Contributor I

LGc9+Sonos Arc

23 replies
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After not being able to solve the massive sound delay between ps4->lgc9->playbase and the new ps5 not having a optical out to bypass the problem i have one question:

Will ps5->C9->sonos arc via earc have zero sound dealy when playing dolby 5.1/atmos?

I am willing to pay 800€ again for a system outdated today but i only use it fo gaming so thats crucial for me

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Ken_Griffiths

Thanks for the response. Just to test it out I unplugged the Arc and tried the built in speaker on the CX and oddly it was the same and had sync issues with the picture. I’m not sure what’s going on there. So I don’t think there is an issue with the eARC but I swear the audio and picture aren’t in perfect sync when people talk (although sound effects seem to be fine). Maybe I’m just losing my mind.

Try turning the LG lip-sync feature and eARC option ‘off’ then ‘on’ again and see if that corrects it for you.

Also check the Arc Room in ‘Settings/System’ and check/reset the ‘TV Dialog Sync’ and the ‘Group Audio Delay’ features for the Arc.

Hope that resolves the matter for you.

Ken_Griffiths

Thanks for the response. Just to test it out I unplugged the Arc and tried the built in speaker on the CX and oddly it was the same and had sync issues with the picture. I’m not sure what’s going on there. So I don’t think there is an issue with the eARC but I swear the audio and picture aren’t in perfect sync when people talk (although sound effects seem to be fine). Maybe I’m just losing my mind.

I would also try powering off fully (not standby) both the TV and Arc for 1 minute and see if that clears the problem.

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starlan

Enthusiast I

Thanks for the response. Just to test it out I unplugged the Arc and tried the built in speaker on the CX and oddly it was the same and had sync issues with the picture. I’m not sure what’s going on there. So I don’t think there is an issue with the eARC but I swear the audio and picture aren’t in perfect sync when people talk (although sound effects seem to be fine). Maybe I’m just losing my mind.

I would also try powering off fully (not standby) both the TV and Arc for 1 minute and see if that clears the problem.

Yea I’ll give that a try. Maybe I’m just sensitive to it because my wife can’t seem to tell any issues with the audio.

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starlan

Enthusiast I

Unplugging both devices for a few minutes and resetting the settings seems to have done the trick. Thanks for the tips. All looks good to me now.

artem

Collaborator I

After not being able to solve the massive sound delay between ps4->lgc9->playbase and the new ps5 not having a optical out to bypass the problem i have one question:

Will ps5->C9->sonos arc via earc have zero sound dealy when playing dolby 5.1/atmos?

I am willing to pay 800€ again for a system outdated today but i only use it fo gaming so thats crucial for me

Hi. I have an LG B9 + Sonos Arc + 2 One SL with a PlayStation 4 Pro and no sound problems, except that in many games I can't turn on 5.1 sound, for some reason there is only 2.0 choice. for Example, The Last of Us 2 is only in stereo, and I can't hear speech very well in the game — and I have to play with headphones. What could be the problem? Maybe it's because some games with DTS?

Sonos Arc / Sonos One XL x 2 / Sub gen 3 / Sonos Play 5 gen 2 x2 / Sonos Five x2/ Sonos Connect Amp gen 2 + Monitor Audio CP-CT380IDC x4 / Sonos Boost / LG B9 65" Oled / PS5

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starlan

Enthusiast I

You need to set sound out on your PS4 to bitstream (Dolby). Last of Us 2 is in surround. Then you should be getting surround sound. Also make sure that the HDMI in on your B9 (under the sound settings on my CX) is set to bistream as well. You don’t need it for the PS4 but on your B9 also make sure to enable eARC and set digital audio out to Passthrough which will allow you to get full eARC benefits on future devices such as PS5.

artem

Collaborator I

You need to set sound out on your PS4 to bitstream (Dolby). Last of Us 2 is in surround. Then you should be getting surround sound. Also make sure that the HDMI in on your B9 (under the sound settings on my CX) is set to bistream as well. You don’t need it for the PS4 but on your B9 also make sure to enable eARC and set digital audio out to Passthrough which will allow you to get full eARC benefits on future devices such as PS5.

Thanks. I have exactly these settings on my TV and PS4 . I think the whole problem is the localization of games in my country. But some of them work with localization in 5.1. I'll Try with other games that don't have localization.

Sonos Arc / Sonos One XL x 2 / Sub gen 3 / Sonos Play 5 gen 2 x2 / Sonos Five x2/ Sonos Connect Amp gen 2 + Monitor Audio CP-CT380IDC x4 / Sonos Boost / LG B9 65" Oled / PS5

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Andrew_TX

Lyricist II

I tried every workaround imaginable.

I have the LG C9 (running firmware v04.80.03) but with the older PlayStation 3 (slim version) connected over HDMI and the Sonos Arc (connected to the eARC (port (HDMI-2) set to pass-through) and all A/V, including Dolby TrueHD, runs in perfect lip-sync here?

When the PS5 with eARC comes out, how will that connection work? The LG OLEDs and the Arc only have one eARC HDMI port each. Would you connect the PS5 to the TV via standard HDMI and then TV-Sonos Arc via the eARC port?

controlav

Lead Maestro

Would you connect the PS5 to the TV via standard HDMI and then TV-Sonos Arc via the eARC port?

Exactly - eARC always goes to the Sonos Arc (confusing naming right there). TVs usually only have one eARC port, because that is all they should ever need.

Author of the leading independent Sonos apps for Android, MacOS, iOS, Windows and Xbox.

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ComodoreAuthor

Contributor I

I ordered the Sonos arc yesterday. I hope everything works...

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