Video and audio slowly go out of sync

im trying ot make encore dvds the first one I made worked fine but now whenever I make a dvd the video and audio slowly drift apart as it plays.
ive tried converting the audio to AC3 but it did not help. Ive also tried various formats like vob, mp4 and avi.
does anyone have a solution?

This may or may not work but give it a try. I'm not sure what software you used to create the video file that you sent to Encore
but I'll assume that it is Premier CS3 or CS4.
Here's what I would do.
1) output your sequence two ways. a) seperate Mv2 & Audio file, b) One single AVI file. Use media Encoder, DO NOT USE DYNAMIC LINK!
2) Import each one into encore. NOTE: The mv2 file will NOT have to be transcoded.
3) Set each one up on a seperate timeline.
4) Play each time line. See if they go out of sync. If they do, make sure that you perform the following.
5) Place each timeline onto a menu. label each one so you know which is which (i.e., MV2, AVI)
5) Burn the project to an image file (don't waste a DVD).
Next try playing the DVD using a seperate DVD player (NOT ADOBE)
Test each timeline. See if they work or fail.
It sounds like a lot of work but once you know which way works, stick with it!

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Video and Audio 2 frames out of sync: DVCPRO HD 720p60. Can you help me pl?

Hi,
I'm capturing DVCPRO HD video 720p60 [shooted with a Panasonic VARICAM (AJ-HDC27)].
I'm using a Panasonic AJ-HD1200A videorecorder (by the Firewire port):
on the Final Cut Pro (5.1) timeline, video and audio are out of sync (audio comes two frames before video). Why?
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ste
Message was edited by: stebianchi
Message was edited by: stebianchi

This is normal when capturing DVCPRO HD via firewire. Happens to me all the time. I simply slip the audio back two frames when I drop them into the timeline. Only way to fix this is to get an HD capture card like the Kona LHe or Decklink Extreme and capture the footage via HD SDI as DVCPRO HD. Doing that will eliminate the sync issue.
It is all FIREWIRE's fault...
Shane

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.
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FCPro X 10.1.4
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Length: 01:13:05:02
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Field Order: Same as Source
GOP: greyed out at 12
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Sample rate: 48kHz (the only choice)
Data rate: 224 kbps
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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!!!

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Audio slowly drifts out of sync with video

I have a long continuous video clip (.MP4) that has an audio sample rate of 48 kHz. Separately, I have an audio clip (.mp3) for that take that was recorded at 44.1 kHz.
I created a sequence in Premiere with the .MP4 making sure the sequence's audio sample rate was set to 48. I brought the .mp3 into Audition where I used Edit > Convert Sample Type to change it to 48 kHz.
Back in Premiere, I dragged the converted .mp3 into the sequence and the audio still drifted out of sync toward the end of the clip.
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Two independent record devices will not stay perfectly synchronous over a long period of time unless locked via timecode or a sync cable.
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Audio slowly goes out of sync over time

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hi
i have exactly the same problem...
Im in really trouble with a project. I am producing a fitness dvd and the soundtrack is eating up frames in common to my video, where i try to syncronize the sound from. Its totally strange for me and i have no solution and answer why this is happening.And worst of all: no solution. The customer which - of course - is not satisfied.
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In Premiere 13, once I have added a video/audio clip and then either slow down the clip or add photos in between the clip causes the video and audio to be out of sync. How does one re-align or re-sync the clip once it has been edited? Thanks

mrsndmn
On what computer operating system is your Premiere Elements 13 running?
There are several ways to avoid disturbing an existing Timeline when you are adding to it.
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The following video tutorial is offered for informational and not promotional reasons
Premiere Elements: Arranging clips on the Timeline using modifier keys | lynda.com - YouTube
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Hi there,
This is probably a common problem, I have trawled the site but can't seem to find and explanation for it.
I'm capturing vide/audio into final cut pro from my SONY DVR. The video i have streaming into the sony DVR is from a small covert video device which records video/audio onto an SD card. SO I'm running that into the DVR and then DVR is outputting that as DV PAL firewire (uncontrollable device).
I'm capturing the 40 minutes of video as one clip, and when i drag it into the timeline the audio and video are WAY out of sync. Is there a simple reason for why this is happening?
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It is interesting that you are having this problem. I recently purchased a brand new Mac Pro (a week ago) and I am using Premiere Pro and it is doing the exact same thing. I mean this video and audio is REALLy out of sync. I tried capturing an hour at a time, and 30 minutes at a time. Still, no luck. I was debating on getting Final Cut, but after reading this post I am rethinking not only Final Cut, but using Apple all together. Part of me thinks that it is not a Premiere or Final Cut problem but a Mac OS problem. But hey, what do I know. I only edit for a living.

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If the file is correctly interpreted then try dragging your video onto the Create New Compositon icon at the bottom of the project panel, to create a composition with the exact same settings as your clip:

Sound slowly goes out of sync

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Thank you.

The normal process would be to export a self-contained or reference movie from FCP, then use the resulting file in Compressor and choose the appropriate DVD preset based on the duration of your movie. Compressor will create the needed MPEG-2 (.m2v) video file and AC3 audio file for use in DVD Studio Pro.
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Audio and Video Slowly Drift out of Sync

Ok so I'm hoping someone can help us out here.
So we have a video that was recorded 20 years ago on VHS tape. We captured that footage using a converter into FCP 7 using the DV-NTSC Capture preset with 48khz for audio.
The sound on that tape is awful and thankfully, we had a cassette tape that recorded all the audio. We used another converter to record that into pro-tools and bounced it out of pro tools using 48khz preset. Its currently a AIFF file.
Once we brought the two together in FInal Cut Pro, it starts off in sync but slowly drifts out about half way though. Any idea?

Find two sync points - one near the beginning and one near the end - maybe a syllable of speech, where you can see the mouth movements?
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N95 Recorded Video: Video and audio is out of sync

Audio and video is out of sync when I play videos recorded with N95 on my PC. If have used different PC applications to play the video, but all exhibit the same problem.
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To experience the problem yourself record a long video sequence with a N95.
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2. Transfer the recording to a PC.
3. Play the recording using VLC (www.videolan.org)
Another way to experience the problem is to convert the recording to AVI format at play it in MediaPlayer or WindowsMovieMaker. To convert a N95 video recording to AVI format use Mp4Cam2Avi.
http://sourceforge.net/projects/mp4cam2avi/
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28-Mar-2008 09:50 PM
el_loco wrote:
I've seen this issue, but it's not so critical for me. It doesn't happen 100% of the time or in most situations it's very hard to see.
You can edit videos on your PC, just converting them to AVI then using any Video Editor on the PC.
Yes while editing separate the audio channel from the clip and reinsert at the begining of the clip. This will minimise sync issues.To get accurate sync increase the timeline so that you are able to the see audio squiggles as a waveform.
If my post has helped you please click the white star on the right

Out of Sync Video and Audio

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Can anyone explain this at all, or help me out?
It is in sync if I import it as Quicktime movie, however, on burning the DVD the picture skips frames like crazy. However, with MPEG-2 and AIFF it is out of sync! What to do?

Welcome to the forum, John.
When you say you exported from FCP as MPEG-2 and AIFF, did you use Compressor to create both files? (In other words, did you use Export->Using Compressor from FCP?) If so, some people run into audio sync problem using the AIFF files that Compressor creates. Export the AIFF directly from your FCP project and that should cure that problem.
However...
on burning the DVD the picture skips frames like crazy.
This is possibly a related problem. Depending on the video bitrate you used, when you add uncompressed audio like an AIFF, you could be pushing the limits of what a DVD-R disc can manage. Skipping during playback is one sign of going too far. You are probably better off compressing that audio with A.Pack (DVDSP2 or 3) or Compressor 2 (DVDSP4) and using a Dolby Digital soundtrack.

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Ruta del archivo: [...].m4v
Tipo: Película MPEG
Tamaño de archivo: 667,7 MB
Tamaño de la imagen: 720 x 480
Profundidad en píxeles: 32
Velocidad de fotograma: 29,97
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Duración total: 00:30:35:15
Velocidad media de datos: 372 KB / segundos
Proporción de píxeles: 0,8889

"HandBrake, these days, is almost entirely about H.264 video, aka MPEG-4 Part 10. HandBrake is migrating to quality-based encoding."
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Video and audio not in sync

Anybody else experiencing video & audio not in sync since upgrading to Lion? I have a MacBook Pro 15-inch, Early 2011 with
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Ahh...boom. I have it too. Forgot it was even there. I had it turned off back when running Snow Leopard since it was glitchy. Apparenty, I somehow reenabled it and wasn't even aware it was on since its volume was turned down. After disabling it, all video & audio appears to be in sync.
boom...the sound you'll hear as I nuke it from my system.
Thanks efrancis76 for figuring this out. Much appreciated!

Video and audio slowly go out of sync

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