Win11 not passing through DTS/DD signal over SPDIF?

[Zaph]

Hello community,

i was searching the internet back and forth regarding my problem and finally surfed onto this forum where some really knowledgeable ppl seem to dwell
Maybe someone can help me.
I've just recently build a new Home Theater PC based an a Asrock Z790m-itx motherboard with a intel i5-12500 cpu (OS: Win11) cause my old one couldnt play 2k or 4k videos.
Now i have the problem that if i play movies with dts/dd audio i've only get stereo on my AVR. Even though i can run the test with dts on the realtek digital output properties just fine - the AVR switches to dts and play on all speakers just fine.
I've tried to install the realtek original drivers but these arent fit for the Asrock motherboard - always get an error at the end of installation and have to use the Realtek drivers Asrock provides.
I've also tried at least 2 different movie players to rule out the player itself (normal i use the MPC-BE to play vids, also tried VLC with the same result - only stereo).

Does anyone know a fix for this problem? Or why it happens in the first place? I'm building my own pc's since at least 25 years and never had the problem that a digital output doesnt pass through surround signals...

Zaph

 

[Jumbotron]

Hi there,

I'm not an expert by any means and can't explain to you why that happens. I do not even have an AVR connected to my system currently. Several years ago, though, I had one. And what people with experience recommended to me was to connect the PC to the AVR via HDMI and not S/PDIF. That worked like a charm. And unless anything substantial has changed in these last years, I guess that's still the preferred method to have your PC connected to your AVR.

 

[Ferather]

You need to setup the media player to bitstream-passthrough. HDMI wont fix anything if your settings are wrong.

 

[IMABEARLOL]

K-Lite codec pack has always worked for me for bitstream passthrough on SPDIF

 

[Zaph]

You need to setup the media player to bitstream-passthrough. HDMI wont fix anything if your settings are wrong.

thats it, i forgot to install a codec pack. no spdif passthrough without a encoder like lav. as if i did set up a new pc the first time...
thanks for the help

 

[nicegirl05]

use ds1 with dolby digital plus home theater then download the application for it aswell so u have the eq then u well have dolby digital live with dolby pro logic 2x so all pc audio well bitstream to dolby digitals highest sample rate and stereo content well upmix to 7.1 surround sound or 5.1 due to it tech being dolby digital plus hope this helps!! http://puresoftapps.blogspot.com/2018/04/realtek-apo-driver.html