diff --git a/render_gongs.py b/render_gongs.py
index 56a391d..2bbca62 100755
--- a/render_gongs.py
+++ b/render_gongs.py
@@ -6,6 +6,7 @@ import subprocess
 from collections import defaultdict
 import string
 from glob import glob
+import time
 
 import nmt
 import numpy as np
@@ -106,7 +107,7 @@ def mix_gongs(data, output):
             mixed = mixed[:limit]
             track = track[:limit]
             mixed += track.astype(np.int)
-        print(n)
+        #print(n)
 
     d = np.sqrt(len(data))
     while \
@@ -123,7 +124,9 @@ if __name__ == '__main__':
     duration = float(sys.argv[2]) + 10
     tracks = int(sys.argv[3])
     output = sys.argv[4]
+    t0 = time.time()
     data = get_gongs(seq, {}, duration, tracks)
     mix_gongs(data, output)
     with open(output + '.json', 'w') as fd:
         json.dump(result, fd, indent=4, sort_keys=True)
+    print('render_gongs of %s took %s' % (output, time.time()-t0))