Slight out of sync audio on export

When I export a sequence with the setting: "Match Sequence Settings" - Everything plays/sounds fine.
But when I use any other codec (H.264, etc) to export, the audio is always slightly delayed. It's not much, but you can definitely tell.
Is there something I'm not doing right? I can't believe that this is just an inherent issue with Encoder's compression.
By the way, I've tried variable/constant bitrate, changing the audio precedence, sample rate. Nothing makes a difference. Anytime I compress, the audio is delayed.
Has anyone else had this problem?

Hi - I'm still having some sync issues.
1) No, I am pairing independent audio and video sources. Specifically, I'm taking interview audio and syncing it using Pluraleyes.
2) No effects
3) No, it seems to be okay with very short (10 seconds) clips.
4) No, I haven't tried that. (would that be in Media Encoder Preferences?)
5) Windows media, VLC
6) The sync issue did not seem to get worse as the video played on
7) I will send you a direct link (video hasn't been "released" yet)
I will also say, when I took the H.264 export and placed it back into my Premiere timeline, the audio was 1 or 2 frames off. Again, not incredibly noticeable, but once I shifted it forward in time, the audio and video lined up great.
Thanks again for the help.

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Final Export of a Project Slightly Out Of Sync

Hi there,
I'm trying to find an answer to what seems to be a common issue when exporting projects out of Final Cut Pro X, however I haven't yet found any answers that work or that tell me things I don't already know (don't mean to sound know-it-all though).
The issue is that after I have exported my project, the audio and video are out of sync. It doesn't drift as the video goes on; it's out of sync by the same amount from start to end. Of course, when editing and viewing the project in Final Cut, the sync is fine.
The project was created from scratch with the Apple ProRes 422 setting, the two original camera angles were both 25p, the audio I'm using is 48K/24bit which the project is setup as also. The audio was originally recorded at 48k/24bit and mixed seperately in Pro Tools and was exported as a wave file (48K/24bit) and brought back into Final Cut.
I can't think of what else to describe. All the project settings and the original footage and audio setting are exactly matched. There's no frame rate changes, no audio resolution changes, no MP3 in the mix, no apparent issue when viewing/editiing in the project, and I even tried optimising the video and exporting just to see if that made any difference.
I usually listen to the audio via an RME souncard which is setup to be low latency. However, whether I view the project and then export via the external audio interface, or view the project and export via the laptop speakers (with not extrernal audio interface connected) it's the same result: slightly out of sync video!
If anyone has any ideas I would be most grateful.
Cheers,
Chris

Hey Russ,
Thanks for your time. When I say a 'common issue' I found that when I searched it both on Google as well as this support forum I found multiple threads and questions pertaining to this issue of sync and/or drift.
I tested this single angle idea by using the footage in a nother project and exporting part of that (without changing angles) and it seemed to be OK. However I have other projects which are only single angle but they export slightly out of sync as well. I haven't found a common denominator yet.
When I say out of sync, it's not dramatic, however it's always the same - the audio is just a few frames behind the video. This has happened with most of my projects using different footage and different audio, etc. No matter what setting audio and video are recorded at, and regardless of whether I dramaticallty colourise or add effects to the video or not, it's always the same result; slightly behind audio when exported.
With regard to presets, do you meet export settings? If so, I'm mostly exporting using H.264 and as a Quicktime Move (AAC) output. I've tried various resolution changes and tinkering but nothing has changed.
If you're referring to project setup presets, I can't really change too many things because obviously the audio resolution and video frame rates are predetermined so I can't try 25p footage in a 30p project, etc.
Thanks again,
Chris

Music slightly out of sync when exporting in Premiere CS6, format problem?

Hi guys, i have a quick question.
I edited together a promo for a local band and everything is perfect in the sequence as far as being on point with the music at certain beats and such. However when I export it the music is slightly out of sync, which is bad when you edited everything specificly to the song. I am not using ANY audio from the footage but instead layed a music track over everything. I'm not sure what else to do, could it be a format problem? I am using h.264 (see below), but would AVI or anything else work better? any help is appreciated thank you!
I am exporting directly from inside Premiere CS6 using a custom H.264 preset. 24fps, VBR 2 pass encoding. Target 7MB, Max 11MB. (with render at maxium bit depth, and render at highest quaility selected.)
I put the audio settings to high, 320kbs AAC format.
I use a custom built PC with an i7-3770K, 32 GB RAM, and I exported to a 120GB SSD.
Any other info you need just ask.any types for uploading to vimeo so it doesn't get out of sync there? thank you in advance!
Also, any types for uploading to vimeo so it doesn't get out of sync there? thank you in advance!

Hi,
I dont think that you will really get a problem while exporting in any of the given formats. But i would really like to check if the audio layer is exactly same as of the video. for eg - if my audio is 00:05:30 and my video is 00:05:20 , we might face issue with the sync.
We can try to put more black video to make it a match with the audio and then try to export.
Where do you have the media files , on a internal drive like c: or desktop? In case not , try to move the media files to desktop and then try to export.
Also instead of exporting the files to your 120GB SSD , try to export it on the desktop.
Hope it helps.
Thanks

DVD audio slightly out of sync

Whenever I watch a movie on the DVD player on my macbook, the audio seems slightly out of sync. This happens with any movie I play so I know it isn't the DVD that is the issue. It is like the audio of a characters voice plays a fraction of a second after it should. Has anyone else experienced this or am I just crazy? Is there a quick fix for this problem?

First of all, when you export, you should see the dialog box that has information about the source video as well as the export. If you are shooting 25fps then you are not in the USA. If you are in the USA, look harder at your export settings.
But that isn't the problem you are facing.
Are you using the Vimeo app to play the videos on the iPad or are you just playing it in a browser? Use the app if you aren't now doing so.
I doubt that you are using anything other than AAC for your audio from what you have said about using the presets, but I have to ask. You are using AAC, right? That is what Vimeo prefers.
Have you tried turning the HD off in Vimeo to see if that clears up the problem? That will probably be fine on a smartphone. An iPad might see the difference though.
You are not going to be happy reading this Vimeo.com thread, but here it is anyway.
I don't even know what to make of this one.
In any case, you will read for yourself that you may want to change browsers on the mobile device.

AppleTV streaming has out of sync audio - anyone else having same issue?

Ive noticed since last updates to appletv and itunes that any mp4 file imported to itunes have very slight out of sync issues, enouth to be very annoying.... is it just me? i stream wirelessly usinga mac book pro and the latest appletv.

I've had this issue too. I found that if you hold down the select button (the big one in the middle) on the remote, you'll get a menu at the top of which is an "audio" button. If you navigate to it and select it, you'll probably see that "english surround" is selected. go down to just "english" and select that. This should take care of the problem, it does for me!
Hope this helps!!
Eric

Out of sync audio six channels

Dear All,
I have not had a problem with this before, but suddenly I have out-of-sync audio when mixing six channels in FCP. Using my Canon XL1-S, I recorded 4 channels of audio in 12 bit mode, 32 khz. I then added another two channels of audio from a separate Sony digital recorder into the FCP edit. First I set the sequence settings to 32khz and ran everything in 32 bit mode, converting all of the audio through Quicktime pro. The 4 channels from the Canon XL1-s are in perfect sync, but the two channels from the Sony digital are playing at a faster speed and are drifting as the movie progresses...the length is 1:25:00. I then went back and converted everything to 48khz and changed the Sequence settings accordingly, but the Sony audio is still drifting and playing more slowly than the other two channels. What am I doing wrong and how can I bring all of the audio together? Thanks. I'm working with FCP 6.0.6 on a Mac Pro with Snow Leopard 10.6.6. Barbara Smits

Hi -
Barbara Smits wrote:
I have not had a problem with this before,
meaning you have done this exact procedure successfully before?
but suddenly I have out-of-sync audio when mixing six channels in FCP. Using my Canon XL1-S, I recorded 4 channels of audio in 12 bit mode, 32 khz. I then added another two channels of audio from a separate Sony digital recorder into the FCP edit.
What is the format of these Sony files?
. . . the Sony audio is still drifting and playing more slowly than the other two channels.
Unless you are timecode locked between devices, it seems reasonable to me that there will be sync drift if the Sony external recorder is not locked to the video signal.
You might try selecting the Sony audio clips on the timeline and adjusting the speed slightly, such as 101% and see if that gets you closer to sync.
Hope this helps
MtD

AirTunes to Apple TV is slightly out of sync with other AirTunes devices

I've noticed that AirTunes playback through Apple TV is slightly out of sync with the audio output from my Macbook and the AirTunes via my two Airport Express Base Stations. The audio from Apple TV is about a second delayed, causing a mismatch between AirTunes playback on the TV and my Macbook and other AirTunes devices. Thus, my Macbook and AEBSs are in harmony, but Apple TV's AirTunes is about a half-a-beat delayed.
Has anyone else noticed this problem or know of a way to remedy it?

This is quite intriguing. I would expect that an amplifier would be able to decode the digital signal with no noticeable delay, otherwise DVDs etc would play with audio out of sync when using the digital output of the player. In fact, rather the opposite is true with new larger screens where it is the video that's slow and the audio needs to be delayed.
So this would point to the Apple TV's digital output being delayed vs. it's analogue output and I'm not too sure I understand why. It receives digital information over the network and then takes longer converting that to SPDIF (its digital output format) than it does converting it to analogue. Odd.
Perhaps an expert can advise us on this.
This would however explain why the Airport Express can exhibit the same problem and why some people don't experience any delay - they are probably using the analogue output of their Apple device.
What we need in iTunes when selecting devices to play from is an additional control for each with a +- setting that can adjust the delay of each output device so they can all be brought in sync. Since the delay appears to remain consistent that ought to solve the problem for everyone once and for all.
I'll try some tests of my own and see if my problem is indeed this digital delay.

How do I fix out of sync audio and video on my ipad2?

How do I fix out of sync audio and video on my ipad2? The version is iOS 7.1.2

In what app?
Have you restarted or reset the device?

Dropped frames or out-of-sync audio

Using Sony HDR-FX1 and FCE-HD is set to DV-NTSC. I've also tried DV-NTSC Firewire Basic. I've been trying various suggestions I've found in the Discussions to cure dropped frames that prevent me from capturing and out-of-sync audio making footage I do capture useless. Mac is running 10.4 with 5.5 GB of RAM and dual 2 GHz G5.
I'm capturing to my main hard drive which has plenty of space - when I'm done editing, I archive old footage on an external drive.
"Abort capture on dropped frames" is currently checked. Lately, this means I can't get more than a few seconds without the capture stopping. This never used to happen, now it happens all the time no matter what tapes I'm capturing from.
If I uncheck it, the audio on the captured footage is out of sync. Over time, as I've been trying to trouble shoot this using the Discussions, my projects remain unfinished and deadlines are looming sooner and sooner.
If someonce could please help me I'd be very grateful.

Hi(Bonjour)!
Did you shoot in DV or HDV ?
Did you try to capture HDV with Apple Intermediate Codec 1080i60 (or 50 for europe)?
Does you downconvert HDV shooted to DV upon capturing from camcorder ?
DV-NTSC 48 kHz is the way to go with downconverted material.
Does your DV audio setting is 16 bit on FX1 ? (HDV is a fixed one).
Michel Boissonneault

HELP .... HD FILES OUT OF SYNC AUDIO&VIDEO

Hi, everybody. This is my problema.
I Have some files in HD, this files plays without problem in Quicktime,
but in FCP are out of sync audio and video. I have this problem only with a HD Files. About a week this worked fine in FCP, but i charged FINAL CUT STUDIO and the problem apears.
PLEASE HELP ME.

Ok thank you SHANE for your answers.
I didnt explain the situation complete, sorry.
This is the story:
Im a new in a MAC WORLD'S and of course in a FCP too.
I never edited in HD (HDV1080i SONY HDR-FX1)
But i have to work ...
I HAVE a G5 QUAD CORE 2.5 512 MB RAM
and i buyed final cut studio 5
I installed the FCP Version 5.1 and i dont have any problem with captures HD FILES, editing or playing in FCP version 5.1 ** BUT*
I updated FCP 5.1 to 5.1.2 and the problems appaers
only in HD 1080i FILES the audio is out of sync video in a VIEWER and CANVAS
Some people says me that problem is RAM problem (may be i ahve 512MB)
But i think
1. May be is a configuration problem OR
2. Software problema
I hope be explicit.
Please help me.
SORRY for MY English.
Gabriel

Audio/video out of sync (audio delay) with PowerBeats wireless earphones.

I am having a problem with audio/video sync between my PowerBeats Wireless earphones with my MacPro and MacBookPro. I have tried pairing, playing the video, pausing the video, turning off the PowerBeats, tuning the PowerBeats on, then starting the video playback again. I have the same audio delay so this not working for me. Anyone have an update as to how to fix this audio/video sync problem?

I am playing MPEG-4 movie files. I did open MPlayerX from my dock, then pulled down File to select Open which then did show the folder where these movie files are stored. Then I was able to select a movie file, open it, and use "Decrease Audio Delay" to closely sync the audio with the video. I say closely because it is not perfect. Rather than stepping each increase or decrease in one tenth of a second, perhaps a finer adjustment would have been in milliseconds. This is the adjustment that I have with my AVR to sync the audio with the video, so I know this is a possible increment adjustment. The perfect adjustment was in between -0.4 and -0.5 second,however, this was not possible in one tenth second adjustments. The closest adjustment was with -0.4 second rather than with -0.5 second. So, adjustments in milliseconds could have been very near a perfect sync. Perhaps later versions of MPlayer will offer the adjustment selection in milliseconds. Nevertheless, this is working much, much better than before. Thank you so much. I have spent most of this day researching this problem and you have come up with by far the best solution. This problem goes all the way back to 2010 and possibly beyond for Apple products. There are hundreds of reports documenting out of sync audio/video issues with no solution that works as well as MPlayerX. Even the Beats support staff have no idea of how to resolve the audio/video out of sync.

Out of sync audio markers

Why there are not out of sync audio warnings in final cut x?

Not sure this is the best place to ask questions about why 'features' are not in the application, but to give you a genral answer from the manual about what I assume you are pondering:
By default, Final Cut Pro imports audio and video from the same source into one clip. You can easily detach the audio from a video clip so that you can edit the audio clip separately in the Timeline.
This means that unless you detached the audio yourself, the clip is treated as one source. If you detach it, you are own your own.
If you are wanting to request a feature of some sort for Final Cut Pro X, try this Feedback Form.
Best of Luck!
-ShinerMac

How can i fix out of sync audio when watching any video online, such as Netflix or YouTube?

How can i fix out of sync audio when watching any video online, such as Netflix or YouTube?
This recently started to happen, never used to happen before...strange.
Help Please!!!

Cut up the 4n audio clip and synch it to its respective clips.

Quicktime Export causing Out of Sync Audio?

I'm trying to export a self contained Quicktime movie from my timeline, and every time I try, the audio ends up being out of sync. What am I doing wrong?
The audio is set to just the defaults, 16 bit, 48khz.
Sequence settings: HDV1080p30
When I bring the final exported movie back into FCP, it plays out of sync.
Exporting through the Share feature to bluRay resulted in perfect sync audio, so I'm at a loss as to why this isn't working.
Please help!

Allright, since nobody out there seems to have the answer - I'm going to share what I discovered so that the next person will actually get an answer without having to spend hours and hours finding it in other forums. Here goes:
Problem: Audio plays in sync on the timeline, an export from the timeline through Share to bluRay results in correctly synced audio; but a Quicktime Export with current settings results in a final movie where audio is out of sync with the video.
Solutions: I found two solutions to this problem:
1- When exporting to Quicktime Movie, check "recompress all frames". This solution had mixed reviews, with lots of people saying you should never do this, as it will reduce the quality of your final output; while others said the reduction in quality was not noticeable to the naked eye. I guess you can try it and be the judge.
2- In your sequence settings, change the compression setting to Apple Pro Res. This is the setting I decided to go with, as I'm currently awaiting the 10 hour render.
I did do a quick and dirty test on the ProRes option, where it appeared to work. Since the audio is correctly synced in the beginning of the video and then slowly falls out of sync (obviously the 30p to 29.97 problem), I had to run a test using my entire sequence. If you run a test on a 2 minute sequence, it will appear to be correct, because it is a slow falling out of sync issue - the problems occur later in your project (just fyi). Here is what I did (in case you want to try it on your project):
I created a new sequence and then changed the compression setting from HDV1080-30p to Apple Pro Res 422. I dragged my sequences into this sequence (so they were nested). I unlinked the audio and then selected about a 20 second area from about 3/4 of the way through the project. I sliced this section and then removed all the video before and after (so it would speed up render time and only render black, but I would still be able to see if the audio synced up later - I hope that makes sense - this made my export time only 12 minutes). After it exported, I reimported the movie, found the little 20 second area, and it was correctly synced. So, now I am exporting the whole thing. I sincerely hope this works. I don't have lots of 10 hour blocks just lyin' around!
Since my audio issue was most likely due to the fact that I captured and edited in 1080 30p, I believe it must be a bug in FCP that exports the Quicktime movie in 29.97 regardless of whatever your sequence settings are (believe me, I tried to change it to 1080-30p and it didn't work). That is why I think the Apple Pro Res option works, but it involves a total re-render of your project. This is also why I believe it plays fine in the timeline, because my timeline was set to 30p. Again, I also believe that is why my export to BluRay through Share resulted in correctly synced audio - the bluRay export I believe uses the Pro Res codec (which, by the way, took 19 hours).
Wish Apple would fix this bug.
Message was edited by: Chermeier1

Some audio out of sync in after Export

Can using the built in Audio tools like Loudness, or adjusting the sound levels in the waveform cause the audio to go out of sync?
I'd say not...but that is what seems to be happening.
I have a 2hr 30 projet for a DVD.
All individual clips captured on Canon 5d 3 at 48khz 25fps
Project is 48khz 25fp, as set automatically when the clips were first dropped on the timeline
One particular group of 3 clips, seems to randomly and suddenly loose sync in the middle, sometimes at the start, some times in the centre, then often it comes back at the end.
Of the whole 2 hr 30 project only this bit is giving issues, all other clips have been edited in the same way, and are similar lengths,some longer, some shorter, all stay in sync. Max clip length about 8 minutes
In the timeline the audio stays perfectly in sync
I have re made the sequence of three clips , totalling 24 minutes long, probably 6 times now. and each time after adjusting the audio levels the exported audio has variable sync,
Also re imported the footage and tried again
No added audio tracks, just a single compound clip containing three complete clips, with the ends trimmed
Audio has not bee detached from the video.
All I am doing is adjusting the audio levels,
Hum On
Noise reduction to about 2%
Loudness On :
Amount 20%
Uniformity 15%
First noticed this yesterday on a DVD burnt using "Send To Compressor" Create DVD
Also happens using the in built Share, to DVD, ot share To master File
Output settings are also 48khz and 25fps
If I do an export of the clip With no audio corrections, it is fine. But as son as I try and adjust the audio levels, it goes out of sync.
I'd half suspected I had somehow dragged the audio in the timeline, when adjusting the levels, but no. Go back and play the clip in the timeline and it is perfect. But Share that compound by dropping in to a New project, export as master and Playback in QT and the audio goes out of sync after I have done a levels correction. Un-corrected ( for level only ) audio stays in sync.
o master file that single co

How are you exporting? The first quicktime export option or quicktime conversion? What are your settings for the export?
Did you capture with device control with abort capture on dropped frames and create new clip on timecode break enabled?

Slight out of sync audio on export

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