diff --git a/recipes/Voicebank/enhance/MetricGAN-U/train.py b/recipes/Voicebank/enhance/MetricGAN-U/train.py
index a0c68acd4a265c5f61daadc505a9a6b2ea7c2fd8..0bbd7f83700b6ae7b28155e6740113c18944865f 100644
--- a/recipes/Voicebank/enhance/MetricGAN-U/train.py
+++ b/recipes/Voicebank/enhance/MetricGAN-U/train.py
@@ -109,6 +109,8 @@ def dnsmos_eval(predict, target):
     pred_wav = pred_wav / max(abs(pred_wav))
     pred_wav = pred_wav[np.newaxis, :]
     
+    print("predwav_type", type(pred_wav), "shape", pred_wav.shape)
+    
     scores = dnsmos_func.run(pred_wav, sr=16000)
     score = scores["p808_mos"]
     score = float(sigmoid(score))  # normalize the score to 0~1
@@ -145,6 +147,8 @@ def dnsmos_eval_valid(predict, target):
     pred_wav = pred_wav.numpy()
     pred_wav = pred_wav / max(abs(pred_wav))
     
+    print("predwav_type", type(pred_wav), "shape", pred_wav.shape)
+    
     scores = dnsmos_func.run(pred_wav, sr=16000)
     score = scores["p808_mos"]
     return score