Simple HDMI -- Is there a way to split video and HDMI ARC?

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Apologies is this is already in 1,000s of other posts but I have been unable to find it. I’m an old Sonos User (7 devices are going legacy soon, ugh!) -- I used the trade-up program to switch out one of my ZP-100s for a Sonos Amp and was pleased to see that the Amp has an HDMI input. I was hoping to be able to play audio from a Sony Short throw projector (an LSPX-P1 -- the ZP-100 of short-throw projectors). Alas, the LSPX-P1 has only a simple “HDMI out” port and not an “HDMI audio” or “HDMI ARC.” I assume I would need to get some device that would either split my HDMI into a ‘video’ and ‘ARC’ or some device that simply converts HDMI to ARC.

Looking at the message boards it looks like there are loads of people who need multiple splitters to hook up tons of devices -- for me it is much simpler but I’m still not sure which is the best route in order to get some audio for watching stuff on this projector.

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melvimbeAnswer

@controlav is correct, except that OP is using an Amp, not a Beam, so will need to purchase the adapter separately.

https://www.sonos.com/en-us/shop/optical-audio-adapter.html

I think the HDMI out on the connector box should carry both sound and video. If that is the case, everything should work if you simply hook up the AMP to the HDMI out. The audio-return thing shouldn’t be relevant in that setup.
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This is incorrect. While HDMI is designed to carry video and audio signal, Amp and Beam don’t read the audio signal this way. “ARC” stands for Audio Return Channel, meaning audio is returning back along the cable in the opposite direction from the normal video/audio signal...and this is what the Amp reads.

Danny

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PLGDEES

Lyricist I

Hi
Without having read every posting, can I use my 4K splitter to carry my TV ARC HDMI audio/ video signals through my A/V receiver to a second TV in another room ??
Simple solution ?