In asus soundcard settingjust leave it to PCM
In Media Player Home Cinema set bitstream to DD & DTS (nothing more don't tick the HD options)
DD Live means it'll convert audio to Dolby Digital, you don't want that. For PCM audio you want it to leave to PCM audio, no resampling
flacs sound fine, just test 44.1khz PCM and 48khz PCM shows as that original on your AVR. If it shows 44khz as 48khz or Dolby Digital 5.1 there is transcoding going on.
HDMI from PC worked, it was just the display issues with that, since HDMI is video and audio, windows was showing it was a dual display setup, so it was seeing the AVR as a "display" so I either had to clone, mirror or extended it. When I wanted none of those, I just wanted the audio from HDMI.
Regardless a PC isn't a great music source, I much better a Squeezebox and using Pi5 with LMS, much better than Foobar, although if I'm on the computer than PC as a audio player is ok. But the dedicated audio streamers are still better.
So are the dedicated video streamers, a cheap AMlogic box does video playback better, totally silent etc
When I use PCM out via optical I only get 2.1 audio for some reason. I often forget to switch over to PCM when listening to music and tbh rarely notice, but can imagine it's a bad compression yeah. It's difficult to do an A-B comparison because on PCM it ups the volume and bass. I've never once had surround sound from PC to AVR unless I use DD Live
The audiophile dudes say optical cant handle much above 320kbps because of limitations of optical and FLACS can be well over 1000kbps. I think my FLACS sound great, but might be inclined to agree with them because I don't think on my setup FLACs sound much better than a good quality MP3. I've also no complaints with audio quality on youtube or downloaded movies etc... Maybe my ears aren't great from all the motorbiking! But yeah, only 5.1.
Yeah I've heard unfortunately you have to have it set to dual display.
If you just duplicate surely you could just set the 2nd feed to AVR as like 800x600 or something? Maybe it wouldn't use too much gpu power?
Myself, I can't even get the audio to go through GPU to my AVR. The AVR gets nothing.
And if try ARC instead: my TV's HDMI source (HDMI 1 for PC) just keeps switching to HDMI 2: my blu ray, fire cube, or whatever is connected to the AVR. Sometimes this kit turns on as soon as I turn easy-link on... which is needed for ARC. Oddly, ARC instead from TV apps (eg netflix) works fine to AVR... I open netflix and AVR switched to "TV audio"... it's like it needs the AVR needs to like automatically switch to "TV audio" which it does when you play something on TV, but with HDMI it doesn't...
My "Nvidia HD audio" does come out of my TV speakers ok though.
This is why my sound card lives on to 2025 haha!
LS50 are totally overrated overhyped speakers.
Thought it weird as first time I heard someone say that and they must have 1000's of 5star reviews however looked at them and noticed although the METAs I heard were stunning and maybe deserve the hype, they are actually not active, so maybe you'd have to have spent over +££££ on an amp (AND +££££ on a sub) for them to shine. Not sure I'd choose them over floorstander's but for £1200 I'd even say better than any bookshelf I've heard, inc Fyne Audio, B&W or Quad.
But then you could get some KEF q150s, a decent sub AND an amp for £1200 with money left over so maybe you're right! What didn't you like about them? A bit boring?
I wouldn't use a PC for a primary surround sound source, for me it's just one extra source- and gaming to AVR only
For two channel PCM- use Wiim or Squeezebox (analogue or digital out to AVR)
for TV series/movies- use dedicated video streamer (HDMI to AVR) these will pass all HD formats, DTSX, Atmos etc no problems, framerate switching, totally silent, IR control etc etc. £50 job done.
PC- for gaming- and use spdif from motherboard header or asus soundcard, for gaming or whenever you're in foobar for music playback
As said already using optical... rarely watch movies on pc (only if I cant find a 4k blu ray really), when you did it via hdmi out and could clone/mirror/extend did you ever get 7.1 working?