Hello . . . I have an odd problem and searching the forum hasn't shown a clear solution. I have a mac mini (late 2014 running 10.11.6) outputting HDMI to a Marantz N1506 receiver. Midi output goes to the Marantz 48000 Hz, 8ch - 24bit integer. Speakers are mapped L,R,C,LFE,Ls,Rs. I'm running VLC 3.0....