Just search for "EARC audio extractor" and check that it supports Atmos and DTS-X. This might work: https://www.amazon.com/Extractor-Splitter-Dedicated-extracting-Supports/dp/B093K6FHQM
No HDMI 2.1 EARC extractor needed. Connect the PS5 directly to the TV, connect a cheap EARC extractor to the EARC output of the TV, and the audio out HDMI of the extractor to your AVR.
There's already a loop, and it's external. Remove the external USB jumper, get an USB<>S/PDIF or USB<>AES/EBU thing and connect its USB to the RPI, the output to the DDRC22D, and its output to the DAC8. You can probably leave the jumper connected and just choose the new output device in Volumio...
DIY is the way to go, if your budget doesn't stretch beyond $10k. https://www.audiosciencereview.com/forum/index.php?threads/adding-post-dsp-spdif-outputs-to-avrs.19468/
A 1100$ low end Onkyo, a few of those I2S -> S/PDIF boards, a soldering iron and a steady hand my be all you need...
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A BSEE from decades ago may not be too helpful regarding the current code and/or best practice for residential electric installations.
There's little to no protection from induced overvoltages e.g. by nearby lightning strikes or space weather - the transformer on the pole near your house...
I think you can have them plugged in, but you'd probably have to make sure only one is active (i.e. not just muted, there must not even be a clock signal)
Or ask Pavel to make a single input (or source routing presets) selectable via remote control. I've been looking for an AES/EBU switch, and given the price of these things, I'm tempted to just buy the BM option for my DDRC-88D and use that just to switch inputs.
You're probably referring to Canare BCJ-XP-TR[ABC], those are working beautifully for me. Have you tried connecting your TV to input 1? Are you sure that your TV is sending a PCM signal? Is there any signal on input 1 while you have the TV connected to input 2 (if so, they need to be...
I'd say there are plans, but the practical execution isn't there yet. It's probably not trivial to implement a firmware update process that can be safely recovered in case of failure, especially if the bootloader of the units out in the field does not yet provide such a mechanism, and there's no...
Pavel has replied to my email. Apparently, there's a bug in some firmware revisions that causes the AES/EBU out to transmit only zeroes. It'll be fixed in future firmware versions, and he says he'll "attempt to release an update for the existing units".
That's well documented around here. Manufacturers who send devices for measurement get an opportunity to fix problems that crop up, If the device was privately bought by a forum member and sent to Amir, that's not the case.
Momentum Data Systems, their products are in a lot of "niche" AV products, like the Trinnov, Storm ISP, Bryston SP2 and SP3, Datasat, the Smyth Realiser etc.
My point is that neither Storm nor Trinnov have developed an AVP on their own from scratch. They both have skipped one of the really hard problems (Codecs and HDMI) by buying third party products. There's no shame in that, just that these aren't good examples that small companies can develop...