Sound delay with Arc when TV is turned on

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I have just replaced a Playbar with Arc. The Playbar was connected via the optical cable, and the new Arc is via ARC from TV. Previously the sound would come from instantly from Playbar as soon as picture appeared on TV. When I turn the TV on, there seems to be a 5 second delay after the picture first appears before green light flashes on the Arc and sound is heard from Arc, ie there is no sound for 5 seconds after TV Picture is visible when turning TV on.

I was wondering if this is normal for ARC connected devices vs Optical? Is there any adjustments on the Arc that can be done to improve the 5 second delay?

Sonos Arc

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timdu

Contributor I

I have the very same issue with my LG OLED55E7N tv.

When the Sonos ARC is connected via HDMI I have got the delay, when connected using optical I don’t.

I switched HDMI cables (the one that was included by Sonos with a premium AudioQuest Forest) without any succes.

I tried changing different settings on the tv without any succes.

I contacted Sonos but they couldn’t detect any issue in the diagnostics. Also they weren’t at all aware of people having this isse, so threated me as a complete isolated case

I contacted LG about the issue but they simply told it was due to a compatibility issue they couldn’t help me with (in general if it’s not LG equipment we can’t assist).

So, I guess I will have to live with it? It’s not that the Sonos ARC doesn’t work, but as an upgrade to my previous system (Bose Lifestyle 135 which lacked support for different things and which didn’t have this issue) I’d rather didn’t have this issue of course.

I keep on following this hoping some sort of solution would come up...

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Scoobydoofus

Contributor III

Just wanted to say I’m having the same problem, using a Sonos Beam, upgraded my TV to one which has ARC, and now I get a short period with no audio when I turn the TV on or if there’s been no audio for a few mins (eg I’ve paused something, or left Netflix on a menu for a few minutes). This didn’t seem to happen with my old TV which was connected via the optical adapter.

I don’t mind it so much when I first turn the TV on, but when I’m partway through watching something, it’s annoying.

If it’s something to do with standby/low power mode when no signal is received for a few minutes, can I change that timeout or disable standby as a workaround? Or should I just go back to the optical adapter?

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wilwong829

Enthusiast II

Just wanted to say I’m having the same problem, using a Sonos Beam, upgraded my TV to one which has ARC, and now I get a short period with no audio when I turn the TV on or if there’s been no audio for a few mins (eg I’ve paused something, or left Netflix on a menu for a few minutes). This didn’t seem to happen with my old TV which was connected via the optical adapter.

I don’t mind it so much when I first turn the TV on, but when I’m partway through watching something, it’s annoying.

If it’s something to do with standby/low power mode when no signal is received for a few minutes, can I change that timeout or disable standby as a workaround? Or should I just go back to the optical adapter?

You won’t get Dolby Atmos from optical so it make no sense to do so just because of this...

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oriboaz

Prodigy I

With my Sony TV, about 2 seconds after the TV is turned on, the picture will flash black for one second, after which the Arc starts to work (and the TV says that the audio system is connected). Overall, it’s a five second delay. It’s a little annoying. I suspect it’s related to EDID handshakes between the TV and Arc.

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