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The original was posted on /r/hometheater by /u/blacktongue on 2023-09-26 21:14:51+00:00.
Hi,
Setup here is:
Nvidia Shield Pro (source)
Marantz NR 1602 (AVR)
BenQ HT-3550 4K/HDR (Projector)
My AVR doesn't support 4K or Atmos, but otherwise is great for my needs. I just upgraded to this projector, and would love to be able to get 4K picture and the best possible sound, but I've been having trouble.
Going (Shield)>HDMI>(AVR)>HDMI>(Projector), I get the best ease of control and sound signal, but only 1080p. Fine, what works for now, but not ideal.
(Shield)>HDMI>(Projector) is the only way to get 4K, but I'm having trouble getting audio with all three of the following options:
Optical: Turning on the projector's optical out. running (Projector)>Optical>(AVR), and switching to the optical input on the receiver doesn't work for some reason. I've never hooked up any toslink devices to this receiver before, so either that function randomly doesn't work, or I'm not choosing the right Input settings to get the AVR to play from the optical source.
HDMI ARC: Maybe I'm completely wrong in thinking this could have worked, but I plugged HDMI from the Shield into HDMI-2 on the projector, turned on ARC (only works through HDMI-1 on the projector,) and ran HDMI cable from HDMI-1 to one of the HDMI inputs on the receiver. Maybe the projector won't send ARC down a different channel than the one it's getting the signal on (my guess), or I can't get my AVR to recognize and play an audio-only signal through an HDMI.
HDMI Audio Splitter: I also tried using an old HDMI Audio extractor, that takes an HDMI-in and puts out HDMI video and sound via Optical. That either didn't work at all, or put out 1080p with no sound through optical.
Any thoughts? The on-screen directions and manual from the AVR are pretty obtuse, like most always are, but I can't figure out why at least the Optical solution isn't working, even if that's not the best possible sound quality.