Contributor I

Problem getting Dolby Atmos on my Sonos Beam Gen 2 from LG C4 TV

15 replies
1716 views

Hi,

My Setup:

TV: LG OLED C4 65 inch

Soundbar: Sonos Beam Gen 2

Rear speakers: Sonos One SL x 2

I have read all threads here in this forum related to the same problem but are unable to show Dolby Atmos in the Sonos App.

I tried below that was suggested in another thread by GuitarSuperstar, but was unable to change everything but the first setting since that is greyed out.

HDMI Input Audio Format: Bitstream - this is greyed out on my TV and unable to change

Digital Sound Output: Pass Through

eARC Support: On

Then play the film The Tomorrow War from the TV’s native Prime Video app and tell us what audio format is displayed on the Now Playing screen in the Sonos app. - I tried with the Lord of the rings series season one episode 1 (which says should be Dolby Atmos)

Before changing the above the Sonos app said: Dolby Multichannel PCM 5.1

After changing the above the Sonos app now said: Dolby Digital Plus 5.1

I am streming through the built in Prime app in LG TV webos.

Any thoughts what need to be adjusted?

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jgatie

Amazon Prime only has Atmos if you are paying the extra for no ads. See this link:

https://www.theverge.com/24071417/amazon-prime-video-no-dolby-vision-atmos

T

ThjoolAuthor

Contributor I

Amazon Prime only has Atmos if you are paying the extra for no ads. See this link:

https://www.theverge.com/24071417/amazon-prime-video-no-dolby-vision-atmos

I am located in Sweden and when reading it seems that Swedish Prime only offers no-ads. At least I am unable to see any other info, or maybe I am wrong. It says:

Could this still be the problem, that they do not offer Dolby Atmos even when paying the normal fee in Sweden?

jgatie

I am located in Sweden and when reading it seems that Swedish Prime only offers no-ads. At least I am unable to see any other info, or maybe I am wrong. It says:

Could this still be the problem, that they do not offer Dolby Atmos even when paying the normal fee in Sweden?

If the content mirrors the US, I would guess Atmos requires an ad free subscription. But that would be a question for Amazon Sweden.

T

ThjoolAuthor

Contributor I

Confirmed now with Amazon that I have the correct subscription that would allow Dolby Atmos.

@GuitarSuperstar I know you have helped a lot of people here reading your answers. Do you have any input?

T

ThjoolAuthor

Contributor I

Is the problem that below is greyed out and why is that and how can i fix it not to be greyed out?

HDMI Input Audio Format: Bitstream - this is greyed out on my TV and unable to change

Sorry for the swedish in the minus but you see the greyed out

G

GuitarSuperstar

Lead Maestro

The HDMI Input Audio Format setting only applies to external media devices. Since you are only using the TV’s native apps, you can ignore this setting.

When you start a movie on Prime Video, do you see any ads or does the movie start immediately?

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