5.1 sound on COD MW2

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juliant

104 posts

Master Geek
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#302165 3-Nov-2022 17:13

I have my PC connected to LG C8 TV via hdmi

As my receiver is older it does not support 4K pass through so I have an optical spdif cable from the optical out on the LG to the Digital in port on the receiver

This gives me stereo sound in the game. Even though I have the game settings set to LG TV which is working through the optical setting on the tv it is not 5.1

5.1 movies I play through the PC to the TV in the same arrangment will play in 5.1

In windows speaker configuration LG TV is only set as 2 channel. If I try to set it to something else I get a error saying the device is in use. BTW windows 11 no longer lets you select 5.1 only Dolby Atmos....anyway if this was the issue why would movies work OK? (OK some movies only work in stereo but others do dolby digital 5.1

I tried downloading the Dolby app but this did not help?

juliant

104 posts

Master Geek
+1 received by user: 4

#2991710 4-Nov-2022 07:45

Upon further investigation it appears windows 11 no longer has Dolby? and therefore I can only use PCM on the optical cable which is restricted to 2 channels

I also saw someone comment that when playing movies, the encoded DTS or Dolby audio is sent just fine, so this is something to do only with the discrete audio from windows and with gaming. This is my experience

Some people said they could type mmsys.cpl to get the old sound setttings and change to 5.1 there (but it would revert back to stereo if you changed outputs)

I could get to the same place in windows settings without typing mmsys.cpl but the thing is the 5.1 opton is no longer there for me.

richms

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#2991780 4-Nov-2022 11:41

Does your receiver has a 5.1 analog input? There are very cheap USB 5.1 audio adapters on the usual places that will get you the analog outs if your machine doesnt have them.

I have given up on audio over HDMI and am back on analog from the PC because of things dropping out and renegotiating when games change the output resolution which just got so annoying.

Richard rich.ms

juliant

104 posts

Master Geek
+1 received by user: 4

#2994671 11-Nov-2022 12:36

Sorry did not see this = used to get an email if someone replied to a post?

My PC is not near my receiver so would not want analog cables running along the floor. Not really a big deal most of the time I just use headphones anyway

Not 100% sure how these USB 5.1 adapters work - are they just creating 5 channels from 2 ie virtual channels rather than discrete channels. The boxes I saw did not appear to have 5 or 6 separate RCA type analog outputs.

Yes my receiver has 5.1 channel analog inputs.

richms

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#2994764 11-Nov-2022 16:01

The actual 5.1 USB cards have multiple 3.5mm outputs and inputs on them like the back of a motherboard does.

The BS 5.1 ones are just stereo devices that rely on you turning on windows fake 5.1 headphone stuff, or install drivers that have the same thing in them.

Richard rich.ms

cruxis

512 posts

Ultimate Geek
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#2994824 11-Nov-2022 18:10

I was in a similar situation, with a Older receiver vsx531 with HDMI 2.0, PC with 1 HDMI 2.1, and a LG C1 Oled HDMI 2.1

I just used another HDMI cable + Displayport adapter and connected that to the receiver and set windows 11 to use that as the audio output device. I also had set windows to duplicate displays. This way I did not have the Limitations of Optical Cable.

1) PC -> TV -> Receiver ARC, So When watching TV apps still get 5.1 sound. Windows 11 sound this way but is limited to stereo.

2) PC -> Receiver

When the Receiver is turned off / on, Windows swaps the sound output automatically.

juliant

104 posts

Master Geek
+1 received by user: 4

#2994900 11-Nov-2022 20:32

Dont quite follow - my receiver does not have an ARC only an optical in, and no display port....

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cruxis

512 posts

Ultimate Geek
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#2995087 12-Nov-2022 12:30

juliant:

Dont quite follow - my receiver does not have an ARC only an optical in, and no display port....

No HDMI in ports on the reciever? To connect the Graphic card into?

juliant

104 posts

Master Geek
+1 received by user: 4

#2995099 12-Nov-2022 13:28

Yes 3 HDMI in and 1 HDMI out on the receiver but no ARC in, only an optical in

I get dolby digital going from PC to tv and then optical out from tv to receiver, for movies etc, just not when gaming. I also get 4k video this way

I chose not to go HDMI from PC to receiver then hdmi out from receiver to tv, because my receiver does not support 4k and I wanted the 4k graphics

The issue is simply not being able to select 5.1 as a configuration in windows speaker settings for the tv.

I believe if I rolled back to earlier an windows update, the option would be there but they took it away after the recent "creators update?" I dont want to roll back versions as I said majority of time I just use 2 channel headphones when gaming anyway..