diff --git a/egs/librispeech/ASR/.conv_feat_vis.py.swp b/egs/librispeech/ASR/.conv_feat_vis.py.swp
index 4999c217c..64ecc41a0 100644
Binary files a/egs/librispeech/ASR/.conv_feat_vis.py.swp and b/egs/librispeech/ASR/.conv_feat_vis.py.swp differ
diff --git a/egs/librispeech/ASR/conv_feat_vis.py b/egs/librispeech/ASR/conv_feat_vis.py
index db776d9cf..70c757a00 100644
--- a/egs/librispeech/ASR/conv_feat_vis.py
+++ b/egs/librispeech/ASR/conv_feat_vis.py
@@ -26,7 +26,7 @@ for spk in tqdm(spk_list):
     for i in tqdm(range(512), leave=False):
         mean = feats_all[i].mean()
         std = feats_all[i].std()
-        static_file.write(f'{mean} {std}')
+        static_file.write(f'{mean} {std}\n')
     '''
     for i in range(512):
         plt.hist(feats_all[i], bins=500)