diff --git a/render.py b/render.py
index d4b6194..7c1d9ae 100644
--- a/render.py
+++ b/render.py
@@ -268,8 +268,8 @@ def compose(clips, fragment, target=150, base=1024, voice_over=None, options=Non
             #    a, b = '5', '-1'
             if vo_b:
                 a, b = '2', '-4'
-                vo_b_a = '1'
-                vo_b_b = '-5'
+                vo_b_a = '-1'
+                vo_b_b = '-7'
             voc['filter'] = {'volume': a}
             scene['audio-center']['A1'].append(voc)
             vo_low = vo.copy()