Why is my audio out of sync when I reopen the project?

Hi,
Newbie question:
I've synced my audio and video in the timeline, and linked everything, saved, etc, but when I reopen the project the next time I work on it, the audio is off again by a few frames.
I can't figure out why this is happening. What step(s) am I missing?

These are the details of my audio recording

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Audio out of sync when playing HD content

Hey
I've got an issue with the audio gets out of sync when playing some HD content. I've tried to make sure the video is stored on the Apple TV so it can't be the network connection.
I've also tried a full reset of the unit, but still no luck.
But it's all video clips that has this problem. Even though they encoded the same and so on, some videos audio get out of synced and some don't.
Also have a problem with m4v files locking the ATV (and iTunes for that matter), but renaming it to a mp4 file seems to solve it. But if someone has a fix for that as well I'd much appreciate it.
Many thanks in advance,
Jeaz
EDIT: I have tried to use component cables instead of HDMI, but the problem remains. Of course also tested the video on my Mac and no problems. A quick pause and resume usually solves it, but only for a minute or so.
Message was edited by: MrJeaz

What sort of specification is the video content? Is spec too high for AppleTV.
It may be that it's some kind of bug in AppleTV's playback, that the Mac does not exhibit, or an issue with encoding that causes a problem only on AppleTV.
If you are encoding video and using same as source for the frame rate, it may be better in some cases trying explicitly to specify the frame rate required in case automatic frame rate conversion is introducing some kind of timing issue. Test a short clip to see.

Why is my audio out of sync after exporting?

I am using Final Cut Pro X 10.1.
My footage plays fine and it's all in sync with the external audio when played all the way through on the timeline.
When I export the project the audio suddenly becomes out of sync around half way through playback.

These are the details of my audio recording

Audio is out of sync when placed in the timeline!!!

When I play a clip in the viewer, everything is fine, but when the clip is placed into the timeline and played in the canvas, the audio is out of sync by about half a second. I noticed that even when I view the sound waves, what I hear does not match up with where the playhead is. This is extremely frustrating and I have currently resulted to physically moving the audio to match it up, something that I do not want to do for the duration of my film.
I read in another post that the video and the audio could not be at the same level. How can you tell if the video and audio are at the same level??
I have FCE 3.5 if that makes any difference. Any help would be much appreciated!

How was this clip imported? If it was captured/ingested, did you make sure that the sample rate of the capture settings matched the sample rate of your audio? Normally FCE will give you a warning if they don't match, but it can't hurt to make sure.

Audio problem: large avi file / audio out of sync getting worse towards the end

Hi,
We have an 11 hours avi file (about 500GB) that plays fine in Windows Media Player and is in sync.
When we import it into Premiere Pro CS6 audio and video tracks are of the same length. At the beginning of the video sound is fine and in sync as well. But at the end of the video the audio is out of sync by a couple of frames (but still the same length). We tried different things and the only thing that worked was setting the audio buffer size to maximum. Now the audio is in sync at the beginning, middle and end of video. But of course editing is impossible like this (if you hit pause the audio needs some time to stop).
Any help or suggestions are welcome.
Cheers

AVI is a wrapper... what is inside YOUR wrapper?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
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 screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Also, When your project sequence is correct, you will not see a red line over your timeline at first import, before you do anything to the video
http://blogs.adobe.com/premiereprotraining/2011/02/red-yellow-and-green-render-bars.html
If you have a red line over the timeline after importing a video and before adding any effects... your project is wrong for your video
The NEW ITEM process will ensure that your sequence matches your video file
CS5-thru-CC PPro/Encore tutorial list http://forums.adobe.com/thread/1448923 has a link to learn about the NEW ITEM process
Now that you have your video DETAILS available, check to see if you have a video file with a Variable FRAME Rate
IF YES, you will most likely need to find a program to convert to a CONSTANT Frame Rate to edit in Premiere Elements

In cs6, my preview files are not saving on my Dynamic Link AE comps when i reopen the project

i cant figure out the life of me what seems to be the problem
This has been going on for a long time for me, dont know if anybody else has this problem, but for me, when i render out the whole entire sequence, everthing has the green bar, i save, i quit and reopen, the red bar appears and i have to re render all the Dynamic link comps again! its really annoying, i feel like its just collecting more space every time i do this
Any fix for this, and here are my specs
Macbook Pro early 2011
Processor 2.2 GHz Intel Core i7
Memory 8 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6750M 1024 MB
and im running mountain lion

It happens sometimes that preview files get lost. There's no definitive fix yet, but you could try this:
http://forums.adobe.com/thread/1144624?tstart=30

Why is my time audio out of sync when I log and capture?

When I log and Capture from my server, it copies everything. But when I play it, that audio doesn't match the video, but when I pause it, it stops on the place it is supposed to be? Anyone have this happen to them before? Please let me know. Thank You!

I don't understand. You log and capture FROM tape. You could log and capture TO your scratch disk which could possibly be over a network. If this is the case, try capturing locally and see if that works. If so. the problem is with your network, not fcp.

CP4 - Audio out of sync when publish to AVI

Hi Everyone,
I'm having a problem when I create a presentation using most screen demonstrations where when I try to publish to AVI the audio moves out of whack.
I am running a Vista PC with lots of RAM.
When I publish to Flash it works fine... but we got this thing so that it would produce an AVI !
Any ideas? I have played around with screen capture and encoding settings but to no avail.
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Hello there,
I am very sorry to hear that you have encountered problems when publishing to AVI. Since when you publish to SWF you do not experience the same problems, I would strongly recommnend that you report this issue to the Captivate team using the web address I have included below.
Adobe Captivate Feature Request/Bug Report Form
I have seen some issues with the AVI converter and it would be useful if the CP team could inspect your source Captivate file.
If you are working to a deadline then in the meantime you might want to download a trial version of SoThink's SWF To Video Converter. At least for this project you could then get the files converted to AVI whilst you wait to hear back from the CP team.
SoThink SWF To Video Converter
Best - Mark
Visit the macrofireball blog

Audio out of sync from demuxed program stream

Hi All,
I've been trying to resolve this problem without any success. I recently ripped some video from a dvd in order to make a backup. I extracted the title I wanted as a muxed program stream. I then used MPEGStreamclip to demux into .m2v and .ac3 files. I imported these into DVDSP and burned the disc. The result is that the audio drifts out of sync over the course of the length of the video (about 1.5 hours). I've done this same exact procedure many many times and haven't had this problem before. In fact the video will play back in perfect sync in both MPEGStreamclip and VLC. I did notice when importing the files into DVDSP that the length of the ac3 file shows a difference of almost 4 seconds (shorter) than the video. So obviously this is the problem. I just can't understand why if the video plays back perfectly its not being extracted properly by MPEGStreamclip. I also tried demuxing with BBDemux, which produced the same result. I then tried with the demux tools in ffmpeg and that process started creating numerous different versioned files of the original file and actually ended up running out of disc space.
Has anyone run into this problem before and found a solution?
Thanks,
Chris

Ok, I understand what you're doing now. But you're losing some quality by going to 422 and then back to m2v again, not to mention the extra time required for the encoding.
Thanks,
Chris
KADVD wrote:
Hi Chris,
I have used this method frequently when issues arise,
I use the original "Video TS" from the DVD, open,
Then open Streamclip, select the VOBs in the TS that don't end in a zero,
and drop them into the streamclip window, singly if needed, then convert
to (I prefer) pro res 422 SQ, I like the results better than DV.
assemble if needed in FCP, match sequence settings to clip, and
verify audio and video are in sync, then use compressor to create
your m2v and ac3.
Depending on how the original DVD was authored, menus, tracks etc.
the ".0" VOBs will frequently contain a 1 sec. black slug, this can
throw the audio out of sync when the video is extracted.
if there is a motion menu this will become a video clip, usually
in VOB "1.0", you probably don't want that.
Hope this is a clearer explanation.
J>H<L</div>

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
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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 and missing

I have several clips from my Panasonic LX-5 (720P). I created a new project (CS 5.5) and imported the clips. When I play the file directly from Windows Explorer, all is well. However, in the timeline, the audio is way ahead of the video and then part way through a clip, the audio disappears altogether. Also, the line at the top of the sequence is yellow (above transitions, it is green). I thought maybe the final exported file would be fine, but it had the audio out of sync and missing in the same spots, too.
Any ideas what's going on here?
Thanks,
Jay

When you created your project, did you do as below to be sure everything matched?
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
Also, I do not know that camera... so what are you editing?
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/

Audio Drifting Out Of Synce when Exporting to Quicktime

Using FCS2 and all material is HDV 1080i60 with audio 48k. Everything in my sequence plays and renders fine and is in sync. When I export to quicktime movie using current settings the sound goes slowly out of sync so that by the end of the project the sync is horrible and the actual project is short 11 or so frames??
Any suggestions?? I have always done this in the past with no problems but since switching to FCS2 I have had nothing but problems when this comes up.

I had a similar problem when I exported a 20 minute video to an .flv Playback looked and sounded fine but the .flv file direct out of Final Cut was out of sync with audio. I finally used the Render Manager under tools to remove all renders for that sequence and then just re-rendered in one shot. That export was clean. I had tried to break renders and re-render them but it didn't work, but the Render Manager seemed to fix what ever caused it. I haven't noticed again since on any other projects. Good Luck.
Rich-

A portion of audio that is synced in iMovie, is out of sync when burned with iDVD. How can I avoid this?

I'm trying to burn a simple movie, using iMovie and finishing in iDVD. A portion of the audio is out of sync when burned, despite it being in sync in iMovie. Any suggestions?
Thanks.

Hi
Try to - Save as a DiskImage - then test this with Apple DVD-tool.
Does this play OK - burn this DiskImage by using Disk Util tool.
Set down burn speed to x2 or 4
Yours Bengt W

Audio Out of Sync - Why and How to Correct

I nested two 90 minute clips from 2 separate cameras which were both shot in AVCHD. I am using Premiere CS 5.5 . As a former FCP editor, whenever audio went out of sync, a message in FCP came up immediately and told you the audio was out of sync and it was an easy fix. How come Premiere is minus such an important feature?
I shoot stage productions where there may be music but no dialogue so chercking sync becomes rather difficult. After finishing a 2 hour video, I found the audio was out of sync in the nested sequences. Is there any way to auto resync the audio automatically?
Seems to me that Premiere Pro is a sub Pro App if simple audio sync is so hard to maintain in nested sequences. Makes nesting a sequence a waste of time if you have to redo the edit as a reslut of audio out of sync.

Hello Everyone,
Has anyone found a solution to this BUG?
This happens to me all the time with Adobe Premier CS6.
It is an obvious Software BUG that needs to be corrected. I am a TV show editor.
I have had this happen to me 4 different times. You don't have to do anything special. The video with sound runs perfectly with any other product on your computer..but goes out of sync in Premier. I have tried cleaning up the Media Cache .cfa and .pek waveforms. No joy. I have tried relinking the media. No joy. I have tried moving the project and renaming and relinking. No joy. Rendering No joy. Setting the media cache to local area. No joy.
If this had happened to me just once, I would say, I have done something wrong. It has happened now in 4 different projects on four different shows. I have produced and released over 100 shows to TV.
I have checked everything, I have reloaded footage off camera. I have checked and bought new cables. I have checked codecs, frame rates, loaded into other products. All fine. I just wish Adobe engineers would do this same type of debugging of their software.
I use to work for Hewlett Packard Software division. We were taught to alfa test, beta test and not release until bug rates
were at certain levels. Some bugs just have get through or you never get to release. But this bug really hits your productivity in a major way. You have to resync BY HAND each cut... all your sound after hours and days and weeks of getting it perfect. Then in a split second. FFFFDDDDDDDDD
I have been editing with Premier for 6 years.... It only seems to be since I have upgraded to CS6. And I have to re-link by hand to correct the problem. I sync on electronic clapper board number and sound - almost impossibe not to sync. I will be working away happily, cut out some footage go to my next grab..BANG out of sync. That simple.
All I know is that it happens and for ADOBE to really be a true professional editing suite in the the TV/Movie world.... This is just not on. By any chance have they released a patch or bug fix to repair this. I have spent over 3 weeks edting a television show again .......needing to go to air in less than three weeks and all of a sudden between one cut and delete.. the sound is out of sync across the whole interview. JUST NOT ON. I have spent 4 hours now..none productive hours trying to resync the sound, find solutions on the website via forums. Some ideas have been really good and I have tried them. None have worked. Still unsynced. Almost completed show I now have to re-sync by hand. At this point, I am thinking FCP is looking good. I cannot stand this loss of productivity and time.
This is not the only forum complaining about this..that should tell you something.

Apple's DVD Player: audio in-sync. External DVD Player: audio out of sync

I exported my Sequence from FCP to QT, used compressor to make m2v and ac3 (Dolby) files, then used DVD SP to burn a DVD.
When I play the DVD on my Mac Pro using Apple's DVD Player, MPEG Streamclip or VLC, the audio is in sync with respect to the images, FCP's Canvas and FCP's QT export.
But when I play the DVD using any of three different external DVD players, the audio momentarily drifts out of sync by 30 to 40 frames, near the end of my 30-minute program, but is back in sync after about a minute, when the shot at hand ends and the next shot begins.
More specifically, it's as if the video lags by about 30 to 40 frames, but there is no stuttering or other obvious visual sign that this is happening.
Why would Apple's DVD Player, MPEG Streamclip or VLC play the audio in sync while these external DVD Players play it out of sync?
I should add that in order to verify that the TVs to which the external DVD players are attached are not the source of the problem, I monitored the audio using headphones connected directly to the audio outputs of the DVD Players as well as connected to the headphone jacks of the TVs, and there was no difference, i.e. in both cases, the audio drifts out of sync momentarily, as I describe above.
I can only think that DVD SP is muxing the m2v and ac3 file in such a way that software DVD players can demux it without difficulty, but hardware DVD players cannot.
Does anyone know how to fix this problem?
Thanks.

Please tell us what was wrong.

Why is my audio out of sync when I reopen the project?

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