Boost low volume in XBMC

AC3 encoded movies usually have very low volume. To fix this edit the /usr/share/xbmc/system/advancedsettings.xml file and add this audio ac3downmixgain parameter inside the <advancedsettings>...</advancedsettings> tags:

<advancedsettings>
  ...
  <audio>
    <ac3downmixgain>24.0</ac3downmixgain>
  </audio>
</advancedsettings>

It’s default value is 12.0 so change it until it fits the volume you want and beware because althougt the option says ac3downmixgain it boosts the volume for ALL codecs.

speaker

Ref: http://forum.xbmc.org/showthread.php?tid=164929&pid=1421472#pid1421472

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