diff --git a/examples/aishell/asr1/conf/chunk_conformer.yaml b/examples/aishell/asr1/conf/chunk_conformer.yaml
index 1ad77f97e..9f70e4c57 100644
--- a/examples/aishell/asr1/conf/chunk_conformer.yaml
+++ b/examples/aishell/asr1/conf/chunk_conformer.yaml
@@ -39,6 +39,7 @@ model_conf:
     ctc_weight: 0.3
     lsm_weight: 0.1     # label smoothing option
     length_normalized_loss: false
+    init_type: 'kaiming_uniform' 
 
 ###########################################
 #                   Data                  #
@@ -61,12 +62,12 @@ 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
 batch_count: auto
-batch_bins: 0 
+batch_bins: 0
 batch_frames_in: 0
 batch_frames_out: 0
 batch_frames_inout: 0
@@ -77,13 +78,13 @@ num_encs: 1
 ###########################################
 #                 Training                #
 ###########################################
-n_epoch: 240 
-accum_grad: 2
+n_epoch: 180 
+accum_grad: 1
 global_grad_clip: 5.0
 dist_sampler: True
 optim: adam
 optim_conf:
-  lr: 0.002
+  lr: 0.001
   weight_decay: 1.0e-6
 scheduler: warmuplr
 scheduler_conf:
@@ -93,4 +94,3 @@ log_interval: 100
 checkpoint:
   kbest_n: 50
   latest_n: 5
-