diff --git a/oxtimeline/audio.py b/oxtimeline/audio.py
index b732b29..b02fbc5 100644
--- a/oxtimeline/audio.py
+++ b/oxtimeline/audio.py
@@ -89,8 +89,8 @@ class Audio(gst.Pipeline):
                 height = int((p * self.tile_height) / 256) * 2
                 crop = int((self.tile_height-height) / 2)
                 if p: p += 20
-                color = (p, p, p, 255)
-                color = (255,255,255,255)
+                color = (p, p, p)
+                color = (255,255,255)
 
                 if start:
                     end = self.tile_height - crop
@@ -144,7 +144,7 @@ class Timeline(Audio):
         ntiles = int(math.ceil(float(self.frames)/self.input_tile_width))
         self.tiles = []
         for i in range(ntiles):
-            tile = Image.new("RGBA", (self.input_tile_width, height), (0, 0, 0, 0))
+            tile = Image.new("RGB", (self.input_tile_width, height), (0, 0, 0))
             self.tiles.append(tile)
         
         self.set_state(gst.STATE_PLAYING)