sync issue mp4

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Help...
Just updated Quicktime - issue with only audio encoding before fixed. However, now the audio is unsynced to the video - JUST a bit off. The video is singing people... and the lips are not synced to the video. It's perfectly synced in Edius.

ULTIMATELY I want to make a Vimeo file. The export settings I used now are the same used successfully tons of times before this issue with Quicktime.

Any suggestions? help!
S.

ADDED: when I upload to vimeo it's even worse... it looks like the video is slo-mo!

[GrassValley_PS]

What are you viewing to make you think it is out of sync?

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video of people singing - lips are not synced up in the mp4 but are perfect on the time line.

[GrassValley_SL]

Do you have any vst filters applied?

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This is essentially a music video with interviews interspersed thru the song. The singers sang at a studio, were videotaped and professionally audio recorded at the same time, and the master track produced is used as the under music for this video.

There is one master audio track with no filters on it on audio track 1 (mastered audio file from the music studio)
There are several interviews on different time lines that have panpot and graphic equalizer filters on them
THEN - there are ALL the singers on the time line with ambient audio still there but turned off (used for syncing singers to music, but no filters on them)

Think it could be the filters or the turned-off audio? The SINGERS are the ones who are off, the interviews look fine....

[GrassValley_SL]

This is essentially a music video with interviews interspersed thru the song. The singers sang at a studio, were videotaped and professionally audio recorded at the same time, and the master track produced is used as the under music for this video.

There is one master audio track with no filters on it on audio track 1 (mastered audio file from the music studio)
There are several interviews on different time lines that have panpot and graphic equalizer filters on them
THEN - there are ALL the singers on the time line with ambient audio still there but turned off (used for syncing singers to music, but no filters on them)

Think it could be the filters or the turned-off audio? The SINGERS are the ones who are off, the interviews look fine....

If they filters are EDIUS native then no they woon't case a delay. If they are third-party Vst plugs there are some that can introduce a delay.

Mp3 also are evil for sync.

[GrassValley_PS]

I was asking if you are viewing on an external monitor. If so, through what card and connection?

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oh duh. sorry... stressed out about this and not thinking clearly.
MP3... omg yes. That could be it - I'll make a WAV and see if it helps. shoot... I know this! again, stress.

I have 2 Samsung computer monitors and one TV used as a monitor/output for video. I see video output on one computer screen and the TV (and edit on all 3). Hubby built the computer (his job) and he's not here to ask, but the display adapters in the device manager say NVIDIA GeForce GTS 250 and Radeon RX 570 Series.

[PaulTV]

Is the sound from your output card being monitored by your "TV" as well or do you have a seperate amplifier?

Is your "TV" a flat panel or older glass tube model?

There's a rats nest of reasons why your sync may well appear off - flat panels have two delay characteristics - Response time, this is measured in terms of going from black to white and given in milli seconds - say 5ms or 10ms but then you have the "processing" time - the time it takes the signal, as it arrives via HDMI or Display port to be processed and appear on the screen - this figure is almost never given as the manufacturer assumes you will listen to the sound through the TV - which has the same delay applied - these figures are typically 50ms or more - thats at least a couple of frames - so if you have an external amplifier dealing with your sound, you need one with a delay set up facility to get the monitored sync spot on. By the way "digital" amplifiers fed with HDMI also have digital to analogue convertors in the signal path which also adds sound delay to the system.

Older tube tv's have no inherrent video delay so adding a seperate analogue audio amplifier never poses a problem.

You are best to begin with an output card such as a BlackMagic mini monitor and go forward from there.

Also your mp3 is for sure an issue too!

Paul :-)

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Thanks Paul! Great info.
I have been having issues with making this particular video sync specifically, others look fine even with my TV. The footage was shot 2+ yrs ago by someone else. Not sure with what so that was also making me think it was the footage possibly. And TY for monitor info too.
I'm going to try the WAV file, and see what happens too. (Client edit next week).
THANK SO MUCH!