adjust levels

- Melody (Ban's vocals) (+ 1 db)
- Ashley (Ban's vocals) (- 0.75 db)

render.py

@@ -140,9 +140,9 @@ def compose(clips, target=150, base=1024, voice_over=None):
             elif 'Free' in voc['src']:
                 a, b = '5.2', '-3.8'
             elif 'Ashley' in voc['src']:
-                a, b = '3.75', '-5.25'
+                a, b = '4.50', '-4.50'
             elif 'Melody' in voc['src']:
-                a, b = '4.25', '-4.75'
+                a, b = '5.25', '-3.75'
             voc['filter'] = {'volume': a}
             scene['audio-center']['A1'].append(voc)
             vo_low = vo.copy()