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LG C9 and Sonos Arc

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Hey all, my Arc was delivered this morning and I've had a chance to hook it up to my LG C9 directly via eARC and ran a few tests regarding Atmos and other features.

Built in apps:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU)
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.

Xbox One:

HDMI Audio set to Bitstream out and Bistream Format set to Dolby Atmos has no delay, finally! Displays Dolby Atmos in Sonos app.

PS4:

Like with the Xbox, there's no delay on Bitstream HDMI audio

NVidia Shield Pro:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU). After connecting up to a US VPN it's reporting Dolby Atmos (DD+) for Atmos content.
PLEX - This is where it gets slightly annoying. Playing TrueHD content it reports Stereo 2.0. Setting Passthrough to HDMI reports Dolby Atmos (TrueHD). For DTS content you need to switch the Passthrough setting to Optical which in turn causes TrueHD to playback in Dolby Digital Plus 5.1.

Apple TV:

iTunes Content - Reports Dolby Atmos for Atmos content. Non Atmos content reports Stereo 2.0. With Change Format > On and New Format > Dolby Digital 5.1, I receive Dolby Digital 5.1 from non-Atmos iTunes content. I ran this test using Beetlejuice and Avengers Assemble.
Netflix - Reports Dolby Atmos for Atmos content.
Amazon Prime - Reports Dolby Atmos for Atmos content.
Disney+ - Reporting Stereo 2.0 for all content bizarrely. Setting audio output on the Apple TV to Dolby 5.1 allows all content to playback in 5.1 rather than stereo.

My C9 is running firmware 04.80.03 with the following settings:

Sound Out

HDMI ARC selected

Digital Sound Out set to Passthrough

eARC set to ON

Additional Settings

DTV Audio Setting set to Auto

HDMI Input Audio Format set to Bitstream.

If there's anything else I can test or any questions, let me know!

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OmegaATX

Lyricist II

This is hugely disappointing. I have the same problem.

The good news is you can drive DD 5.1 by setting the setting manually on the Apple TV. It just sucks that the best TV on the market with one of the best soundbars with the best streaming set top box can’t move between Atmos, 5.1, and 2.0 gracefully.

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Santi31415

Contributor I

Hey all, my Arc was delivered this morning and I've had a chance to hook it up to my LG C9 directly via eARC and ran a few tests regarding Atmos and other features.

Built in apps:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU)
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.

Xbox One:

HDMI Audio set to Bitstream out and Bistream Format set to Dolby Atmos has no delay, finally! Displays Dolby Atmos in Sonos app.

PS4:

Like with the Xbox, there's no delay on Bitstream HDMI audio

NVidia Shield Pro:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU). After connecting up to a US VPN it's reporting Dolby Atmos (DD+) for Atmos content.
PLEX - This is where it gets slightly annoying. Playing TrueHD content it reports Stereo 2.0. Setting Passthrough to HDMI reports Dolby Atmos (TrueHD). For DTS content you need to switch the Passthrough setting to Optical which in turn causes TrueHD to playback in Dolby Digital Plus 5.1.

Apple TV:

iTunes Content - Reports Dolby Atmos for Atmos content. Non Atmos content reports Stereo 2.0. With Change Format > On and New Format > Dolby Digital 5.1, I receive Dolby Digital 5.1 from non-Atmos iTunes content. I ran this test using Beetlejuice and Avengers Assemble.
Netflix - Reports Dolby Atmos for Atmos content.
Amazon Prime - Reports Dolby Atmos for Atmos content.
Disney+ - Reporting Stereo 2.0 for all content bizarrely. Setting audio output on the Apple TV to Dolby 5.1 allows all content to playback in 5.1 rather than stereo.

My C9 is running firmware 04.80.03 with the following settings:

Sound Out

HDMI ARC selected

Digital Sound Out set to Passthrough

eARC set to ON

Additional Settings

DTV Audio Setting set to Auto

HDMI Input Audio Format set to Bitstream.

If there's anything else I can test or any questions, let me know!

Hi, thanks for the above. One question, have you tried it with Sky Q? If so, any audio delays?
thank you.

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SlvrYeti

Contributor I

I have the 65” C9 also. Are there any lipsync issues with the Arc? I never had any with the beam but can see a lot of people get lipsync issues.

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Japester

Lyricist II

I have the 65” C9 also. Are there any lipsync issues with the Arc? I never had any with the beam but can see a lot of people get lipsync issues.

Hi,

I’m running an arc with a 65’ C9 with zero lip sync issues.

Bluray/PS4 fine, built in apps (Netflix, Disney+, YouTube, prime) all fine and sky Q fine.

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SlvrYeti

Contributor I

I have the 65” C9 also. Are there any lipsync issues with the Arc? I never had any with the beam but can see a lot of people get lipsync issues.

Hi,

I’m running an arc with a 65’ C9 with zero lip sync issues.

Bluray/PS4 fine, built in apps (Netflix, Disney+, YouTube, prime) all fine and sky Q fine.

Thank you :) I've just gone out and bought one. Couldn't resist!

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Mike010101

Contributor I

Hey all, my Arc was delivered this morning and I've had a chance to hook it up to my LG C9 directly via eARC and ran a few tests regarding Atmos and other features.

Built in apps:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU)
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.

Xbox One:

HDMI Audio set to Bitstream out and Bistream Format set to Dolby Atmos has no delay, finally! Displays Dolby Atmos in Sonos app.

PS4:

Like with the Xbox, there's no delay on Bitstream HDMI audio

NVidia Shield Pro:

Netflix - Reporting Dolby Atmos (DD+) for Atmos content.
Amazon Prime - Reporting Dolby Atmos (DD+) for Atmos content.
Disney+ - Reporting Dolby Digital Plus 5.1 (though this is likely due to the current throttling taking place in the EU). After connecting up to a US VPN it's reporting Dolby Atmos (DD+) for Atmos content.
PLEX - This is where it gets slightly annoying. Playing TrueHD content it reports Stereo 2.0. Setting Passthrough to HDMI reports Dolby Atmos (TrueHD). For DTS content you need to switch the Passthrough setting to Optical which in turn causes TrueHD to playback in Dolby Digital Plus 5.1.

Apple TV:

iTunes Content - Reports Dolby Atmos for Atmos content. Non Atmos content reports Stereo 2.0. With Change Format > On and New Format > Dolby Digital 5.1, I receive Dolby Digital 5.1 from non-Atmos iTunes content. I ran this test using Beetlejuice and Avengers Assemble.
Netflix - Reports Dolby Atmos for Atmos content.
Amazon Prime - Reports Dolby Atmos for Atmos content.
Disney+ - Reporting Stereo 2.0 for all content bizarrely. Setting audio output on the Apple TV to Dolby 5.1 allows all content to playback in 5.1 rather than stereo.

My C9 is running firmware 04.80.03 with the following settings:

Sound Out

HDMI ARC selected

Digital Sound Out set to Passthrough

eARC set to ON

Additional Settings

DTV Audio Setting set to Auto

HDMI Input Audio Format set to Bitstream.

If there's anything else I can test or any questions, let me know!

Where is the 'DTV Audio Setting set to auto'?

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Ken_Griffiths

Mike010101,

DTV Audio is located at “Settings/Sound/Additional Settings"

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Danindub

Trending Lyricist III

Mike010101,

DTV Audio is located at “Settings/Sound/Additional Settings"

That’s for Digital TV channels. As in your satellite channels, not your HDMI inputs.

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Mike010101

Contributor I

Mike010101,

DTV Audio is located at “Settings/Sound/Additional Settings"

That’s for Digital TV channels. As in your satellite channels, not your HDMI inputs.

Ok, I don't have satellite, so maybe that's why I don't see it there. My set top box is connected to my tv via hdmi

Thank you both

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Ken_Griffiths

Mike010101,

DTV Audio is located at “Settings/Sound/Additional Settings"

That’s for Digital TV channels. As in your satellite channels, not your HDMI inputs.

I was just answering the question and pointing out where the TV setting is located on the C9. I don’t have satellite either and there’s only digital TV channels here in the U.K. There’s no analog channels? Anyhow this is the info displayed, concerning the ‘audio output’ if that helps at all.

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