Digital Copy audio is out of synch

The audio on my digital copy movie starts ok but then becomes out of synch. I have to pause and restart to fix it.

I don't think it's a DVDSP problem from your description. I wonder if it's a compressor problem since everything is in sync on your FCP timeline but the problem shows up on export after going through compressor. (1) What happens if you export your project as a QT file (not self contained) and let DVDSP do the encoding? If that fixes the problem, I'd conclude it is indeed a compressor problem and I'd check that forum to see if anybody else is having a similar problem. (2) If the problem still exists, then maybe the problem is actually back in FCP. If that's the case, I'd use FCP rescue (see that forum to obtain this handy utility), repair permissions, and then see what happens. By the way, I'd repair permissions in any event- you never know when that's going to work!
Steve

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I am having trouble playing MFX files in Premiere Pro CC. The audio is out of synch. Is there a way to monitor the audio correctly?

I am having trouble playing MFX files in Premiere Pro CC. The audio is out of synch. Is there a way to monitor the audio correctly?
Many thanks

Chances are the pinnacle is producing .avi files or MPEFG1/2 streams - iTunes may know how to decode the audio but not the video. Download Handbrake and try running the Pinnacle files through it and adding to iTunes - use Universal format unless you have a specific device in mind.
Keep copies of the originals.
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AC

Audio & Video Out Of Synch after Editing

I edited a clip, and the audio went out of synch with the video. What did I do wrong? How do I fix it?
Kate

Kate,
Tell us more about this Clip. What format is it in? Be as specific as possible. AVI doesn't tell us enough. What CODEC is inside? G-Spot is a great freeware program for giving you that info www.headbands.com/gspot
How does it go out of sync, i.e. drifts from beginning until it's way out at the end, or starts out of sync in the beginning?
There are likely workarounds for getting it back into sync, but those methods will depend on your answers.
Good luck,
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Importing 24p audio falls out of synch

Hello,
I was just capturing two tapes of a musc video, using a panasonic GS500 to import, shot in 24p on a DVX100, and captured on the standard DV NTSC 48 kHz preset. When I watched my clips afterwards, I found that the audio falls out of synch in the longer clips. I don't understand why this has happened, because I thought the 24p was still recorded on the tape as DV NTSC but with a 3:2 pulldown effect on it. My question is how can I fix this importing problem so it doesn't fall out of synch again when I re-import?
Thank You,
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This can happen with long captures. Better Camera/deck seems to be key here.
For now, you could select the clips that drift and do a 'File'/Export as AIFF...48khz/16bit. Then re-link/replace the new audio with the original video files.
Recapturing in shorter clip length may avoid funky Aud Rates. Either way, you'll likely need to create new multi-clips and edit with those.
Within current multi-clip sequences, you can control-shift/drag left or right on an angle in the viewer to bring the sync back in line. This should only affect the angle/clip following a cut, and not the sync prior to a cut.
If you've already made many cuts througout the timeline, you could use the 'slip' tool on out of sync clips after you've collapsed the multiclip.
Hope that helps,
Kevan

Simple AUDIO & VIDEO OUT OF SYNCH

Lots of out of synch stuff out there, but all specialized. Mine is SIMPLE. COnnect a Canon Vixia HV40 HD DVD, do a capture, and audio and video are out of synch. It starts fine, but as it goes it drifts away gradually. I have NO IDEA what to do. I am not an expert at this, just an ameteur who loves HD DVD.
It happens upon capture - not when buring to Blu Ray, not when converting WMD files to Torpedo or artillery or atomic or U Tube files, or any other fancy stuff. It's not my brand of BVlu Ray disks, it's not the label I stick on it. I don't do - don't even know how to do fancy editing.
Just copy and burn is REALLY hard.
Just seems so strange that basic capture is so damn difficult and should be so simple - audio just will not line up with video.
HELP!!
I have Win 7 64 Bit, al;l kinds of processor power, latest biggest hammer bought for video editing and gaming. If you need specs I can send.

First, a clarification... Capture is what you do via Firewire from a (usually, as far as I know) tape camera
Please provide EXACT step-by-step details of what you are doing
Also, provide details about the file
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037?tstart=0
What is a CODEC... a Primer http://forums.adobe.com/thread/546811?tstart=0
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037?tstart=0
For PC http://www.headbands.com/gspot/ or http://mediainfo.sourceforge.net/en
For Mac http://mediainfo.massanti.com/

PE3 - Audio & Video out of synch on imported VOB files

I have tried adding some footage imported from DVD & is saved in a folder on the PC (by the PE process).
The file is stored as VOB 1 & VOB 2. When I import this file into the PE project the first half plays OK. When it plays onto the second file, the audio is lagging behind the video by a considerable amount.
If I view the file separately (where it is stored) with Windows Media Player, it plays back fine.
When I view the file in PE in the preview window, the out of synch fault occurs.
Something is happening in the import process to the PE project.
Anyone, have any ideas on the problem?

Here is a reply that I posted to a past thread that will give you options for fixing the Out-of-Sync issues when trying to use VOB files within PE.
In all cases it is better to not import VOB directly to PE, but convert to DV-AVI via one of these methods and then use the AVI format.
The last bullet below sends you to a Muvipix link describing how to combine multiple VOB's from one disc to a single file, this will cure the Sync problem, then convert this file to DV-AVI for import to PE:
I take the min-DVD directly from camcorder to my PC, and capture the disk via Power Director.
PD will convert the VOB's directly to DV-AVI Type 2 on one pass.
I then load this DV-AVI into PE7.
(PD v7 was pre-installed on my new PC from HP, or it can be purchased from Cyberlink).
Other options to try:
Copy the VOB's directly from the mini-DVD to your PC and use Prism to convert these to AVI.
Prism is a free convert utility and can be found here:
http://forums.adobe.com/thread/415317?tstart=0
Or load the VOB or Mpeg into PE, then use that to convert to AVI.
(Export to DV-AVI with PE8 is done with SHARE/PC, not Export under the File Menu, which is greyed out).
I've had many issues trying to work with Mpeg's and VOB's when loaded directly to PE with limited success.
So if you can get it converted successfully to AVI outside of PE, I've found this to be a better approach.
Post results, if any of this works for you...
Note: One other thing, if you are working directly with VOB's to PE, especially multiple VOB's from a single DVD, you can encounter out-of-sync issues between video and audio. If this occurs, review this link from Muvipix:
http://muvipix.com/phpBB3/viewtopic.php?f=38&t=2469:

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Dang, though it was worth a shot.
Now, one user here, Jim Simon, uses similar, and has worked out a percentage that he adjusts the remote mic's material to fit with his camera. Cannot recall exactly now, but it seems that he alters the Audio by a factor of about 104%. My memory is cloudy on the exact figure, and Jim seems to be on extended holiday. Not sure now, if he uses the Rate Stretch, or runs his mic's audio through Audition. Sorry that the memory is so fuzzy now.
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I'm exporting some rather large timelines to QuickTime from FCP 6 and all of the resulting QT files are losing audio synch. Actually the audio tracks are stretching, it seems: the audio tracks are LONGER than the corresponding video track, each time. Longer by 1 to 2 seconds.
SOME FACTORS
My files are around 25 minutes long.
I'm preserving my current settings when exporting with QT.
codec XDCAM EX 1080p24 35mbs VBR
frame rate 23.98
frame size 1920x1080
48.0khz audio
Is it simply that I shouldn't try to export files that are this big? I searched the existing archives. One person had the exact same problem, apparently, but there were no replies.
Anyone know the situation here?
Shanked

Hey Venturesome,
I've heard of things "floating" out of synch whenever you're exporting to QT with files of a particular length or longer. Back in the day, this magic file length was 5 minutes. I have no idea what the current magic maximum is... or if there even IS a maximum. If you've got synch issues inside your timeline without even exporting, I wonder if it may be you're using mixed media.
But I defer to the forum at large on this -- anyone know why our audio and video tracks float out of synch upon exporting (or in this other case, non exporting)?
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Hello, I've searched and can't find a relevant audio synch thread, although I've read several in the past.
My issue:
I export from FCP a QT file that is perfectly in synch. However, once making a disk image in iDVD, it gets 1 or 2 frames out of synch towards the middle of a 75 min project.
I've ensured that all chapter markers are at least 3 seconds from any transition or keyframe, etc. I also have fully rendered all video 100% and mixed-down all audio. I also preloaded the "text" track in QT to try and head off the synch issue. I am exporting a sequence that has several sequences nested-in from an older (much larger) file. I've further edited, requiring up to 6 audio tracks, but only 2 video tracks. But, again the QT file is perfectly in synch. It only happens when making a Disk Image.
Why is iDVD disk image putting it out of synch? Any more thoughts, suggestions for settings in FCP, QT, or iDVD?

There was a similar issue in an earlier version of compressor to DVD Studio Pro.
You don't say which versions of softeare you are using but it might be related.
The issue was that when a movie was compressed with aif audio as the chosen output this resulted in a loss of sync as time went by on the DVD.
The problem was rectified in later versions of compressor and a workaround until the update was to select AC3 audio as the preferred compression method.
It may be that iDVD uses AIF audio to construct the DVD and is the source of your problem.
HTH's

FCE4 Capturing Audio/Video Out of Synch

I run a school video lab and all of a sudden we have started to have major isues capturing HD video from our Canon Vixia cameras (both 30s and 40s). The audio and video is out of synch and I cannot figure out why. We are on iMacs running OS10.5 or above and capturing through firewire 800 cables.
Our only salvation has been to capture through iMovie and then edit the footage in FCE.
Any thoughts?

Try here and the associated links:
https://discussions.apple.com/message/9519074#9519074
Can you tell us the Properties of the Sequence you are working with?
Al

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Audio & Video out of Synch

Hi all,
I'm having a persistent problem with Quicktime movies being out of synch under windows XP. The movies are originally developed on OSX and and as soon as i bring them over to XP the fun starts. I'm guessing it's a hardware compatibility issue as i can find no other posts regarding this matter, if anybody could shed any light i would be extremely grateful.
AMD Athlon X2 Processor
Sapphire HD2600 Pro Grafix
1GB Ram
I've tried Apple basic troubleshooting steps including disabling Direct X in QT and also switching to safe mode, i've also tried updating the ATI drivers and still no joy.
Thanks in Advance

Calm please. I'm sorry I didn't include that info.
I am calm as a clam. You do not want to see me angry. Or sarcastic.
And just so you know, I've been using FCP since V1.2 and I've just now started seeing this with the current version I'm running.
I don't know you from a jar of Vick's VapoRub and I will not, I promise you, remember these bits on your next post. Neither will anyone else. If it's relevant, include it.
Anyway. I shoot with Cannon [sic] XL-1s on Sony MiniDV premium tape stock and capture using a Panasonic AG-DV2000 deck.
I have no idea what's causing this problem for you but I'd start there with a simple binary test. Take the same tape and capture from the Canon. Issue gone? then there's something about the way the Pano handles the Canon DV that your Macintosh doesn't like any more. I agree, very strange. And totally unacceptable. But there have always been weird and inexplicable discrepancies between Canon's and EVERYONE else's DV codecs. We shoot DVCAM with Sony and play on Sony decks. Seems to make ingestion simple and direct.
If the problem persists, then something Apple has encouraged you to download recently has bollixed the Canon codec's interpolation into Quicktime, once again, totally unacceptable. i just don't know what you will do about it except try to coordinate with other Canon camera users and put your concerns in the FCP Feedback box.
A good place to check and search for simliar issues will be creativecow.net and the LAFCPUG.
Hope you get it fixed, I know it must be exasperating.
bogiesan

Audio drifts out of synch

For me, this is a very inexplicable problem.
Concert video. Video taken with 5 HD cameras, camera's audio at 48KHz. Audio was also separately recorded in a Pro Tools system, also 48 KHz.
The video was later captured into FCP using the standard HD 1080 50i. Syncing up the videos was no big hassle. When adding the ProTools audio, it drifts out of sync.
I found in the FCP manual about the fact that if audio and video is not synced using a master sync / time generator, the audio can drift.
But how is this possible? I want to understand. I can understand the need for an external sync during recording, to more easily sync up the start point for each track when editing, but one second is one second long, exactly and 48000 samples is 48000 samples, wether recorded on one device or another. 48KHz is 48KHz and 1 second is one second, whatever the device.
In my mind, the master program (in this case FCP) should read exactly 48000 / second regardless if the audio is captured on the cam or on any other 48KHz device. But it does not do this... it reads maybe 48090 - or whatnot - samples per second. The result is that the audio drifts ahead of the video. Why does it do this?
This is not just in FCP. My friend is composing music on Logic Pro. The bas player (who lives in another city) records his bas lines on Logic Pro and sends the files (uncompressed). When my friend imports the bas recording into the master Logic project, the same thing happens... the imported file drifts.
In my mind, a bit is a bit, a byte is a byte, a sample is a sample... the master-program should read each sample in its place, 48000 / second, in a quantified "time grid". So, in my mind, this just cant happen, but it does. Can anyone explain why, and if there is anything one can to in the program (FCP or Logic) when reading the files to ensure actual sample-time accuracy when reading imported files?

Hi Per:
I have been through this many times. The reason that the devices go out of sync is that their master clocks (the digital equivalent of a crystal in an analog device) are all beating to their own drummers, so to speak. The internal master clocks are all off from each other the second that they began recording. It's just how long does it take before those offsets become greater than one frame of video or film, right?
This is why genlock and video TC sync were invented. What is more frustrating is that the devices do not all slip at the same speed either so usually, one nudge of the audio in one direction or another may line it up for a while, but later down the timeline, you may discover that the devices (camera tracks and the ProTools track) have all lost sync again. On a long show, you may have to do a lot of slicing and dicing to make everything stay in sync. This is the price you pay for not using really big, expensive, professional cameras, there has to be a trade off somewhere.
The best way to mitigate this is to shoot with genlocked cameras with locked TC with the PT rig or a quality TC generator as the master clock. If the projects are shot with non-genlock prosumer type cameras, the next best solution is to rent a giant TC display and position just out of frame in a position that all five cameras can easily pan to, but won't pan to it accidentally as they frame their shots. The master TC display is driven by the PT system. You instruct the cameras ops to quickly photograph just a second or two of it every "whatever length you had before it slipped, probably once every five to ten minutes". In this way, when using multicame to edit, you can quickly locate the TC display frames and slip and slide the tracks accordingly.
This can happen with any non-genlocked, non-TC reading devices. Usually I can get about 20 minutes between my cheap MD recorder and prosumer cameras before I see sync slip. Some devices have better, more steady master clocks, some have really lousy ones that slip quickly.
You just have to bite the bullet and deal with it.
Dan

Digital copy transfer errors out in iTunes 10.7after update

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I am now trying it again, but it is still doing the same thing, and now I have decided to post a screenshot of what exactly I am looking at on my end:
http://img399.imageshack.us/img399/5107/tdkproblemqw7.jpg
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Audio always out of synch

Hi all,
Setup:
Mac Pro 3ghz Intel
4gb RAM
500gb hard disk for video use only
FCP 6.0.2
System 10.5.2
Latest Quicktime
I have started to capture with the above having had no problems in the past before all the upgrades. I am losing sound synch after a few minutes. I have checked my settings. Originally capturing from my old Panasonic camera, I changed to capturing from my Canon XL1s which I have never had a problem from before. Is there an inherent underlying problem that I am not aware orf? Please help!
Mike

Canon cams have issues.
Use Firewire basic instead of NTSC FW.

Digital Copy audio is out of synch

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