Super Slow / Choppy Video and Audio / ?

Hello Helpful Co-Users...
I am a fairly experienced film editor who has, in the last 2 years, begun working on small projects on iMovie. I am currently finishing up the third part of a three part project, and have come up to a problem I can't solve with any of the solutions I've already found on this forum: this 26-minute project is completely slowing my computer down beyond recognition. While the other two parts have, more or less, run fine (at 30:00 and 45:00) this project has recently begun to <really> slow the system down. Lags, choppiness, spinning wheel, the works.
I've done a clean re-install of 10.4.3, run Onyx, cleared iMovie bookmarks, cleared my QT Prefs, deleted preferences, run Disk Utility, done the 'Garage Band' trick I learned in this forum, and while these great tips have really got the machine working great otherwise, squeaky clean, this movie just kills.
Now, HERE's the rub: while the other two projects did use alot of CF/X crops, extracted audio, FX, and transitions, this one uses almost all cropped shots with of audio extraction (it's a sound-heavy piece, and I need reliable cross-fades, and there are lots of slowed down FX as well) that, I'm learning now, is possibly just too heavy of a burden for iMovie. It was working great, but then I just hit a wall. I wade around in the movie for awhile after a fresh restart, and then the wheel starts spinning, and the speed goes down to like
.1 megahertz. Ouch.
My question is: have I really hit the wall? Is there a chance that I have a corrupted clip that's slowing everything down (something that was hurting a previous project)? If so, how can I best find this corrupted clip?
Is there a way to render these clips, FX, crops and transitions–-while still working in iMovie–-to help it run faster?
Is there a way of salvaging this film, whether by importing it into FCP? Or should I just kill some of the not-completely-necessary audio extractions and re-render the clips?
I invite your comraderie and expertise...I have a feeling there's something I'm missing that 2 days of diligent searching can't get at...
Thanks so much: and thanks for all the solutions that previous posts have helped me to uncover...

Welcome to the forum, Brandon.
Unfortunately, I don't think anyone has discovered why this slowdown occurs. My guess is -- and it's only a guess -- that lots of extracted audio clips adds to the likelihood of it happening. If so, exporting the audio, then importing it should make the problem go away.
You would share the project to an AIFF sound file, then import that file back into the project and disable your other audio track. To export, choose File>Share>QuickTime > Expert Settings > Sound to AIFF.
Not ideal, for it makes the audio harder to edit. But if that's not an issue it might be a workaround.
This problem appears to be disk-related in some way. Sometimes moving the project to another disk solves the problem. Reformatting the disk has helped too.
http://discussions.apple.com/message.jspa?messageID=1329812#1329812
You've obviously covered the bases on this. If you discover something that works, please let us know.
This bug is long overdue for squashing.
Karl

Similar Messages

Choppy Video and Audio in Chrome after update to Yosemite

Anyone having the same issue as me? In Chrome my video and audio is choppy (play 1/2 second, pause, play again, etc). If I close Chrome (and quit all the way), and restart all is good for a few hours, then right back to the choppy playback (YouTube, Pandora, anything...). Only since updating to Yosemite. Any tips/suggestions?

I have this issue as well.
Only way I know to fix it is to CMD + Q and quit the Chrome process entirely. I'm a web developer so it's super awesome when I have to kill my 20 browser sessions just to fix this issue.
I have confirmed this issue happens in the HTML 5 video player as well as in Flash video.
NOTE: In the video below the audio/video skipping is part of the recording.
https://www.youtube.com/watch?v=9s1SiCQb-RU&feature=youtu.be

Adobe premiere elements 13 - im getting choppy video and audio in premiere elements 13, how can i fix this...

what settings in preference and project settings can i set to fix this. i have a windows desktop
asus m11
windows 8
64 bit
intel core i5
2.8 ghz
8gb ram
i hav the software on my c drive and in scratch disks preferences i have the rest on my 2tb external drive same as project. thanx in advance...........

FNGTF84
Thanks for the follow up. Sorry that the news was not better.
As for project settings (project preset)....that should be set to match the properties of the media that you import. Only one project preset per project, so, if you have more than one format, you need to set priorities for the project, and then work everything else around that prime choice. But, for now, assuming all the project content have the same format.
The program is set up to have the project select the project preset based on its analysis of the properties of the first source you drag to the Timeline. If it cannot do that for some reason, it does not give you the closest project preset for what you need, instead it gives you its default NTSC/AVCHD/Full HD 1080i30 or its PAL counterpart if you are working in a PAL setup. You can always check to see what the project set. See Edit Menu/Project Settings/General and the readings for Editing Mode, Timebase, Frame Size, and Pixel Aspect Ratio (even if they look grayed out). You can view project settings there, but you cannot make significant changes in what has been set. So, you start a new project if the settings are not right.
The manual way for you to set the project preset....
File Menu/New/Project and Change Settings
In Change Settings, change the project preset to match the properties of your source file. OK out of there.
In the New Project dialog that you see next, change the name of the project, and make sure to have a check mark next to Force Selected Project Settings On This Project. OK out of there.
Back in the Expert workspace, import your source media using the project's Add Media/Files and Folders.
If you setup according to my suggestions in post 3 and are still have previewing issues, then I think we should look deeper into the video card/graphics card. See Device Manager/Display Adapters to verify what your computer is using. And, then go to the web site of the manufacturer of that card to determine if you have the latest driver for that card.
Please consider.
Thank you.
ATR

I'm on OS X 10.6.8 and have a .mov file which plays on QuickTime 10.0 but with choppy video and the sound is out of sync???? File details are Video Codec: DNxHD (AVdn) Resolution 1920x1080 Audio Codec: PCM S24 BE (in24) Bitrate: 1536kb/s Solutions?

I'm on OS X 10.6.8 and have a .mov file which plays on QuickTime 10.0 but with choppy video and the sound is out of sync???? File details are Video Codec: DNxHD (AVdn) Resolution 1920x1080 Audio Codec: PCM S24 BE (in24) Bitrate: 1536kb/s. Any ideas?

Question: Is all the source footage shot in 16 bit audio or is some also shot in 12 bit?
http://docs.info.apple.com/article.html?artnum=42973
http://www.kenstone.net/fcphomepage/idvd_6stone.html
http://docs.info.apple.com/article.html?artnum=93006
http://docs.info.apple.com/article.html?artnum=303550
http://docs.info.apple.com/article.html?path=iDVD/6.0/en/397.html
http://docs.info.apple.com/article.html?artnum=61636
http://docs.info.apple.com/article.html?artnum=302925

Scrol bar to slow down a video and audio file

Hello,
I need a scrol bar to slow down a video file (video and audio)
Thank you.

you want a video to play at something other than its native framerate?
if yes, you can't easily do that with an flvplayback component. you'll need to separate the audio and visual parts of your video and had them to a movieclip timeline. then you'll need to customize the playback speed of that movieclip.
you can use the following to play any movieclip (forward or backward) at any speed:
function playF(mc:MovieClip, m:int, n:int, fps:int):void {
    var playFFF2:Function = function(mc:MovieClip):void {
        trace(getTimer(),mc.currentFrame);
        if (mc.m<mc.n) {
            mc.nextFrame();
        } else {
            mc.prevFrame();
        if (mc.currentFrame == mc.n) {
            clearInterval(mc.int);
        //updateAfterEvent();
    mc.m = m;
    mc.n = n;
    mc.fps = fps;
    mc.gotoAndStop(mc.m);
    clearInterval(mc.int);
    mc.int = setInterval(playFFF2, 1000/mc.fps, mc);
// and to stop it:
function stopF(mc:MovieClip):void {
    clearInterval(mc.int);

Video and audio freezeing

For some reason my computer has been running super slow. When watching video like youtube and ustream. My video and audio will randomly start freezing which is super annoying, kind of like a skipping cd or dvd. I have reset safari and cache and its still doing it. i dont know what else to do any sujestions? thanks

Follow this workflow to help assure the best qualty video DVD:
Once you have the project as you want it save it as a disk image via the File ➙ Save as Disk Image menu option. This will separate the encoding process from the burn process.
To check the encoding mount the disk image, launch DVD Player and play it. If it plays OK with DVD Player the encoding is good.
Then burn to disk with Disk Utility or Toast at the slowest speed available (2x-4x) to assure the best burn quality. Always use top quality media: Verbatim, Maxell or Taiyo Yuden DVD-R are the most recommended in these forums.
OT

FaceTime - choppy video and lagtime

are there any tips or suggestions to improve the choppy video and lagtime when using Factime? Even when we're trying it in the same household, on the same network, its choppy and there's lagtime.... even worse when we're using it for our distant friends...
any help or suggestions is appreciated!
thanks

I have this issue as well.
Only way I know to fix it is to CMD + Q and quit the Chrome process entirely. I'm a web developer so it's super awesome when I have to kill my 20 browser sessions just to fix this issue.
I have confirmed this issue happens in the HTML 5 video player as well as in Flash video.
NOTE: In the video below the audio/video skipping is part of the recording.
https://www.youtube.com/watch?v=9s1SiCQb-RU&feature=youtu.be

How to align or sync video and audio?

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.
1. Using what are called keyboard modifiers, such as Ctrl or Alt (Windows).
2. Grouping block of clips so that the clips move together
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
It uses a version of Premiere Elements earlier than 13, but the principles involved are the same.
The video and audio that are going out of sync.... are they linked or grouped before the addition to the existing Timeline?
After the fact, you will need to move the Timeline components back in place.
If the video and audio are not linked or group, you can
(a) highlight the clip, hold down the Alt key of the computer main
keyboard and tap the appropriate arrow key for a 1 frame per tap nudge of the clip.
(b) highlight the clip, hold down the Shift+Alt key of the computer main
keyboard and tap the appropriate arrow key for a 5 frames per tap nudge of the clip.
Please review and consider. If questions or need clarification on the above, please do not hesitate to ask.
Thank you.
ATR

Video and audio skipping in PowerDVD 8

Hi,
I have an issue when I try to play DVD's in PowerDVD 8. Exactly every 5 seconds the video and audio skip, or jump/become choppy and I cannot watch a movie. I have been researching and trying to figure out what is happening but have no idea. Could it be the X-fi I have installed the latest beta drivers to no avail.
Anybody have this problem or have any ideas on how to fix it's I have updated all drivers/firmware for everything and still can't make it go, sigh.
I have the following specs:
Intel x38BT mobo
X-Fi Fatalitly champ.
4GB DDR3 RAM
9800 GTX
ASUS 8x dvd-rom
E8500 CPU
Win Vista 32-bit
Thanks

Try this utility:
http://www.thesycon.de/eng/latency_check.shtml
and post results.
Gigabyte Boards at least with x48 chipset have an audio latency bug that is only fixed via a beta bios update. I have no idea if this also might affect your board...

Internet streamed Video and Audio Lag when I roll over buttons/change tabs

Well just as the title suggests when I am watching videos online, aka youtube, hulu, etc, everything runs fine. But if I decide that I also want to check my facebook or something similar while watching these movies, the video and audio become choppy, even to the point where my audio will become distorted, and the video will just plain freeze. I'm wondering if this is a computer issue and if so how can I fix it?
I'm on a late 2007 13" white macbook, with a 2.16 GHz Intel Core 2 Duo and 2GB of RAM. I'm also using Google Chrome, but it also happens on Safari.

Well just as the title suggests when I am watching videos online, aka youtube, hulu, etc, everything runs fine. But if I decide that I also want to check my facebook or something similar while watching these movies, the video and audio become choppy, even to the point where my audio will become distorted, and the video will just plain freeze. I'm wondering if this is a computer issue and if so how can I fix it?
I'm on a late 2007 13" white macbook, with a 2.16 GHz Intel Core 2 Duo and 2GB of RAM. I'm also using Google Chrome, but it also happens on Safari.

How to sychronise a streaming video and audio?

Hello everyody,
I created a player application which plays a streaming video together with a sound. In the beggining it starts ok and sychronised but later video goes slower than sound and as a result they are totally out of sych at the end. I believe the problem is that the video file is bigger than the sound file and it buffers more so the video always stays behind the sound. Is there any way to fix it and have my video and audio always sychronised? To have the sound embeded with the audio is not an option.
Thank you in advance.

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.
1. Using what are called keyboard modifiers, such as Ctrl or Alt (Windows).
2. Grouping block of clips so that the clips move together
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
It uses a version of Premiere Elements earlier than 13, but the principles involved are the same.
The video and audio that are going out of sync.... are they linked or grouped before the addition to the existing Timeline?
After the fact, you will need to move the Timeline components back in place.
If the video and audio are not linked or group, you can
(a) highlight the clip, hold down the Alt key of the computer main
keyboard and tap the appropriate arrow key for a 1 frame per tap nudge of the clip.
(b) highlight the clip, hold down the Shift+Alt key of the computer main
keyboard and tap the appropriate arrow key for a 5 frames per tap nudge of the clip.
Please review and consider. If questions or need clarification on the above, please do not hesitate to ask.
Thank you.
ATR

I am trying to use the auto audio-sync feature. When I select the video and audio clip to be synced FCPX says its syncing them and then once finished (at 100%) no compound clip is created and the video and audio file do not sync. Any help is appreciated.

I am trying to use the auto audio-sync feature. When I select the video and audio clip to be synced FCPX says its syncing them and then once finished (at 100%) no compound clip is created and the video and audio file do not sync. Any help is appreciated.

Hi
In iMovie'11 (version 9.0.x)
on top menu row - Apple/iMovie/File/Edit/Cut (Can vary dep. on language - in Swedish Apple/iMovie/Arkiv/Redigera/Klipp . . . )
down Cut menu - Slow playback/Raspid Playback/Re-play in Slow Motion and onvards
Here one can select the Pre-Set speeds
Are you familiar with getting 'inspector' to run?
No - but I guess that Double Click on clip/sequense or ctrl-Click on it might open it.
Yours Bengt W

Import video, unsyncs video and audio

I imported video into after effec4ts. The video in a media player runs at 1min 8 seconds... in after effects it runs 1 min 11 seconds... the audio plays for the 1 min and 8 seconds, but the video is slowed down slightly and drags on for the other 3 seconds, causing the video and audio to be out of sync... What can i do to fix this? im running cs5.5

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:

I am trying to play an mp4 in quicktime and the video and audio does not sync. Any tips?

I am trying to play an mp4 in quicktime and the video and audio does not sync. Any tips? This is not hack/ripped video but a legit home movie.

In this case, it looks like Quicktime wasn't very efficient in managing memory, leading to a slowdown in playback. If QT has a lag and VLC doesn't, that's more evidence.
I couldn't say why your friend's windows computer plays the media fine, while your Mac doesn't. The only thing I could suggest is to disable QT streaming video - which has been known to slow down performance.

Yosemite airplay video and audio stutter

After upgrading to the official Yosemite /not the beta version/ on my iMac 2013 and MBP the airplay streaming of video and audio through any of my two Apple TVs results in intermittent audio and video stuttering which can drive one crazy. Sound and picture are choppy no matter from which computer or to which apple tv streaming is implemented. Any advice how to fix this issue - airplay has become practically unusable to me and family....

You can see here that many people report for this problem.Unfortunately, OS X Yosemite has a minor bug and can stream correct video and audio to Apple TV via AirPlay. You can not do nothing expect to wait for next OS X update. I have same problem and can use my apple TV.
I don't know why Apple doesn't fix this before official OS X Yosemite release, because this problem was report in there beta program from many users.

Super Slow / Choppy Video and Audio / ?

Similar Messages

Maybe you are looking for