Fios One audio sync issue

I’ve seen this problem as “solved” by others but the solution has been give up. Hoping for some real solutions. I have fios one cable box, Samsung qled, and Samsung soundbar. All 2019. No matter what I’ve tried, the fios audio is out of sync where the lips move before sound - so not something that can be fixed with the sync delay. The opposite of it. The only solution I have seen is set the output to PCM which basically negates the soundbar and any Hope of Dolby. I’ve tried everything listed on other chats: connected fios to soundbar directly, changed all the fios settings in menu and in the diagnostic menu (pass through, etc) and nothing corrects it. When I wire the soundbar to fios then soundbar to tv via ARC, it still defaults to pcm and can’t change out. This seems like an issue with fios? Any help is welcomed. I’m trapped with Verizon for now but when I move I’m thinking I need to stitch to xfinity because I have not heard of these problems.

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clem21

@Barkmanton wrote:
Thank you for the input. I have tried these things to no avail. I currently have fios to tv via HDMI and tv to soundbar via HDMI ARC. I’ve tried fios direct to soundbar and via optical. No change. Also tried game mode and adjusting/turning off all auto settings. TV up to date with software updates. Streaming of Netflix, prime, etc. All totally fine. Only fios causing the problem. Nothing seems to change it unless I put it on PCM. In an era where virtually everyone has a smart TV and sound system, it’s frustrating that this issue is not fixed.

What is happening is the TV is taking much longer to process the audio than the video. Apparently when it sees a PCM audio signal, it syncs with it properly. The streaming apps work correctly because they are built into the TV and don't require any processing like the external devices do. Did you try the optical out of the Fios box to the soundbar? Or the optical out of the TV to the soundbar? HDMI ARC has been known to create sync issues in the past. You can get into the service menu on the Fios One by turning the power off at the switch on top of the box, then quickly pressing OK 2X on the remote. You'll see a big b&w menu, press the left arrow key in the middle of the remote. Then choose USER menu, go to additional HDMI settings, audio sync and choose manual. Set the value to 0, press OK. Power off and then back on. See if that helps.

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clem21

@Barkmanton wrote:
I’ve seen this problem as “solved” by others but the solution has been give up. Hoping for some real solutions. I have fios one cable box, Samsung qled, and Samsung soundbar. All 2019. No matter what I’ve tried, the fios audio is out of sync where the lips move before sound - so not something that can be fixed with the sync delay. The opposite of it. The only solution I have seen is set the output to PCM which basically negates the soundbar and any Hope of Dolby. I’ve tried everything listed on other chats: connected fios to soundbar directly, changed all the fios settings in menu and in the diagnostic menu (pass through, etc) and nothing corrects it. When I wire the soundbar to fios then soundbar to tv via ARC, it still defaults to pcm and can’t change out. This seems like an issue with fios? Any help is welcomed. I’m trapped with Verizon for now but when I move I’m thinking I need to stitch to xfinity because I have not heard of these problems.

Your problem, audio behind video, is a rare case. You are correct that audio delay is the opposite of what you need. Sounds like there is too much video processing going on with your TV to keep it in sync with the audio. Try changing the TV mode to Game mode, or cutting back as many of the "AUTO" enhancements you can in the TV . Also there is occasionally a delay with some TVs when they process audio out of their optical outs. Have you tried Fios direct to the TV then HDMI ARC out of the TV to the soundbar? Does the TV-soundbar combo do the same thing if fed by a DVD or Bluray player? Also I seem to recall a Firmware update by Samsung that fixed this issue. Check you have the latest Samsung firmware.

Barkmanton

Thank you for the input. I have tried these things to no avail. I currently have fios to tv via HDMI and tv to soundbar via HDMI ARC. I’ve tried fios direct to soundbar and via optical. No change. Also tried game mode and adjusting/turning off all auto settings. TV up to date with software updates. Streaming of Netflix, prime, etc. All totally fine. Only fios causing the problem. Nothing seems to change it unless I put it on PCM. In an era where virtually everyone has a smart TV and sound system, it’s frustrating that this issue is not fixed.

clem21

@Barkmanton wrote:
Thank you for the input. I have tried these things to no avail. I currently have fios to tv via HDMI and tv to soundbar via HDMI ARC. I’ve tried fios direct to soundbar and via optical. No change. Also tried game mode and adjusting/turning off all auto settings. TV up to date with software updates. Streaming of Netflix, prime, etc. All totally fine. Only fios causing the problem. Nothing seems to change it unless I put it on PCM. In an era where virtually everyone has a smart TV and sound system, it’s frustrating that this issue is not fixed.

Hornetman1

I am beyond frustration with Verizon FIOS. Was told that getting new STB would fix my issue. WRONG, I have tried what has been recommended and still the sync will be fine starting out but will slowly fade out, happens only while watching TV, happens with or without the sound bar connected. I have no issue when watching NETFLIX but appears to only happen on the STB, my mini’s that I just hooked up do not appear to have the same problem. I think Verizon should be slashing their monthly charges drastically until they can fix this issue. From what I can tell this has been going on for over 3 years. I recently replaced my TV and bought a sound bar and **bleep** that this is what I have to deal with!

aviat4431

I have a Samsung Q90T. Just upgraded to the Fios One box. Experienced the same thing with the audio lagging slightly behind the video. Changing the FIOS audio sync to MANUAL definitely fixed this. Keep the delay at zero. Thanks for this.

UPDATE:

It worked at first. Or at least I thought it did. It seems to have gone back. And some channels are worse than others. It's remarkably apparent in commercials. This **bleep**.

I am using optical out to my JBL 5.1 Soundbar. Perhaps I need to go back to HDMI ARC.

lpatitucci80@gmail.com

Thank you clem53! You are awesome!!!! This seems to have resolved the issue so far. Fingers crossed it stays that way but great so far. My issue was each time I changed channel, things would sync back, but after time elapsed, the sync issue was noticeable. Like for example, I watched joker on HBO (the channel, not VOD) the other night. When Arthur finds out about his mom Penny and withheld info at the ward, I noticed the out of sync slightly. I kept HBO on all night, and by morning, the sync delay grew. But your advice helped tremendously. I’m two movies in on Cinemax now to see if issue persists and it’s fine. (Knock on wood) thank you, greatly!!!!

het100

I installed a Sonos Arc Soundbar with my Samsung Qled TV and experienced video ahead of audio lip sync issue with fios one ipc4100. No issues with internal apps like Netflix so it had to be caused by extra audio processing from the stb before getting to the soundbar. I accessed the hidden user settings as described by others, then to additional HDMI settings, and then set pass-through to on. This totally solved the problem.

Soundsilencer

The easiest way to solve this problem is to hold the power button down for three seconds when either turning the tv/set box on or off. Works for me.

Anoyinnerd

In the audio settings of your Samsung TV you can adjust the audio delay or latency

het100

Update: the problem did not remain solved. Lip sync continues to be a problem between the fios stb and the TV. TV Internal apps have no lip sync delay issue whatsoever. The only "fix" is to set the audio in the user settings to lpcm. My Sonos system now determines which sounds to send to my rear surround speakers when watching on fios. Not as immersive but worth the trade-off. I still get to hear great Atmos sound over earc when watching content on the apps like Netflix, etc. Verizon and Samsung need to figure out a real fix for why sending dolby digital from the stb creates this issue, but for now it's lpcm.

clem21

@het100 wrote:
Update: the problem did not remain solved. Lip sync continues to be a problem between the fios stb and the TV. TV Internal apps have no lip sync delay issue whatsoever. The only "fix" is to set the audio in the user settings to lpcm. My Sonos system now determines which sounds to send to my rear surround speakers when watching on fios. Not as immersive but worth the trade-off. I still get to hear great Atmos sound over earc when watching content on the apps like Netflix, etc. Verizon and Samsung need to figure out a real fix for why sending dolby digital from the stb creates this issue, but for now it's lpcm.

Checked into this and found you have to set passthrough in BOTH the service menu of the box and the user menu or it won't stay after a reboot. I'd also see if there is a firmware update for the Samsung as several people on other forums posted audio delay issues with Samsung TVs and external devices.

het100

Thanks for your response. Despite setting passthrough on both menus it nevertheless reverts back to default. Even when set to pass through, the video stays slightly ahead of audio, enough to be very annoying. I checked and I do have the latest Samsung TV firmware update. It doesn't seem like anyone with a Samsung QLED with this issue has been able to solve the problem. So far, setting audio format to Lpcm seems to be the only way to go until there is a firmware update that fixes the issue or allows for negative delay adjustment.

CoTuPop

I really think the problem is the Samsung Frame TV processing (that’s the tv I’m having the issues with). I have two other TVs in the house with Fios cable and the sync problem doesn’t happen. I don’t think this is a Fios issue.

[Deleted User]

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