Audio / video fall out of sync

I'm working on an interview project which needs better audio than my built-in camera mic provides.
So, I recorded my audio separately during the shoot using Logic. I bounced an AIFF (48KHz - to match the video), and I thought it would line up perfectly with my video file in Final Cut Express.
I lined up the beginning - perfect sync. However, several minutes into the clip, the audio and video start falling out of sync - more and more as it moves down the timeline.
Does anyone know a possible solution for this problem? I searched, but I think I'm asking the wrong questions.
Thanks!

Make sure the sequence settings match the media. If that's not the problem, it sometimes works to modify the speed of either the audio or video if you can figure out by what percentage they're out of sync.

Similar Messages

When I watch tv shows in Front Row that I've bought off iTunes the audio gradually falls out of sync with the video. It does not happen with other files that I have converted into mp4s. Any ideas for fixing this? It's a huge bummer...

When I watch tv shows in Front Row that I've bought off iTunes the audio gradually falls out of sync with the video. It does not happen with other files that I have converted into mp4s. Any ideas for fixing this? It's a huge bummer...

I too have the same problem. The audio drop out of sync in about 5 sec in not uncommon for the audio to be 30+ sec behind video. Apple needs to fix this!!!!!!!!!!!!!!!! its a joke, my iphone is all messed up after the last update as well. at one time not to long ago apple products and software were top rated, not so much any more, more and more problems are showing up and apple is unwilling or unalbe to fix the many issues. Apple needs to fix the audio sync problem, it not the computer hardware or other software it ITUNES!!!!, there is no workaround other then hitting pause and hitting pause and hitting pause to temp fix the problem.

ITunes audio/video drifts out-of-sync

I have for a while been having problems with watching videos I have downloaded from the iTunes Store on my PC. I'm running windows 7, all my drivers are up to date, and the videos play fine if I open them up in Quicktime. If I watch them in iTunes, however, the audio and video get out of sync rather rapidly... If I watch a show in iTunes, I need to pause and restart it every 30 seconds or so, otherwise it just becomes too annoying to watch. Clicking pause then play again syncs it back up, but again it doesn't last long. I open the files in Quicktime and they play just fine, and considering iTunes just uses Quicktime for video playback, the problem must be with iTunes. I have gone through several iTunes updates, hoping with each one that the problem gets fixed, but it never does... can anyone help me??

Also been experiencing this for some time now, win7 x64 and same sort of pc specs to all you guys, fixed it just this evening so hopefully it's not just a fluke!
Two things to do, first in quicktime preferences, audio tab, under the sound out field, rate change too 44.1khz, size to 16 bit and make sure channels matches you windows default. Now you need to make sure your audio driver software matches these settings (as that is the software that controls the sample rate and bit depth in shared mode); mine is realtek HD audio manager, so for anyone else who has that, go to the default format tab make sure it is '16bit, 44100hz (CD Quality)'.
I'm not a big expert on this so I can't say why itunes suddenly has a problem with these settings or why it makes a difference, I just hope that this fix works for you as well because I have been looking for a solution online forever and it's driven me insane!
Good luck!

Audio Video *still* out of Sync in iMovie '11 (9.0.3)

There are several similar threads about this issue, with the final solution being to upgrade to a later software version. I am using the current latest update of iMovie '11 and am having terrible issues with audio syncing.
All of the affected clips are direct-to-iMovie captures via iSight camera and either an external UBS mic (Snowball) or internal mic. The problem happens either way.
Clips range in length from 45 seconds to 15 minutes. Out of say, 20 clips, 15 will be affected, some will be perfectly fine. There is no consistency as to when the syncing drifts apart, but it gets worse over time. Many of the clips drift out around the beginning (between 10 sec and 2 min in) and back in sync 30 seconds or so before the end. When the clips resync it doesn't seem gradual... nothing seems to change, but all of a sudden they're perfectly matched again.
It seems to be consistent that the audio is ahead of the video, but the audio itself doesn't sound any faster (going by the pitch) and the video doesn't look slow.
This is definitely a problem in iMovie itself, NOT in the import. Every single clip is perfectly synced when I view the raw .mov file in Quicktime. Clips export to web perfect out of Quicktime, but are out of sync when exported to iMovie.
On that note, I had one clip that was initially out of sync all the way through change to being back in sync toward the end after restarting the app. (No other clips changed.) I also had one clip speed up to chipmunk speed after a minute and a half and pop back to normal after 2 minutes. I left iMovie open, didn't close or sleep the machine, just switched to Quicktime to edit there... when I switched back to iMovie that clip played back normally (but no other ones changed.)
- I've tried exporting the Quicktime into a brand new .mov file and reimporting into iMovie as new footage; still no dice.
I've tried detaching audio, this doesn't work. Syncing each clip by hand via cuts is nearly impossible, as there are hundreds of clips, most of them 2 minutes long, and the drifting is so bad that piecing one 45 second clip back together resulted in dozens of audo cuts and nudges, and it still looked bad. (This is an oral history project, so every video is a close-up shot of someone speaking.) I have been working around the bad clips by trimming in Quicktime, but a many of them need internal trimming and audio manipulation that Quicktime can't do... and it shouldn't need to do it, because I have iMovie. This is driving me insane! Is anyone else experiencing this? Any thoughts/ideas?

I too am facing the same issues and trying to look for good alternatives. Ugh.

Audio & video are out of sync (help!)

Please help, all of a sudden, my video and audio in my timeline and browser are out of sync. In the timeline, some audio clips match w/ their video, some don't. What's up with that? I've been editing this timeline for weeks, I had no problem until TONIGHT. In the same timeline or sequence, some clips are out of sync w/ their audio. Could it be something to do with dropped frames? I have this window that comes up now (whereas it didn't before) and in red, it reads:
RT Extreme has determed dropped were caused by slow disks. Please try:
-increasing the speed of your disk (huh?)
-decreasing the number of RT layers
-Limiting your RT bandwidth in User Preference.
I'm totally perflexed. Please help.
thank you
kchen

dear Jimmy,
I burned a tested DVD and the audio is fine. I guess the way I view was a bit misleading.
Thanks for your time...but i have another question. When playing my video back from the timeline, I still get this message in RED:
RT Extreme has determed dropped were caused by slow disks. Please try:
-increasing the speed of your disk (huh?)
-decreasing the number of RT layers
-Limiting your RT bandwidth in User Preference.
MY video disk has 150GB left, out of 250gb
my hard drive that has fcp has 120GB out of 300GB
do you know why my timeline keeps stopping and gives me this warning?
thanks Jimmy

Audio/Video slightly out of sync after exporting media and trying to watch on iPhone

Hey adobe tech heads
So, I recently upgraded to the new Adobe Premiere Pro CC, from Premiere Pro and I have to say that there doesnt seem to be any difference to the normal functionalites. While I am merely a beginner, i suppose there are more complex features that i have yet to discover.
But let me get to the point of this discussion. I have been making a few fun videos for friends of mine of their childrens birthday parties and such. I have a Nikon D3200 which is a 24 megapixel camera for images and have been shooting 1080p for the video, which i think uses 25 frames per second. (Dont quote me on that one as i am still learning all this techno-jargon). I was, in the beginning, having a slight issue with choosing the correct sequence settings in the beginning, but eventually managed to figure out that for my Nikon, i was choosing the DSLR, 1080p, 25fps option. So far, all seemed to work well, everything synced up, rendering the files often, and creating a fun memory for the parents, of their childs birthday party.
Then is comes to exporting. I would just select "Media" and then "Export" which would bring up the Export Settings Menu. I would simply press the Queue button, and then in in the Queue section, i could choose to make a video file typically for Youtube in HD. Before posting this discussion, I did a quick youtube search, so not to waste all your time, and found this link of this guy who not only showed me that i dont need to Queue it up, and can direclty select Youtube HD from the Export Settings menu which i will try, but he also confused the #%^&$(*& out of me with all his bitrate settings talk (this part starts around the 3min and 32secs mark into his youtube tutorial) - http://www.youtube.com/watch?v=j2j5dnlDmos (The reason I am showing you this is because now, i am not sure if this is what may cause my slow phone/tablet issue)
So here is my problem - Once i edit and export the file into the youtube 1080 25fps HD option, I open this new exported file on my pc and it works fine, perfectly synced and ready to share. Once i have uploaded it to Vimeo, which is my preferred social media network, it uploads fine, and on any normal pc/laptop, there is no problem and it runs just as smoothly as when it was edited. Although i noticed that the video seems to be playing at about half a second behind the audio when trying to show someone on any iPad/tablet or any mobile phone. I recently made this clip as a tester and to be able to show you awesome braniacs, because its kinda pissing me right off, that the video isnt perfectly syncing into the audio on the phones and tablets, but works just fine on a PC/Mac. I specifically made a point to match the images up to the beats of the songs, and if you watch where the little kid climbs up the indoor rockclimbing wall, this might help you understand my frustration. check the below link on your pc/mac, and then again on your phone and you will see what i mean. I even played them simutaneously together and you can see the delayed video on the phone/tablet than on the PC/Mac.
Any help would be greatly appreciated on how to fix this, as while its doing my head in, i am sure for you guys, a simply change on my lack of tech knowlege, will probably have us all smiling! Here is the clip - https://vimeo.com/7105289
Thank guys. I look forward to your replies

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.

Audio & Video fall out of synch (movies, television, video podcasts) on iTunes 10.4

I have twice downloaded and installed the 64bit version of iTunes 10.4 running on the latest version of Windows 7. Whenever I play a video podcast, movie, or television show using iTunes, the voice and video get completely out of synchronization. One seems to fall behind the other and they never resynchronize. To check to see if I have file damage, I have played the same media using Quicktime and the problem does not occur. The problems seem completely localized to iTunes. Anyone else experiencing this problem?

I have the same problem and there does not appear to be a fix.
I am done with iTunes!!!
I have a lot of money invested in content and I can't play it - drives me crazy!
I am converting everyrthing to DRM free!
Sal

Non-controllable device/ audio video still out of sync?

importing dv tape with time code breaks.
i was told that by setting "non-controllable device" that fc would ignore time code and import without sync problems. is this possible ?
thanks to you guys who helped me on my previous post.

"i was told that by setting "non-controllable device" that fc would ignore time code and import without sync problems. is this possible ?"
I don't know about that - what is your device ? A deck - a cam, or ...

Video and audio fall out of sync in Captivate 6

I made a great little video demo in which I added audio while I recorded it in Captivate 6. However when I play it back the audio and video fall out of sync. How can I fix my problem and how can I prevent it from happening again?
JJ

Douglas, I found that even the SWF files have started to get out of synch as well (although not as badly as the MP4), so with Adobe's blessing, I installed Captivate 7 on my 2009 model MacBook Pro (with Windows 7 running in Bootcamp) and now when I publish both SWF and MP4 projects, they are in perfect synch.
The strange thing is that my MacBook Pro probably has less grunt than my work PC (Dell Lattitude) and I would also have thought that running in a Bootcamp based Windows 7, that would detract even further from Captivate's performance.
I am happy that this solves the synch issue, I am not happy that I must continually move projects between my office PC and my home based MacBook Pro in order to do this and I am still none the wiser as to what is actually causing the problem; although I do wonder whether it is in some way related to the reporting to base issue that was causing Captivate 7 to go into a not responding state every few minutes (that was resolved with a patch provided by Adobe support)..

Audio falling out of Sync after importing into PP

Hello there,
I'm relatively new to this, so please when you're helping me, dummy it down as much as you possibly can.
I've been using Xsplit to record games while I play. I recorded a ~2 hour video and toward the beginning of the video it seems to be pretty a-okay but later in the video when I play it in premier pro, the audio starts falling out of sync.
I have no idea why it does this or what to do. When I play the original raw video the audio and video are both on time.
After googling this issue for about 40 minutes (and i'm not 100% sure what this means but I have a general idea) I read somewhere that the reason why the audio was out of sync was because xsplit uses a "variable framerate".
Not sure if this is true or not, but regardless, I tried exporting numerous times and the audio STILL falls out of whack.
I looked on xsplit and there was a setting that i could enable to force constant frame rate.... is this a solution to that problem?
Please, help me.
Thank you.

If your current video file DOES use a Variable Frame Rate, it will not edit properly in any version of Premiere
Force your software to create a Constant Frame Rate file and try again
Go to http://forums.adobe.com/community/premiere and, in the area just under Ask a Question, type in
variable frame rate
or
VFR
You may now read all the previous discussions on this subject... be sure to click the See More Results at the bottom of the initial, short list if the initial list does not answer your question
The PPro/Encore tutorial list in message #3 http://forums.adobe.com/message/2276578 may also help, with more help in message #5

Audio is/goes out of sync

Hi guys,
Brand new user to Premiere Pro CS 5.5
I took some clips off my Galaxy Nexus that I shot the other day and wanted to cut them into a short video so I imported them into Premiere.
When I play them in Premiere the audio appears to be in sync at the very beginning of the video but as it progresses through it seems to be worse and worse out of sync as it goes along. Even in a short 1 minute clip.
When I play these raw video files in something like XBMC or the standard Windows 8 media player, or even just on my phone there don't see to be any problems with the audio/video being out of sync what so ever.
I tested this out with several random clips recorded on my phone and it seems ALL of them are doing this in Premiere no matter the duration of the video.
Why is this happening and how do I prevent/correct it?
Thank you

Cell phone video often uses a variable bit rate, such as from the iphone... these links are about iphone video, but they may help
http://forums.adobe.com/thread/881246
-and http://forums.adobe.com/thread/1011411?tstart=0
-and a fix http://forums.adobe.com/thread/934466
If those links don't help, more information might help
What are you editing, and does your project match your video?
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
http://forums.adobe.com/thread/592070?tstart=30
For PC http://mediainfo.sourceforge.net/en or http://www.headbands.com/gspot/
Also, to be sure your video matches your sequence, read on...
For CS5 and later, the easy way to insure that your video and your project match
See 2nd post for picture of NEW ITEM process http://forums.adobe.com/thread/872666
-and a FAQ on sequence setting http://forums.adobe.com/message/3804341

Final cut pro - editing music video audio falls out of sync

filmed with canon 7D- i play the music in the background for th artist to perform. upon loading up the footage into final cut, i sync the start of the video audio with the record, as they both play it falls out of sync. i did not have this problem when i edited with premiere. any ideas

Sync issues are *usually* going to be mismatched sample rates, for instance, you imported 44.1kHz audio into a 48kHz project.
This happened to me awhile back, and unfortunately, I don't remember exactly what I did to fix it. But what I *think* I did was click on the imported audio and went to the Retime menu and selected Conform Speed. If that doesn't work, right click on the audio in the event browser and select Transcode (if there's an option to do so in the dialog).
It is also possible to manually resync audio by Retiming it. Turn on snapping (N), select the clip, type Command-R and drag the audio clip's retiming handle until the end of the audio snaps with the end of the video clip (this is actually amazingly accurate.) [If your recorded audio is not the same length of the audio on the video, then set markers on the video and audio tracks and retime until the markers snap.] You should do this before any other edits.

Audio falling out of sync during playback of videos

I now have Windows 8 on a brand new laptop, and new TV dls fall out of sync between audio and video within minutes. Skipping to the beginning and dragging back to my last place in the timeline corrects this for a minute or so, and then falls out of sync again.
Also, other new purchases skip/pause every few minutes. I tested previous dls (that are still in the cloud) and had no playback problems. I don't want to delete everything and redownload until I know for sure that is the solution.

Hello dreamsofthespider,
Thanks for using Apple Support Communities.
To troubleshoot audio sync issues in iTunes on your PC please follow the steps in the article below.
iTunes and QuickTime for Windows: Audio does not play or plays incorrectly
http://support.apple.com/kb/TS1362
Take care,
Alex H.

Audio falls out of sync with FCP sequence after export from STP

Hey all,
editing sound on a short film. sent FCP sequence to sweeten the dialog and add effects, according to the timeline it is the same length as sequence length in
FCP, but when exporting from STP to FCP to complete movie, the sound ends up being about 10 frames longer than the video and starts in sync and falls out of sync over the duration of the film.
Have tried changing preference settings in STP, exported about 5 ways to breakfast and all have same result.
Anyone have a solution to this problem?
Much thanks,
Holly

I just experienced this same thing, and as Christof says, it had to do with 'Easy Setup' and 'all formats'. I've been editing a picture shot on RED in Apple ProRes 422 (HQ) at 2K (2048 x 1152) and 24fps...FCS 3 (FCP 7 latest version). Whenever you trash preferences or start up FCP new, you get the 'easy setup' menu. Previously, I could just hit 'okay' and go ahead into FCP and change the settings/resolutions within the project...even if the 'easy setup' default was, say, DV/NTSC 29.97. Also, when opening up an active project after trashing prefs, the project itself would still have the same editing/playback settings/resolutions, even if the 'easy setup' window had its default DV/NTSC setting. Plus, if you create a new timeline and its default is one format, once you drop a different format into it, it asks you if it should adjust to that format anyway, and of course, you say yes and everything is fine.
Well....in this most recent FCP update, whenever I'd export an AIFF from the timeline and reimport....or if I'd just import an AIFF...it would do something to the playback rate of that newly imported/reimported sound file and suddenly its sync has drifted all over the place within just a minute or so. But strangely, it wouldn't do it to audio that's attached to picture (.mov/MP4/etc.)....only isolated audio files (AIFF/WAV). So naturally, I wondered if something was going on during the export process or the like.
The solution is to make sure that when you open FCP (newly, or after trashing prefs), make sure you pick the settings/format/framerate in that 'Easy Setup' window that matches what you intend to edit as closely as possible. In my case, the format is Apple ProRes 422 (HQ), 2048 x 1152 @ 24fps, and I use a Blackmagic Multibridge so I have settings for it. Hence......*Format; HD, Frame Rate: 24, Use: Blackmagic HDTV 1080P 24 - 10 bit.* Whereas the default upon startup is....Format: (all formats), Frame Rate: 29.97, Use: DV/NTSC 48KHz.
You can also set these in the 'Audio Video Settings' menu. Now, whenever I export and reimport an AIFF, or just import an AIFF (like the soundmix prepared by our sound designer), sync stays and there's no drift. So make sure you've picked the right settings when starting or reopening a project, again as Christof pointed out.

DVD encoded video and audio progressively get out of sync

Hi Compressor professionados,
I've been trying to finalise a DVD I’m creating but keep having the same show-stopping problem where I just can't get the timing of the audio and video right after encoding it to MPEG-2/ac3 for DVD Studio Pro. When I lay it into the track in DVDSPro it plays fine at the start of the track but as the clip gets longer the audio and video gets further and further out of sync, by a few seconds (eg. for over 1 hour length footage).
I've seen similar posts online about timing issues with Compressor but nothing I saw has hit the nail on the head for me. I also posted my problem on Creative Cow but didn't get the help I needed to fix my problem.
Here's the specs:
FCPro X 10.1.4
Video project: 1080i (@ 25i)
Audio 44.1 kHz
Render: Apple ProRes 422
Length: 01:13:05:02
Compressor 4.1.3
MPEG-2 Setting (only what I think is important... or I don't know)
Format: Elementary Stream
Stream Usage: DVD
Retiming: Set duration to: 100% (shows 01:13:05:02)
Video Frame Rate: Auto (25fps)
Field Order: Same as Source
GOP: greyed out at 12
ac3:
Sample rate: 48kHz (the only choice)
Data rate: 224 kbps
DVD Studio Pro 4.2.1
PAL DVD-9 project
From FCP I send my project to Compressor and when I drop both a DVD Audio and Video codec onto it they both show as Retiming 100% (and the length looks the same) but the results are still unsynchronised at the end of the clip when they are placed into the Track in DVDSPro. I've also tried changing different settings, like MPEG-2 Retiming duration to "So source frames play at 25 fps", but I'm still having troubles.
At one point I managed to get the A/V timing right for my track and I then ran what I thought was the same settings for all my other tracks in the DVD but they ended up with a similar outa-sync problem so I deleted everything to try again and realised I'd deleted my good files. And I just can't seem to replicate it again. I’m not sure if it was an accidental mistake that worked or I hit on the right settings. Either way, it shouldn’t be this hard to get it right, for heaven's sake!!!
Also, strangely, when I open the MPEG-2 file in QuickTime Player (10.4) it shows 01:10:30 long but if I open the same file in QuickTime Pro 7 it shows as the correct 1:13:05. And DVD Studio Pro shows 01:13:05:02 for both the audio & video assets but their sync is still out at the end.
This problem stopped me from producing the DVD last Christmas and I tried to pick it up again to give it to the family for this Christmas but ended up having to bail yet again - not impressed!!!
I'm hoping it's a simple solution of getting the settings right but it may also be a bug! Apparently, my bro-in-law has had similar problems and has ditched the DVD route altogether. I already have all of my menus etc. set up and I'd hate to have to ditch all that hard work.
Thanks in anticipation,
Brett

Thanks so much Russ & Tom!
It was as easy as changing the sample rate in the FCP project from 44.1 to 48 and sending it to Compressor again. I think it was set to 44.1 because I had the project set to automatically assign the parameters from the first video dropped into it. I haven't checked yet but the audio from my camera is likely 44.1.
It would be nice if Compressor produced a warning message when you set the codec up for DVD audio that the original is set to a different sample rate & may cause timing problems when resampled to 48kHz.
Anyway, again THANKS lads for solving what has been a year long problem for me and now I can complete my Christmas project, albeit late!
Virtual chocolates to you both!!!

Audio / video fall out of sync

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