Weird audio out of sync problem after export

This is the second time I've run into this problem. My video and audio are in sync in my timeline, but upon export to QT, one of the clips (but ONLY one of the clips) is out of sync. I tried exporting two different times: same result.
Doesn't make sense to me. All the clips were imported from the same DV tape from my Canon HV30.
Can anyone give me some advice here?? Thanks.

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?

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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?

Audio sync problems after export

I've been having this problem occasionally ever since starting to use Premiere Pro CS6, and it's now also happening again in the latest version of CC (just updated to 7.2.2 on W7, 64bit):
A perfectly synced sequence that plays fine in its rendered preview loses sync with its audio (or the audio with the video) after exporting to mp4. (preset H.264 format). I have tried trouble shooting by deleting all render files, restarted application and computer, played with different media players... to no avail.
Admittedly the raw footage happens to be a wmv file. Which I know is not ideal. But what bugs me is that everything is perfectly in sync up to the point of creating the export file. That makes no sense. I'm about to counteract this shift now by separating the audio from the video and making up the frame difference manually, but it feels wrong to do that and is a silly hack to something the software shouldn't mess up in the first place.
Any ideas?

Holy cow, that was easy. You were right, that worked. Doooh.
Thanks.

Audio Sync problem after exporting

App : Imovie
Device : Ipad 2
iOS : 4.3.3
Rushes : MP4 from a FLIP camera
Audio track : m4a
The project is around 9 minutes. Sync ok in Imovie. After exporting, the sync is ok in the beginning but loosing it more and more as the movie goes.......i tried all the options on exporting, nothing changes. This is getting me mad......Any solutions ?

I am assuming this is because the way the flip camera embeds the audio.
The problem with editing non-iframe video is that it does not have all seperate frames.
And so the audio is sync in blocks to video.
I assume that the reason iMovie iOS is stated as only supporting video shot on an iOS device is that this video has a "standard" way to sync audio.
There are many different ways to encode mp4s.
Editing a non-Apple iOS standard video may give you these problems.
So the only real solution I can give is to convert all your video to the same standard as the iPad shoots.
You should tell Apple here, and ask for a fix:
http://www.apple.com/feedback/imovie_iOS.html
And also email other editing app creators and ask them to port to the iPad.
Then you will have more options to edit then just iMovie iOS.

Audio out of sync after exporting into Quicktime using current settings.

Quicktime file has audio out of sync when I export to quicktime movie using current settings.
Ok for about the first few minutes then, out of sync after about 10 minutes.
I shot the footage on tape with my Sony HVR-Z7u.
My Sequence setting is the same as the format of the footage as shown below.
Pixel Aspect Ratio: HD 1440x1080
Editing Time base: 23.98
Quicktime video settings: Compressor: HDV 1080p24
Audio Settings: Rate 48 KHz
Depth: 16bit
Clip format:
Pixel Aspect Ratio: HD 1440x1080
Vid Rate: 23.98
Compressor: HDV 1080p24
Audio Rate 48 KHz
Audio Format: 16bit

I recently moved and both of my editing machines were unplugged for a couple of days until I could get them set up. After turning them back on, the problem had disappeared. Perhaps leaving the system unplugged had allowed some of the internal components to reset? That's the only thing I can think of. At any rate, the issue is gone.

Audio out of sync after importing .MOV

Experiencing audio out-of-sync issues after importing a .mov clip into Premiere Pro.
The .mov clip causing the problem does not have a problem when played with quicktime or vlc: The audio matches the video perfectly.
Adobe Premiere Pro CC 7.2.1 (4) on OSX 10.9.1
Open Premiere, New Project ... > OK > Import the single video clip (whether by dragging into the app, or using the Media Browser). Start playing the clip in the Source monitor, scrub forward. Result: audio and video are way out of sync.
The .mov clip causing the problem was exported from Silverback app. http://silverbackapp.com/
Details about the .mov clip, via Media Inspector app:
============================================================
General
Complete name                    : /Users/jukeboxhero/20140203.mov
Format                           : MPEG-4
Format profile                   : QuickTime
Codec ID                         : qt
File size                        : 638 MiB
Duration                         : 34mn 46s
Overall bit rate                 : 2 566 Kbps
Encoded date                     : UTC 2014-02-04 06:52:45
Tagged date                      : UTC 2014-02-06 15:55:40
Writing library                  : Apple QuickTime
Video
ID                               : 2
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : [email protected]
Format settings, CABAC           : No
Format settings, ReFrames        : 2 frames
Format settings, GOP             : M=2, N=30
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 34mn 46s
Bit rate mode                    : Variable
Bit rate                         : 2 449 Kbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16:9
Frame rate mode                  : Variable
Frame rate                       : 18.969 fps
Minimum frame rate               : 6.522 fps
Maximum frame rate               : 19.355 fps
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.062
Stream size                      : 609 MiB (95%)
Language                         : English
Encoded date                     : UTC 2014-02-04 06:52:46
Tagged date                      : UTC 2014-02-04 15:27:35
Color primaries                  : BT.709-5, BT.1361, IEC 61966-2-4, SMPTE RP177
Transfer characteristics         : BT.709-5, BT.1361
Matrix coefficients              : BT.709-5, BT.1361, IEC 61966-2-4 709, SMPTE RP177
Audio
ID                               : 1
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format profile                   : LC
Codec ID                         : 40
Duration                         : 34mn 45s
Bit rate mode                    : Constant
Bit rate                         : 104 Kbps
Nominal bit rate                 : 128 Kbps
Channel(s)                       : 2 channels
Channel positions                : Front: L R
Sampling rate                    : 44.1 KHz
Compression mode                 : Lossy
Stream size                      : 25.9 MiB (4%)
Language                         : English
Encoded date                     : UTC 2014-02-04 06:52:45
Tagged date                      : UTC 2014-02-04 15:27:35
============================================================
The video imports perfectly into Final Cut Pro 10.1.1
I have Premiere Pro trial and Final Cut Pro trial. If there's no fix or easy work-around, I will have to ditch Premiere.

>Frame rate mode                  : Variable
No version of Premiere does "well" with Variable Frame Rate
Below is about iphone, but may help
Some people find that Iphone won't edit easily because it uses a variable frame rate
- A possible fix in message #22 http://forums.adobe.com/thread/934466

After Effects rendering the video with the audio out of sync

so, the thing is, i did the animation on flash, exported it, put it on after to edit audio and what not, everything looks fine, previews are good, so, lets render!... every time i render the final video have the audio out of sync, specially the audio that is already on the first video. the video its originally on 12 fps, if i change the interpretation to 24fps, everything get worse. any help?

ok, both Flash and After effect are CS6, i have a Lenovo Ideapad, can handle 64 bits
first i exported the video on .MOV from Flash CS6, without any problems
Then i finished the edition on After Effects, everything look good.
i have tried to render it on MOV, AVI, MP4 and the audio for the video that was exported from flash always get out of sync. i dont really move anything else

Exporting Media .AVI audio out of sync

I've got an older AMD 64x2 4200 CPU with 4GB of memory. I upgraded to CS4 and uninstalled the previous version. Everything seemed to be working fine but I started to run into a problem where I wasn't getting any audio in my DVDs. I traced this back to the media export. Which turned out to be a lack of HD space on my system drive. I cleaned up a few files but that only made matters worst, it wouldn't render at all. So I uninstalled everything then resinstalled. Now it is rendering, but the audio starts to drift out of sync. After 40mins it is defineately out of sync by at least 1 second. Any ideas on whats going on? I've tried using AVI output, now I'm trying WMV which takes longer.

Brian,
I'm not on CS4, so my encoding won't help. However, several have reported that AME is slow to start. Do not recall if any came up with fixes, or tweaks, but there are several threads on it's speed and on how long it takes to launch and begin. Might be some good info in those threads.
There have also been some issues reported with the DL (Adobe Dynamic Link) in both CS3 and the more robust version in CS4.
When these have occurred, most had great success by doing it the "old fashioned way," Exporting elemental streams for Video-only, and Audio-only, then Importing the Video-only file as a Timeline and the Audio-only file as an Asset. Drag the Audio-only file to the appropriate Timeline and it snaps into place. Might be worth the effort. Remember - multiplexing is turned OFF. Yes, DL should do this for you, without Rendering and Export, but if it does not function, you can still get the Project out of the door. Might want to also look in the Encore forum, as there has been much discussion on CS4's DL'ing. You may have to poke around a bit, as it is divided into several sub-fora. Also, some people post anywhere, regardless of what the question is. Sometimes, the sub-fora are great, but other times they are a PITA. It all depends on the posters.
Good luck with the computer problems,
Hunt

QT export audio out of sync

Hi - I'm having problems exporting. When I export HD QTs the audio is half a second ahead of the video. Playback in FCP is ok, but not great ... it often stutters and is out of sync but after pausing it, it then plays well. The Quicktime exports play better in smaller frame sizes. I feel the computer is chugging and struggling somewhat.
I've tried the following to no avail:
Quit and Restarted FCP & Computer
Trashed my Preferences
Checked 'recompress all frames' on export options
Ensured I have 15% free on both HDs (edit files are on external HD)
Started new sequences within the project and pasted in the edits
FCP Version 7.0.3
Mac OS 10.7.5
2.66 Inctel Core 2 Duo iMac
The footage is XDCAM EX from a Sony EX3. I've attached photos of my setup & sequence settings.
I've spent a couple of hours re-exporting and looking online for help but nothing seems to be working. Its frustrating as its a workflow I've done for a couple of years ... if anyone out there could help it would be amazing!
Many thanks
Oliver

(P.S. I did change the Settings of the FCP from 720p60 to 720p30 about half way through the project, but that shouldn't affect the export.)
About the time you changed FCP Easy Setup from 720p60 to 720p30 DURING Export?
As you stated on this post:
http://discussions.apple.com/thread.jspa?threadID=2384569&tstart=0
I wouldn't think that's the best time to make a major change.

Quick time export Audio out of sync

Exporting a quicktime movie (a 30 min timeline HDV 720P) for importation into Compressor, parts of the audio loose sync. The timeline is in sync.
Using latest versions of FCP and Quicktime. Pro 2.8 dual Qaud with 10gb ram
It appears to be intermittent as I have exported other similar timelines with out problem. I am trying compressor directly but as we all know that may take most of the day even using the clusters on the mac

This out of sync problem could be related to the
klyte codec I installed which may have created problem. or something went
wrong in audio capture as it should have been a sterio file as you
mentioned.
For some, the K-Lite CODEC Pack works fine. For many more, and this might well depend on which of its elements one installs, it is a total disaster. Again, depending on what has been installed, a simple uninstall of the elements might work. In some other cases, it will take much more work to clean up after it.
My best advice is to only install CODEC's on a "need" basis. I also attempt to go to the source for my CODEC's, even if that means passing up a free one, for a paid one. If at all possible, I want no hacked, or reverse-engineered CODEC's on any of my systems.
Good luck, and do please try a Project with the proper Preset, and footage captured either in Pr or HDVSplit. Let's see if, with Pinnacle our of the way, you get better results. Please report.
Hunt

Major "BUG" in Imovie 9 - Audio Sync Problem on Export !

Well I'm a hard-core Apple user from day one, but unfortunately today I'm not to proud about the latest version of Imovie 9.
It seems there has been a "MAJOR audio sync problem on export" in Imovie 9, since July 2009. Apple knows about this bug for a long time now, but didn't release any bugfix yet!
Here's what it's all about:
It seems if you use the (custom /manual) speed-adjustments and not the preset slider speeds, you will experience (after exporting your movie) annoying bursts of audio from clips that had been set to mude. The strange thing is that you will only experience this audio-bug after exporting, you will NOT experience it in the project playback mode!
Here's what you can do:
Find ALL the clips in your Project that are Speed Adjusted.
Instead of using a "Custom Speed" percentage, use any of the "Preset Speeds"
Preset Speeds on the Slider = 12.5%, 25%, 50%, 100%, 200%, 400%, 800%
Then, export your project as usual.
No more sync issues.
Really hope That Apple will come up with a real BUGFIX soon.
It's a shame that a major bug in a otherwise GREAT PRODUCT, hasen't been fixed yet!
What's wrong with Apple?...this is not one of their finest hours.
Still A BIG fan from Imovie HD,...I'll chance to Imovie 9 when the bugs are finaly fixed!

This is TERRIBLE! I have spent so much time working on this project, and I really don't want to adjust the speed settings to the preset levels, BECAUSE I need to motion of the video to match certain musical points. I can't re-film my video, and I needed this project done TODAY. I made a music video with some kids at summer camp, and today is the last day- the day we were supposed to all watch it together, and now, I've got NOTHING!!!! (Because I can't export it without all those glitches!)
I am MAJORLY DISAPPOINTED on this one. I've made movies in windows movie maker before, and purposely used imovie, because you know, everything on macs is supposed to be better. Well, I guess I was wrong.

Audio out of sync after encoding

I'm hoping someone can offer a suggestion. I've encoded my sequence 4 times now and every time the audio is out of sync with the video. The sequence is about 2 hours long. It was shot on a HD flip cam, , 1280 x 720 (1.0) 30.00 fps, 44100 Hz. The sequence is HD 1280 x 720 (1.0), 29.97 fps, 48000 Hz-Stereo. They are the exact settings I've been using to make these videos for the past 5 months since upgrading to CS5, and this is the first time I'm having this issue. I usually make 30 minutes videos, this is my longest yet.
I've definitely had this happen before with cs4, but was hoping the upgrade to a better version as well as better computer would do away with these encoding issues. I dont' know what other info you may need, but I'm happy to provide more.
I'm exporting to window's media, NTSC Source Hight Quality, output 720x480, 48kHz, stereo. Everytime I export it, the video markers only cover half the sequence. I have to move them to cover the entire sequence. Not sure if that has anything to do with it.
I'm at a loss. Any suggestions would be so appreciated.
Jules

Thank you so much. I did have problems with Encore, but I hopefully got that resolved. This specific problem is audio out of sync in my media encoder. I can't test the project beforehand. It took 2 1/2 hours to encode and when I played the finished project, it was out of sync.

Audio out of sync after speed change...

I thought I'd posted this, but it doesn't appear in the list of subjects, so I'll try again...
I have a hard limit of 30 minutes for my church's broadcasts on Public Access TV. Some of the sermons, the only part of the service we broadcast, have run over time though usually only by a couple of minutes. I've tried the "simple" fix of right-clicking on the video in the timeline and changing the "Speed/Duration" setting, making sure to click the "Maintain pitch" option. Prior to CS3 this usually worked without problem. Now, with CS3, the audio gets distorted ("fuzzy", like there's another channel added slightly off-phase) and the audio is generally out of sync with the video by as much as a full second.
Can anyone suggest WHY this is happening and, perhaps more importantly, what steps I can take to fix the audio WHEN it happens?!?!
Thanks in advance,
J. Sky 8^)

Jim,
Sorry that I've taken so long to respond...
I do this rarely, so it's hard to be definitive, but I have noticed that the DELAY (out of sync) problem can happen in either situation ("maintain pitch" selected or NOT), but have only been able to recognize the distortion (fuzziness) when "maintain pitch" is selected.
Hope that helps!
Thanks for any and all assistance!!
- Jim 8^)

Audio out of sync on source file

So I've captured 4 tapes from an event. The 1st two tapes captured produced a quicktime file with the audio out of sync. The last two tapes are fine. The sample rates match both the capture settings and sequence settings and "make new clip on timecode break" is turned on. "Abort capture on dropped frame" was left off.
I set up a new scratch disk after already capturing all the footage. I moved everything (render files, capture scratch, audio render, etc.) from one folder to another. I had suspected this being the problem until realizing the problem was not only on the timeline, but also on the source files opening in quicktime player.
I've done searches and everything, but cant seem to find anything helpful. Could dropped frames be doing this?
~ Jim

First, scroll to the right in your browser and make sure the audio 'format' is 48.0kHz...just to check.
What is your media source...DV, HDV, DVCPro...etc?
Is the sync issue a consistent amount, or does it fall further out of sync over time?
If there were timecode breaks or any other reason that caused the capture to 'drop frames', then chances are your setting for 'make new clip on timecode break' is the culprit. FCP will continue to capture beyond the break, but with improper TC.
If the sync just goes further out of sync over time, then it could be the audio was captured at 47.998 or 48.002. This can usually be fixed by 'Exporting as aiff - 48khz/16bit.
Drifting out of sync can be an issue with long captures as well. Might consider breaking captures down to 20 minute chunks.
Post back with info/answers.
K

Audio out of sync with elemental plugin, and slower than my i7!!!

Maaannn!!
I just got a PNY nvidia quadro 1800 with elemental accellerator plugin. I just transcoded 2 hours of HDV straight from premiere 4 with Adobe Media Encoder using the Elemental codec and the audio is out of sync. It plays out of sync on the Blu Ray disk, and in Encore4. The audio is perfectly synced in Premiere. I just did another project a week ago without the Elemental, using the default Main Concept encoder and the audio is perfect. I am pretty sure I have the latest version of the Elemental Accellerator because there is a button to check for updates and it says there are no updates available. Does anybody know what is wrong here?.
The transitions are getting messed up. I can see a small section with the audio synced, then the video repeats after a second throwing them out of sync. I also suspect that the Elemental accelerator does not process any faster than the default h.264 for Blu Ray encoder. I hope I did not waste my money on this nvidia quadro 1800..
Whoooaa! I just woke up and checked the transcoding time.. To transcode approximately 2 hours of HDV it took 6:35 (hr:mm) with the elemental accellerator and it took 5:09 with my i7 920 chip!! Was that nvidia card a waste of money, or what?!!! Between the slower speed and the audio out of sync, I'd say I made a BIG misteak.. Does anybody want to buy a PNY nvidia quadro 1800? it'll be on ebay very soon..
Win7 64bit, Master Collection 4, i7 2.66 Ghz, Kingston Triple Channel DDR3 1600Mhz 6Gb, ASUS P6T, PNY nvidia quadro 1800.....

Thanks Neil,
I don't think my audio interface has anything to do with it.. I am using Adobe Media Encoder for the export and the Audio interface's latency has nothing to do with it.. I see the source of the problem but not the solution.. The Elemental plugin is not working properly with the transitions in Premiere. The transitions are visibly botched and the sound is in sync for a partial second of each clip, then the video skips backward as the sound keeps playing. This happens on every clip after the transition.
Whatever you were talking about might have to do with some kind of real time export, but to where? I think Premiere might have some auto plugin delay compensation for audio tracks.. I dont think you even read my post.. My MOTU 896 Mk3 audio interface has a 128 sample buffer leaving a few milliseconds of latency, and I can set it as low as 64.. This still has nothing to do with my problem.. Thanks for your input..
I am curious to know what you thought I was capturing elemental streams and audio from my interface in real time to.. I was unaware of anything that works like that in this type of editing..
The bottom line is that my i7 chip gets the job done much faster than the quadro 1800, and that's a shame that I spent the money on the 1800.. On top of that it doesn't even work properly!!

Weird audio out of sync problem after export

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