diff --git a/render_mlt.py b/render_mlt.py
index 0560486..471f951 100755
--- a/render_mlt.py
+++ b/render_mlt.py
@@ -15,7 +15,11 @@ app = QtWidgets.QApplication(sys.argv)
 #mlt.mlt_log_set_level(40) # verbose
 mlt.Factory.init()
 
-tractor = mlt.Tractor()
+fps = 60
+profile = mlt.Profile("atsc_1080p_%d" % fps)
+#profile.set_explicit(1)
+
+tractor = mlt.Tractor(profile)
 tractor.mark_in = -1
 tractor.mark_out = -1
 
@@ -41,14 +45,6 @@ vocals = mlt.Playlist()
 drones0 = mlt.Playlist()
 drones1 = mlt.Playlist()
 
-fps = 60
-profile = mlt.Profile("atsc_1080p_%d" % fps)
-#profile.set_explicit(1)
-
-# get profile from clip
-#clip = mlt.Producer(profile, 'test.mp4')
-#profile.from_producer(clip)
-
 def add_color(playlist, color, duration):
     red = mlt.Producer(profile, 'color:' + color)
     red.set_in_and_out(0, duration)
@@ -59,7 +55,7 @@ def add_clip(playlist, file_, in_, duration):
         file_ = file_.encode('utf-8')
     '''
     info = ox.avinfo(file_)
-    tractor = mlt.Tractor()
+    tractor = mlt.Tractor(profile)
     tracks = tractor.multitrack()
     video = mlt.Playlist()
     '''
@@ -169,7 +165,7 @@ volume.set("gain", '0.12')
 tractor.plant_filter(volume)
 
 def mix_audio_tracks(a, b, ratio):
-    tractor = mlt.Tractor()
+    tractor = mlt.Tractor(profile)
     tractor.mark_in = -1
     tractor.mark_out = -1
 
@@ -224,7 +220,7 @@ add_audio_clip(audiomix, target_audio_wav, int(duration * fps))
 dtractor = mix_audio_tracks(audiomix, tractor, 0.29)
 
 
-output = mlt.Tractor()
+output = mlt.Tractor(profile)
 tractor.mark_in = -1
 tractor.mark_out = -1
 output_tracks = output.multitrack()