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Multiple HDMI channels as simultaneous outputs?

2K views 3 replies 2 participants last post by  GCG 
#1 ·
I asked this as part of a response to to another post on a similar tack.

When using HDMI as an output source is it possible to use more than one channel (left+sub, right+sub, all, etc.) in a measurement sweep? If so, how?
 
#3 ·
And just for the sake of being thorough, that answer is paraphrased here:

On the REW Preferences page. select Output to go to HDMI 1 and Timing Reference Output to go to HDMI 2. Now you have the REW sweep output going to two channels, your L & R mains, at the same time.

BEWARE: Doing this is only meaningful at low frequencies, 200 Hz and below, where you might want to see how the sub or subs and the low-frequency response regions of your L & R Mains all work together in your room. Above that, L + sub or R + sub plots should be taken separately.
 
#4 ·
Is there any benefit to running a full system (all speakers + sub) full range sweep?
 
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