diff --git a/render.py b/render.py
index f876b33..d9825be 100755
--- a/render.py
+++ b/render.py
@@ -185,8 +185,8 @@ def sequence(seq, letter):
         'music': [],
     }
     duration = 0
-    MAX_DURATION = 65 * 2
-    MIN_DURATION = 56 * 2
+    MAX_DURATION = 60 * 2 + 5
+    MIN_DURATION = 60 * 2 - 4
     while duration < MAX_DURATION and not duration >= MIN_DURATION:
         # clip duration: 1-10
         n = seq()
@@ -208,9 +208,11 @@ def sequence(seq, letter):
         clip = random_choice(seq, clips_n[tag])
         duration += clip['duration']
         result['clips'].append(clip.copy())
+    '''
     for clip in result['clips']:
         if seq() == 0:
             clip['black'] = True
+    '''
 
     # text overlay
     position = last_text = 0
@@ -267,7 +269,6 @@ def sequence(seq, letter):
                         and result[track][-1].get('blank') \
                         and result[track][-1]['duration'] > clip['duration']:
                     result[track][-1]['duration'] -= (position-duration)
-                    print('one last alignment')
                     position = duration
                 if position <= duration:
                     result[track].append(clip)