Comments on: YouTube Audio-Video Sync Issues

By: MIke Shanahan

MIke Shanahan — Sat, 28 Nov 2009 02:54:46 +0000

What about videos on YouTube? Is there any plugin or trick to do to fix videos someone else made, which are good, except their audio is off? I often end up not watching things because the sync issue becomes unbearable.

By: Raargh

Raargh — Sat, 27 Jun 2009 15:10:38 +0000

Hi;

I struggle constantly with audio/video sync. I have concluded that YouTube is NOT deterministic – in other words, I can upload the exact same videos, give them different names, and some will play back in sync, others will not. All of the these videos are in sync when the source files played back on any of “my” computers ( I have access to literally hundreds of different Windoze and Mac computers – this is both a blessing and a curse!).

Furthermore, if one watches the same YT video at different times, on the same computer (or even on different computers), sometimes the video will be in sync, other times it will not.

To make it even more complicated, when YT deigns to bless a video with “HQ” status, using their mysterious and subjective algorithm which will randomly and arbitrarily decide a video is worthy of HQ, the audio is almost always in sync. (I know that the YT algorithm is arbitrary because I have many times uploaded the same video at a later date, given it a different name, and witnessed YT sometimes grant it HQ status, other times no HQ).

I use Sony Vegas 9 for all my editing.

If you are curious, here’s a link to a vid I re-uploaded and is now in perfect sync:

http://www.youtube.com/watch?v=m9XL82osLDk

Raargh

By: Mike Bogle

Mike Bogle — Sun, 18 Jan 2009 04:13:18 +0000

Actually you may have discovered yet another issue with YouTube. The QuickCapture option has been the source of recurring issues for me lately – and based on the discussion that’s resulted from my YouTube QuickCapture clip, we’re not the only ones having trouble.

Based on what you’ve described though our problems may be different from one another. In my case large portions of each recording is being omitted from the final version. The lag problems you’re describing may be something entirely different. Do you have a link you can post that we can take a look at?

Also, just for clarification – it sounds like it was working for you in the past but suddenly started to have problems. Is that right? Are you on the same machine and network/internet connection as before (e.g. is everything the same in your set-up as it was when it was working)?

I’ve had sync issues using Picasa3′s post to YouTube function, but not with the QuickCapture so far. If I can see a clip perhaps I can be of some assistance.

Otherwise, as soon as I have anything to report rest assured I will.

Cheers,

Mike

By: Danya

Danya — Sun, 18 Jan 2009 03:01:17 +0000

Okay — I’m a little bummed, though, because I actually recorded my video ON Youtube (i.e., using YouTube’s record-a-video or give-video-comment) feature, and there is a lag in my video.

This has never occurred, before.

Any ideas on how to resolve that?

By: TechTicker » Picasa video capture, sync issues

TechTicker » Picasa video capture, sync issues — Thu, 01 Jan 2009 11:38:13 +0000

[...] my previous experiences with audio-video sync issues (as outlined here), Picasa records the clips as Windows Media files, not QuickTime. So I’m not sure how much I [...]

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By: Bobby Rammstine

Bobby Rammstine — Sun, 05 Oct 2008 14:49:39 +0000

To to confirm that the procedure is:
1. Within QuickTime, trim to selection
2. Export to MPEG4 Video, 320×240 (ensure .mp4 extension)
3. Upload to YouTube

Audio/video sync solution:
1. Open file in QT Sync
2. In Controller Window, select measure msec (not frames), select Audio, then adjust as desired (I found +40 msec works)
3. Export to MPEG 4 Video, 320×240 (ensure .mp4 extension)
4. Open in QuickTime to verify synchronisation
5. Upload to YouTube

Is that correct? WIll this procedure work for Myspace too?

By: Bobby Rammstine

Bobby Rammstine — Sun, 05 Oct 2008 14:47:44 +0000

BTW, some wonderful softw2are that will encode and re-encode ANY type of audio or video production is AVS4YOU. They charge around $ 39 a year and you have access to all of their software. I began using it 70 years ago (not really) and have used it religiously eva since. Go Bears!

By: Bobby Rammstine

Bobby Rammstine — Sun, 05 Oct 2008 14:43:10 +0000

I agree that the video guys you work with don’t call compression and post-production “the dark arts” for nothing. And that for high quality stuff I think that’s definitely the way to go – especially when you’re using content that’s been planned, scripted and shot to good cameras. However in my case I’ll most likely be doing talking head shots straight to camera. I agree that video is complex and could arguable be harder than figuring out how to drive a high speed covertable on a icy road through the hills of San Bernadino California. That is really saying alot, not that most video production producers could not figure out how to drive a high speed covertable on a icy road through the hills of San Bernadino California, but it would certainly be one of the toughest challenges above and beyond working with an Mpeg 1, 2 or 4 codec compression and remaining to keep and upload it real time. It is sometimes best to render only a small portion of the video first to inspect it once your done. Most software such as (i.e.) vegas video can do this and you will not have to render the entire production. That would waste a lot of time and electricity, especially if the codec that you used does not work propoerly. So, in other words, just select and render small parts. Checking each for consistancy, then render the entire production with the one that you like the best. Go Bears! I hope this helps. I have work with Steve Spielburg, so although some of what we did was “on the fly” I still know my stuff.

By: Yank in Ulster

Yank in Ulster — Mon, 22 Sep 2008 12:39:56 +0000

Procedure:
1. Within QuickTime, trim to selection
2. Export to MPEG4 Video, 320×240 (ensure .mp4 extension)
3. Upload to YouTube