bb4a0cc5 100755
--- a/egs/aishell/branchformer/run.sh
+++ b/egs/aishell/branchformer/run.sh
@@ -46,10 +46,7 @@ train_set=train
 valid_set=dev
 test_sets="dev test"
 
-#asr_config=conf/train_asr_branchformer.yaml
-#asr_config=conf/train_asr_branchformer_bs16000.yaml
-asr_config=conf/train_asr_branchformer_bs16000_gc2.yaml
-#asr_config=conf/train_asr_branchformer_bs10000.yaml
+asr_config=conf/train_asr_branchformer.yaml
 model_dir="baseline_$(basename "${asr_config}" .yaml)_${lang}_${token_type}_${tag}"
 
 inference_config=conf/decode_asr_transformer.yaml
diff --git a/egs/aishell/e_branchformer/conf/train_asr_e_branchformer_bs16000.yaml b/egs/aishell/e_branchformer/conf/train_asr_e_branchformer_bs16000.yaml
deleted file mode 100644
index 6e81f4830..000000000
--- a/egs/aishell/e_branchformer/conf/train_asr_e_branchformer_bs16000.yaml
+++ /dev/null
@@ -1,101 +0,0 @@
-# network architecture
-# encoder related
-encoder: e_branchformer
-encoder_conf:
-    output_size: 256
-    attention_heads: 4
-    attention_layer_type: rel_selfattn
-    pos_enc_layer_type: rel_pos
-    rel_pos_type: latest
-    cgmlp_linear_units: 1024
-    cgmlp_conv_kernel: 31
-    use_linear_after_conv: false
-    gate_activation: identity
-    num_blocks: 12
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    attention_dropout_rate: 0.1
-    input_layer: conv2d
-    layer_drop_rate: 0.0
-    linear_units: 1024
-    positionwise_layer_type: linear
-    use_ffn: true
-    macaron_ffn: true
-    merge_conv_kernel: 31
-
-# decoder related
-decoder: transformer
-decoder_conf:
-    attention_heads: 4
-    linear_units: 2048
-    num_blocks: 6
-    dropout_rate: 0.1
-    positional_dropout_rate: 0.1
-    self_attention_dropout_rate: 0.
-    src_attention_dropout_rate: 0.
-
-# frontend related
-frontend: wav_frontend
-frontend_conf:
-    fs: 16000
-    window: hamming
-    n_mels: 80
-    frame_length: 25
-    frame_shift: 10
-    lfr_m: 1
-    lfr_n: 1
-
-# hybrid CTC/attention
-model_conf:
-    ctc_weight: 0.3
-    lsm_weight: 0.1     # label smoothing option
-    length_normalized_loss: false
-
-# optimization related
-accum_grad: 1
-grad_clip: 5
-max_epoch: 180
-best_model_criterion:
--   - valid
-    - acc
-    - max
-keep_nbest_models: 10
-
-optim: adam
-optim_conf:
-   lr: 0.001
-   weight_decay: 0.000001
-scheduler: warmuplr
-scheduler_conf:
-   warmup_steps: 35000
-
-specaug: specaug
-specaug_conf:
-    apply_time_warp: true
-    time_warp_window: 5
-    time_warp_mode: bicubic
-    apply_freq_mask: true
-    freq_mask_width_range:
-    - 0
-    - 27
-    num_freq_mask: 2
-    apply_time_mask: true
-    time_mask_width_ratio_range:
-    - 0.
-    - 0.05
-    num_time_mask: 10
-
-dataset_conf:
-    data_names: speech,text
-    data_types: sound,text
-    shuffle: True
-    shuffle_conf:
-        shuffle_size: 2048
-        sort_size: 500
-    batch_conf:
-        batch_type: token
-        batch_size: 16000
-    num_workers: 8
-
-log_interval: 50
-normalize: None
\ No newline at end of file
diff --git a/egs/aishell/e_branchformer/run.sh b/egs/aishell/e_branchformer/run.sh
index 8290ebf58..bcba2d75f 100755
--- a/egs/aishell/e_branchformer/run.sh
+++ b/egs/aishell/e_branchformer/run.sh
@@ -46,8 +46,7 @@ train_set=train
 valid_set=dev
 test_sets="dev test"
 
-#asr_config=conf/train_asr_e_branchformer.yaml
-asr_config=conf/train_asr_e_branchformer_bs16000.yaml
+asr_config=conf/train_asr_e_branchformer.yaml
 model_dir="baseline_$(basename "${asr_config}" .yaml)_${lang}_${token_type}_${tag}"
 
 inference_config=conf/decode_asr_transformer.yaml