diff --git a/examples/aishell/asr0/conf/deepspeech2.yaml b/examples/aishell/asr0/conf/deepspeech2.yaml
index 1dc8581e..338810fa 100644
--- a/examples/aishell/asr0/conf/deepspeech2.yaml
+++ b/examples/aishell/asr0/conf/deepspeech2.yaml
@@ -23,7 +23,7 @@ augmentation_config: conf/augmentation.json
 random_seed: 0
 spm_model_prefix: 
 spectrum_type: linear
-feat_dim: 
+feat_dim: 161
 delta_delta: False
 stride_ms: 10.0
 window_ms: 20.0
@@ -56,7 +56,7 @@ n_epoch: 80
 accum_grad: 1
 lr: 2e-3
 lr_decay: 0.83
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 3.0
 log_interval: 100
 checkpoint:
diff --git a/examples/aishell/asr0/conf/deepspeech2_online.yaml b/examples/aishell/asr0/conf/deepspeech2_online.yaml
index c49973a2..b5f164eb 100644
--- a/examples/aishell/asr0/conf/deepspeech2_online.yaml
+++ b/examples/aishell/asr0/conf/deepspeech2_online.yaml
@@ -23,7 +23,7 @@ augmentation_config: conf/augmentation.json
 random_seed: 0
 spm_model_prefix: 
 spectrum_type: linear #linear, mfcc, fbank
-feat_dim: 
+feat_dim: 161
 delta_delta: False
 stride_ms: 10.0
 window_ms: 20.0
@@ -58,7 +58,7 @@ n_epoch: 65
 accum_grad: 1
 lr: 5e-4
 lr_decay: 0.93
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 3.0
 log_interval: 100
 checkpoint:
diff --git a/examples/tiny/asr0/conf/deepspeech2.yaml b/examples/tiny/asr0/conf/deepspeech2.yaml
index a16a79d3..a8d77388 100644
--- a/examples/tiny/asr0/conf/deepspeech2.yaml
+++ b/examples/tiny/asr0/conf/deepspeech2.yaml
@@ -23,7 +23,7 @@ augmentation_config: conf/augmentation.json
 random_seed: 0
 spm_model_prefix: 
 spectrum_type: linear
-feat_dim: 
+feat_dim: 161
 delta_delta: False
 stride_ms: 10.0
 window_ms: 20.0
@@ -57,7 +57,7 @@ n_epoch: 5
 accum_grad: 1
 lr: 1e-5 
 lr_decay: 0.8 
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 5.0
 log_interval: 1
 checkpoint:
diff --git a/examples/tiny/asr0/conf/deepspeech2_online.yaml b/examples/tiny/asr0/conf/deepspeech2_online.yaml
index 5458cfb3..a5b6e3f7 100644
--- a/examples/tiny/asr0/conf/deepspeech2_online.yaml
+++ b/examples/tiny/asr0/conf/deepspeech2_online.yaml
@@ -23,7 +23,7 @@ augmentation_config: conf/augmentation.json
 random_seed: 0
 spm_model_prefix: 
 spectrum_type: linear
-feat_dim: 
+feat_dim: 161
 delta_delta: False
 stride_ms: 10.0
 window_ms: 20.0
@@ -59,7 +59,7 @@ n_epoch: 5
 accum_grad: 1
 lr: 1e-5 
 lr_decay: 1.0 
-weight_decay: 1e-06
+weight_decay: 1.0e-6
 global_grad_clip: 5.0
 log_interval: 1
 checkpoint: