Dolby Atmos/DTS:X with 4k 120Hz HDR

[masonan96]

So long story short, I am moving into a tiny home converted school bus full time. This means, minimal space, minimal internet. My Solution;

 

LG 48" CX - TV/Monitor for space saving plus OLED (maybe next gen, hopefully without the tumor on the back) 

Nvidia Shield Pro - 1080p Stream to 4k with AI Upscaling to save internet usage (streaming video). 

Gaming PC upgrade to RTX 3080 (HMDI 2.1) - Requirement

 

My problem is Dolby Atmos/DTS:X.. I want "good" surround (5.1.2) without a soundbar; It is a bus and so I will not be moving the room around, therefore the audio system is hard wired through the walls to the top firing(2), rear firing(2), front firing speakers(3), and sub(1). 

 

I am not sure if it is just me but these are my issues.;

1) I cannot figure out a way to keep 4k 120Hz HDR from the PC to the TV and get 5.1.2 Dolby Atmos/DTS:X to a Audio Receiver (downloaded content or gaming) 

2) Also, the Shield needs to connect to the same Audio Receiver with 5.1.2 (normal streaming services) 

 

Initially I thought of using TOSLINK from the PC, a USB to TOSLINK converter for the Shield, and a TOSLINK switch. It turns out TOSLINK can only do 5.1, so no good for Dolby Atmos/DTS:X. 

 

Any input appreciated! Thanks! 

[Stahlmann]

I run my setup like this:

 

PC -> TV (via HDMI 2.1)

TV -> Atmos Soundbar (via HDMI 2.1 eARC)

 

This way i have a single cable running from my PC to my TV (LG C9 OLED), and a then use the audio passthrough on the TV to get my audio to my soundbar (Samsung HW-Q80R). In windows i can just enable "Dolby Atmos for Home Theater" in the sound settings and i can see my soundbar reporting that it's receiving an Atmos signal.

 

Just use another "HDMI in" to plug in the Shield and you should be fine.

 

EDIT: Also the LG C-Series OLED TVs have very good upscaling on-board, so a Shield isn't really neccesary. I can barely tell a difference between 1080p 1440p or 4K on my TV when watching movies or shows through streaming services.

[masonan96]

19 minutes ago, Stahlmann said:

I run my setup like this:

 

PC -> TV (via HDMI 2.1)

TV -> Atmos Soundbar (via HDMI 2.1 eARC)

 

This way i have a single cable running from my PC to my TV (LG C9 OLED), and a then use the audio passthrough on the TV to get my audio to my soundbar (Samsung HW-Q80R). In windows i can just enable "Dolby Atmos for Home Theater" in the sound settings and i can see my soundbar reporting that it's receiving an Atmos signal.

 

Just use another "HDMI in" to plug in the Shield and you should be fine.

 

EDIT: Also the LG C-Series OLED TVs have very good upscaling on-board, so a Shield isn't really neccesary. I can barely tell a difference between 1080p 1440p or 4K on my TV when watching movies or shows through streaming services.

Okay I was worried that the HMDI 2.1 was unable to deliver 4k 120hz HDR with 5.1.2 sound based on bandwidth limitations. If not, then yeah its an easy solution. I won't be using a sound bar but I can use the eARC port on a Audio Receiver. 

 

Good to know about the TV having upscaling on board, I will run a 5e cable up to the TV then and just use it's built in upscaling and streaming services. Saves me a few hundred dollars. 

 

Thanks! 

[Stahlmann]

47 minutes ago, masonan96 said:

Okay I was worried that the HMDI 2.1 was unable to deliver 4k 120hz HDR with 5.1.2 sound based on bandwidth limitations. If not, then yeah its an easy solution. I won't be using a sound bar but I can use the eARC port on a Audio Receiver. 

 

Good to know about the TV having upscaling on board, I will run a 5e cable up to the TV then and just use it's built in upscaling and streaming services. Saves me a few hundred dollars. 

 

Thanks! 

Happy to help!

 

The bandwidth is nothing you have to worry about. 48Gbit 2.1 is enough for 4K 120Hz 12-bit HDR and eARC all at the same time. And even the 40Gbit the CX has is enough for 4K 120Hz 10-bit HDR with eARC.