All Video Streams out of sync

A few months back I noticed that when I watched online movies on Netflix about 10 minutes in the video becomes choppy and then the voice/video are out of sync. I thought it was just Netflix (called them - they told me my PROCESSOR needed to be updated bc it was too slow!). NOW all videos (youtube too) are messed up - 5-10 min in.
I have a Macbook Pro, 8 GB Ram, 2.26 Processor. It is a mid 2009 laptop.
Should I just go to Genius Bar???
Thanks for ANY suggestions!

Do you have the latest version of Adobe Flash Player?
Disconnect all peripherals from your computer. Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
Restart your computer when done.
Repair permissions after you reach the desktop-http://docs.info.apple.com/article.html?artnum=25751 and restart your computer.

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Video & Audio out of sync after update

Ever since I updated my MacBook Pro to OS X Yosemite v10.10 last week, all videos are out of sync with the audio. It wasn't just on Safari while playing YouTube videos or DailyMotion videos, but also when playing videos files on my computer. For short videos, the audio is just a second ahead or behind the video, but for long films it can be minutes apart.
Does anyone else have this problem? Can anyone tell me what caused this and how can it be solved? Thanks so much!!!

I have the same issue and it started 3 days ago. This happens with anything I'm watching, netflix, huluplus, youtube, crackle, anything that has audio and video. The biggest issue is that it's also affecting iMovie and Final Cut pro X. This is a MAJOR issue given that I make a living editing video. I hope somebody can find a solution for this issue.

Bug ? AAC / H264 video gets out of sync

ello,
we're using Wowza for live TV broadcasting. For now the service isn't publicly released (it will be a subscriber-only TV) but it will be in the next day.
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Hinted MP4 container (with "Server optimization")
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All this is being run on the same server (Gentoo Linux), which has quite low load when streaming (something like 0.06 on a bi-processor system).
All this is perfectly in sync when the files are read locally. It is also in sync if I watch with the "live" player shipped with Wowza or with my own, home-made player and do not leave the flash window or tab.
However, if I drop focus for the video window, like if I switch a Firefox tab, Safari tab, or press alt-tab and do something else, and then come back a bit later the video is out of sync (late) with the audio.
This happens only on this live streaming player, not on YouTube.
This night I have been running a test: I left the video running all night keeping focus on the window. After a 8 hour run, the video was still totally in sync so that's not a problem on the DSS side.
I then tried to drop focus and come back a minute or two later, on the video, and there's a slight offset, between 400ms and 2s. The audio is in advance, this is an invariant parameter: the video is never in advance.
So I'm wondering if that's a problem with Flash Player: obviously this is not a problem with Wowza or Darwin Streaming Server since it stays in sync. Could it be due to Flash hardware acceleration or something ? Any hints about H264 video getting out of sync with audio when Flash has not the focus, freezes for a second, and other such events ?
We are working on Adobe Flash CS4, the video is encoded with Final Cut Pro.

Is it 50p or 50i?
What make.model canera shot the footage?
Was the audio recorded to the camera or by a separate recorder?
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Audio and Video are Out of Sync

Hello,
This seems to be a reoccurring problem for me and I'd love some help getting it resolved once and for all. After capturing footage, the audio and video are out of sync in the clip AND when I drag it to the timeline. When I go through each part, it looks like the video hesitates often, which seems to be causing the misalignment of audio. But, once it is moved into alignment, it goes out of sync again throughout the remainder of the one hour video.
I'm capturing through a Canon Optura 50 Mini DV and editing with FCP 6.0.1. I have checked that the audio mode is set to 16 bit on the camera, and the capture settings have the audio rate for 48 KHz.
This same problem occurred when I was capturing another event last week.
PLEASE advise. It won't get aligned even if I take the hours and hours to move the audio left and right frame by frame.

I am still wondering why you're recommending that I use an external drive for this project.
Because the internal has more than enough to do running Mac OS X and the applications. It is constantly writing files. While DV video is at the lower end of the scale, it is still asking a lot of the drive's read and write head.
I always used external drives, but we had many problems with delays and processing problems.
At the very least, you should be using FireWire external drives. USB is no good for video as it delivers data in packets, not the sustained stream that video needs. The drives must also be formatted as Mac OS Extended. Windows FAT 16 of FAT 32 formatted drives have file size limits of 2 and 4 GB respectively. Anything larger is segemented and can cause problems on a Mac.

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Hi. So there is this glitch that when I take videos on Photo Booth the audio and video are out of sync. This started after I upgraded to Mountain Lion, and since I use Photo Booth a lot, I really do care. Is there anyway that I can fix this until Apple fixes this bug? Thanks.
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I've read all the forums. It's a big problem for most Photobooth users, Apple acknowledges it, but does not yet have a fix.
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Audio and video is out of sync!

when I record audio and video together with my isight built in camera on my macbook pro with either quicktime pro, photobooth or imovie, when I play the clip back the audio and video is out of sync! like watching a kung foo movie. I've tried everything, I've taken my book into see a "Genius" at thew mac store and he said to me that the isight is made really for video conferencing and is really not supposed to be fully in sync? Uhh thats weird, so mac makes a product and puts it on all their laptops and it only sort of works?? I've been on the phone with apple care, did a bunch of things like disk utility repairs on permisions, then used the startup disk to do another permisions repair. I've uninstalled quicktime pro and re-installed it a couple of times? If anyone could give me some advice that would be great! I'm a little frustrated as you can probably see! thanks
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m

Welcome to Apple Discussions, m
See if any of the suggestions offered here reduce your sync quality problem enough:
http://discussions.apple.com/thread.jspa?messageID=7089133&#7089133
If, after making certain that your Mac is running well, has plenty of free space on the correct drive, etc., your sync is still not close enough, you can manually re-sync any parts that are unacceptable to you using either QT Pro or iMovie.
If you check carefully, you will see that not even pro video is always perfectly synced. It is a lot of work to get things "nearly perfect," but, with a bit of practice, it doesn't take long to get things "close enough" for me.
I use the same simple process with either QT Pro or iMovie, so you can use whichever you find easiest. Whichever you use, keep the original AV clip safe and *_work on a copy_* in case something goes wrong.
If you do not already know how, here is my process, but you can adjust for your workflow:
(1) Copy of the audio track.
(2) Add the audio track copy to the AV file.
(3) Silence the original audio and work on audio copy.
(4) Insert small blank audio clips (or split and slide if using iMovie) if needed to make the audio later.
(5) Cut small bits out of quiet parts (or split and shorten in iMovie) if needed to make audio sooner.
(6) Repeat until satisfied and delete any tracks no longer needed.
(7) Save the adjusted AV file.
(8) Enjoy!
EZ Jim
G5 DP 1.8GHz w/Mac OS X (10.5.7) PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) External iSight

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chummer wrote:
it should also be synchronized with the video :-)The problem with getting it synchronized is that Javasound & your sound card have internal buffering, so there is some delay between writing to them and hearing the sound come out...
Normally, JMF handles this internally somehow by aligning things to a timebase, which can be syncronized, and allowing Processors to fill up their internal buffers ahead of time during the prefetching phase so that everything that needs to play together can have an instant start time. As it goes along, presumably adjustments are made as things get out of sync.
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All Video Streams out of sync

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