Per my blog post regarding fixing crossfading in XBMC over HDMI (on the Revo 1600): Download the asoundrc.txt file (contents shown below) Copy the file to the /home/xbmc directory Rename the file from asoundrc.txt to .asoundrc Change the audio output device to default (under System > Settings > System > Audio Output) Restart XBMC and crossfading should now be working.