AV Receiver Advice

[BristolBEAT]

New the PC Building game. It's really fun picking all the parts out yourself.

One question.

I currently have an Pioneer AV Receiver with 5.1 speakers. My Xbox and Switch run on different HDMI INs and then HDMI out to my TV. I'd simply like to add my PC but it's proving a head scratcher.

Once I've built my PC with and MSI 144hz gaming monitor how would you advise connecting up the AV receiver to the PC/monitor? The receiver only has 1x HDMI out so I couldn't connect both TV and monitor at the same time.

Also what about ms lag this may or may not introduce?

 

[BristolBEAT]

Thinking of getting a new receiver (for Dolby Atmos). Some receivers have two HDMI outs. Anyone know what the secondary 'sub' HDMI out is? Is it just a second out?

https://www.richersounds.com/promotions/summer-savings-av-separates/onkyo-txnr686-black.html

Splitters worry me when I'm focusing so much on the spec of the monitor.

 

[BristolBEAT]

Am I going about this the wrong way, am I being stupid. Can you just route the audio only (coaxial) to the PC audio card?

 

[BristolBEAT]

I want to forget the picture at this stage, the MSI monitor would be connected to the GFX card, end.

For the sound I'm looking at various sound cards, would I simply connect this card using Optical (TOSlink) to the receiver. Then do receivers have an option to just select the optical audio input?

 

[BristolBEAT]

Most receivers should have an optical connection available that can be assigned to an input name. In my case with a marantz av7701, I have optical 1 assigned to the audio input on "media player". In a basic setup this would only get you stereo PCM. The best you can get out of optical is 5.1 as bitstream which would require a suitable sound card featuring dolby digital live or dts connect.

Any suggestions which sound card you would buy? Would this support Dolby Atmos if the receiver did? I know you can get the Windows Dolby Atmos app which simulates it.