Stuttering in CD Playback

Okay, so everytime I try to play a CD in iTunes, it stutters like crazy. When I import files, they seem all right, but if I try to play them directly off the disc, they don't work. It's really weird, considering playing CDs in other applications such as Winamp and Windows Media Player is perfectly fine.
I've tried the Quicktime Waveout trick, but it's still not working. Can anyone help?

If you have not already fixed it I DID!!!!! I went crazy till I fixed the stuttering. I went to control panel Sounds, and Devices then AUDIO. Just Change your default device I had 2 to choose from and picked SoundMAX....whaaala! It worked. If you have a choice of more than one default device for your audio pick the other...it should fix the annoying problem.
good luck

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Stuttering or jittery playback on DVD, not in FCP

Hi, I wasn't sure exactly where to post this since I don't know if it's a DVD Studio Pro problem, a Compressor problem, or a FCP problem.
In a nutshell, the problem is this: our short film looks like it plays fine in our (color-calibrated) progressive-scan monitor. When we view it on a large LCD HDTV (a friend's newly-purchased Samsung), anything in motion looks stuttery (people, their shadows, any pans with the camera). Some things stutter worse than others, looks like it might have to do with areas of high contrast (people's shadows gliding across lit areas). We don't see these problems on our own CRT TV (a 15-year-old 20" SD tv).
The question is, does this have something to do with the samsung tv - its sharpness looks like it's set way too high - or maybe with how we encoded the DVD or even compressed the FCP sequence in the first place?
We've tried applying motion blur to some of the pans, we've tried antiflicker filters to some moving shots, but these don't seem to fix the stuttering problem (and since you can only see it once it's on DVD playing on the big lcd hdtv, it's hard to do lots of parameter fiddling).
Any ideas about what could be going on? I'm hoping this is a simple matter of some compressor or dvd studio setting, or maybe we need a special fcp filter for the moving shots.
There are 3-way color corrector filters on just about every clip, if that makes a difference.
It's never been interlaced at any stage of the game, so I don't think that will be a problem.
Shot with: Canon XH-A1 in 24p mode, 1/24 shutter speed, 16:9.
Software/hardware info:
Captured directly into FCP from the HDV tapes, sequence settings are the standard 23.98 1440x1080 ("anamorphic").
Monitor: Dell 2404WFP (ultrasharp lcd monitor), connected to a Matrox MXO to do the color calibration
Compressor settings: DVD 16:9 90 minutes "best", then I upped the data rate just a bit (I think it was 7.2 and now it's 7.4). Tried default GOP settings, then tried IBBP (or maybe that was the default) and IBP as well. Otherwise, no changes to defaults.
Final Cut Studio (version 1), latest updates (so FCP 5.1.4, etc.).
DVD Studio Pro settings - all defaults. Took compressor's .m2v and .ac files, added them to a track, burned a DVD (Verbatim DataLife) at 2x speed.
If it matters, we edit on either a MacBookPro (early 2008) or an iMac (2007) core2duo about 2.2GHz each, max memory (4GB and 3GB respectively).
Thanks in advance!
kyle

Just an edit to my post - I tried hooking up the matrox mxo to a CRT TV and it looked fine (well, no stuttering). The sequence apparently doesn't have stuttering in it to begin with. So it must have been the LCD HDTV we tested on.
Just got a chance tonight to test on another plasma hdtv (different model - panasonic) and there was a bit of stuttering there. So maybe the tv's sharpness is an issue? Both TVs that showed stuttering (a plasma and lcd hdtv) were set with very high sharpness values, and a CRT TV (pretty standard 20" model) and the samsung plasma HDTV (low sharpness setting) didn't show stuttering. So maybe we're at the mercy of sharpness settings, though I'm lost as to why that would cause this kind of effect.
Is that a probable cause of stuttery playback of motion shots - the sharpness setting of the TV?
kyle

MPEG Stutters Upon PC Playback

Hello,
I'm using Final Cut Pro to edit together 30-60 min shows that I then want to playback on a PC via an optibase video plex pro card triggered by a software program called Scala.
Since DVD's were my backup playback system, I got into the habit of exporting Quicktime movies of the finished shows (not self-contained) and importing them into Compressor. In Compressor, I then used the 90 min best 4x3 settings (6.2 variable bitrate) to create seperate m2v and aiff files. I then MUX them together using BitVice Helper. Once I had the MPEG, I loaded it onto the PC playback system and put them on the air.
Recently, I've noticed a playback problem. The videos play a few seconds, pause a beat, play a second, pause again, giving the audio and video playback a stuttering quality (however, at least the audio and video were in sync).
The only MPEGS giving me trouble are the ones I've compressed on my dual 2Ghz G5, either using Compressor and BitVice Helper or using Cleaner.
Can anyone dignose the problem? Other MPEGS on the system, encoded using a very expensive PCI card on a PC, seem to playback perfectly. However, I don't know if this is because of the encoding or because I didn't give them enought time to fail.
I'm trying to figure out if this is a corrupt file problem, encoding problem, video card problem, MAC to PC problem or a driver problem.
Any ideas? This is problem is plauging me and effecting the quality of the TV station I am running (single handedly, waaahh).
I'm based in the Bay Area and would entertain bids on an MPEG consultant.
Thanks
Editing System Info
Dual 2.7 Ghz PoerPc G5
2 GB RAM
OS 10.4.3
Final Cut Pro 5.0.4
Compressor 2.0.1
Sony DVCAM DSR-45
Playback System Info
Intel D915GAVL Motherboard
P4 3.2 LGA 775 Prescott w. 1mb cache CPU
2 GB (2 x 1GB) DDR400 Memory
eVGA Geforce MX6600 256MB PCIExpreess Graphics
Optibase VideoPlex Plus MPEG Decoder
Scala InfoChannel Player

Forgive me if I'm in over my head, but does this
matter for files you don't burn to DVD? There is no DVD burning involved.
Sorry, I was under the impression that you were burning to DVD-Rs. My response should be read in light of that assumption. So, please disregard my previous post if you are not burning to DVD-Rs.
"BitVice Helper" is available for free, but Innobits AB cannot give any support for it, because we have not written it. I have no reason to believe that it is faulty in any way, but it is a third party developer who has made it publically available on a "as is" basis. Maybe "MPEG Streamclip" can do a better multiplexing for your particular project. I simply don't know.
However, if you think that the problem stems from the MPEG-2 encoding rather that from the multiplexing, I'd suggest that you explore the trial version of BitVice.
http://www.innobits.se/ssl/download.php
PLEASE NOTE:
I may have an interest in your purchase of BitVice.
Roger Andersson / Innobits AB, makers of BitVice MPEG-2 encoder for the Mac

MPEG-2 stutters upon PC Playback

Hello,
I'm using Final Cut Pro to edit together 30-60 min shows that I then want to playback on a PC via an optibase video plex pro card triggered by a software program called Scala.
Since DVD's were my backup playback system, I got into the habit of exporting Quicktime movies of the finished shows (not self-contained) and importing them into Compressor. In Compressor, I then used the 90 min best 4x3 settings (6.2 variable bitrate) to create seperate m2v and aiff files. I then MUX them together using BitVice Helper. Once I had the MPEG, I loaded it onto the PC playback system and put them on the air.
Recently, I've noticed a playback problem. The videos play a few seconds, pause a beat, play a second, pause again, giving the audio and video playback a stuttering quality (however, at least the audio and video were in sync).
The only MPEGS giving me trouble are the ones I've compressed on my dual 2Ghz G5, either using Compressor and BitVice Helper or using Cleaner.
Can anyone dignose the problem? Other MPEGS on the system, encoded using a very expensive PCI card on a PC, seem to playback perfectly. However, I don't know if this is because of the encoding or because I didn't give them enought time to fail.
I'm trying to figure out if this is a corrupt file problem, encoding problem, video card problem, MAC to PC problem or a driver problem.
Any ideas? This is problem is plauging me and effecting the quality of the TV station I am running (single handedly, waaahh).
I'm based in the Bay Area and would entertain bids on an MPEG consultant.
Thanks
Editing System Info
Dual 2.7 Ghz PoerPc G5
2 GB RAM
OS 10.4.3
Final Cut Pro 5.0.4
Compressor 2.0.1
Sony DVCAM DSR-45
Playback System Info
Intel D915GAVL Motherboard
P4 3.2 LGA 775 Prescott w. 1mb cache CPU
2 GB (2 x 1GB) DDR400 Memory
eVGA Geforce MX6600 256MB PCIExpreess Graphics
Optibase VideoPlex Plus MPEG Decoder
Scala InfoChannel Player

actually, i think you're right. i switched from compressor to a hardware encoder (WinTV). at the same time, i switched from vbr to cbr. i'm not sure if it was the switch from sowtware to a capture card or variable to constant, but it's working now. thank god.
why is it so difficult to make a program stream on a mac? isn't mpeg playback a common function?

Skipping/Stuttering on music playback

Since upgrading to iTunes 6, music playback has become completely unusable -- everything I play stutters or skips repepepepeeatedly. I've set Quicktime to safe, checked my drivers, defragged by disk, all to no effect. I don't want to abandon iTunes for playback (not least because it will take hours to change all the .AAC files to .MP3, and I'll lose everything I've bought from the music store). How do I fix this -- failing all else, is it possible to go back to version 5, which worked fine?

I've managed to solve this by winding down the
"Sample Rate Conversion Quality" under "Advanced
Audio Properties" (Control Panel | Sounds and Audio
Device Settings | Volume | Advanced) to its lowest
setting ("Good"!). I don't know what that actually
does, but the audio quality still seems fine to me,
and no stuttering.
What that actually does is force KMixer to use linear interpolation in its resampling instead of high-end multipoint interpolation.
If you don't get that, then what it does on most machines is to make the audio sound like total crap.
Hey, if it works for you, then it works for you, but I would only consider this to be a last resort. The fact that this actually worked for you tends to indicate that you either have a crap soundcard, or that you have crap drivers for your crap soundcard. Updating your audio drivers might be beneficial, and replacing the soundcard with one that doesn't require KMixer to resample normal 44.1khz input would definitely be beneficial.

How I fixed stuttering iTuned video playback

I went into quicktime preferences and unchecked;
- enable directdraw on secondary monitors
- enable direct3d video acceleration
In start, run, I typed; dxdiag and on display tab I disabled direct3d acceleration.
For games and things like cyberlink powerdvd you will need this enabled, so only disable direct3d video acceleration in dxdiag when you watch itunes or quicktime is stuttering.
Then in my ati video settings I enabled amd overdrive.
I didn't change any settings in amd overdrive because when I do I get corrupt blocky pictures and sometimes my computer crashes, so when I enable amd overdrive I just enable it and don't change any settings.
Now I can play video in itunes with no stopping of the video which unsynced video with audio.

Cool. Hopefully someone will benifit from this .

Slight stuttering with music playback

Hi guys,
As above, I've had this issue for a while now, long before Lollipop... it usually happens at the start of playback (PowerAmp) and lasts for literally a few seconds. I'm thinking it might be my memory stick. I have an older style class 10 Samsung SD in there. Thinking I should maybe try one of these?
Any thoughts

Hi slipd,
You could try backing up the SD card and then formatting it, it may be possible that the SD card is simply having issues with data transfer.
Let us know how you get on.
- Official Sony Xperia Support Staff
If you're new to our forums make sure that you have read our Discussion guidelines.
If you want to get in touch with the local support team for your country please visit our contact page.

Stuttering Jerky Streaming Playback

Video encoded at 3500 kbps, with a double pass encoding. Files are on a 1T triple interface Lacie drive. Watching video back on Apple TV starts fine but about 15 minutes in begin to start to stutter and progressively get worse as time goes on. If I restart the chapter or restart the movie from the beginning the problem goes away for another 15 minutes. If I pause the movie and restart it the problem still persists. I raised my multi cast rate on my airport extreme base station but it did not correct my issue.
Any ideas. I want to try a direct hook up to see if the problem goes away but I don't have a long enough ethernet cable. May go buy one. I know others are having this problem as well and a nice guy named Winston was helping me with the problem until the post on here magically vanished. Suspicious! Please help!!!

Something else I noticed is that the ethernet cable seems to make the problem worse! That surprised me!
I'm kind of bummed with my Apple Tv experience! I really think it could be a great product but feel it's got to many glitches. Jerky video steaming, constantly disappearing from itunes (I see this is a common problem) I wonder if the average viewer would notice the jerky video. It's pretty subtle. Maybe that's why the problem doesn't seem as wide spread. I'm an editor so my eyes are very sensitive to dropped frames...but even one dropped frame is unacceptable in my opinion.
I'm the biggest Apple fan boy around but right now I feel like I wasted my money on unnecessary stuff...an external drive that I won't be needing now that I won't be moving my DVD library onto it, an ethernet cable that didn't solve my problem and an Apple TV box that isn't quiet up to par.
I'm actually thinking I may take it back and get a refund at this point.
Hopefully an update comes out soon.
In Apples defense my encodings at 3500 kbps may be to much for Apple Tv to stream / buffer.
I'll run a few more tests and see.
Winston: I think the movie that was stuttering may have been encoded at 3500 kbps without a 2nd encoding pass. Do you think at 3500 the 2nd pass is crucial? I'm currently testing one at 3500 kpbs that I'm sure I did a 2nd pass encoding on. Expect more feedback soon.

Video stutters/judders on playback

I have noticed that when playing movies purchased from itunes on my apple tv the video seems to stutter, particularly, for example, when the camera pans across the screen. The video doesn't stop and start, it just seems to "judder" as it moves - almost like it is skipping frames. These are movies stored on the Apple TV (not streamed from my mac). The ATV is connected to my tv with a HDMI cable. Anyone have any thoughts on this?

settings/Video & Audio/Resolution. 50Hz options are marked 60 Hz are unmarked. This is usually only a problem for users in PAL areas (europe for example) and doesn't affect all tv's, I have one from five tv's that require me to change resolution when watching purchased content (24 fps), I need to change it back watching PAL (25 fps) content though.

Stuttering playback on editing monitor

Playback of movie being edited on the editing monitor is erratic and stuttery. I went to iMovie HD Preferences and selected both "Standard" and "Highest" playback modes to no avail. The stuttery playback continues.
However, when I click on "full screen playback", the stuttering ceases and playback smooths out.
I also encounter annoying delays in response to start and stop play commands in the editing process.
The movie, currently 46 minutes long, contains 100-110 stills but no slow motion scenes. Other than a half-dozen scrolling titles, all the rest is video.
Any ideas as to what's causing the stuttering and delay problems and their solutions will be much appreciated.
Ewald
iMac G5 Mac OS X (10.4.5)

If your project contains audio clips as well as video clips, you might be seeing the slowdown that occurs when the project contains many audio clips.
More about the problem here, with workarounds:
http://discussions.apple.com/thread.jspa?messageID=2597033#2597033
The precise number of audio clips that causes this problem seems to vary from Mac to Mac. As few as 30 audio clips has been reported.
The project I just tested plays poorly except in Full Screen mode. That wasn't true in the others I tested, but apparently Full Screen does work for some projects. So what I see here is consistent with your experience.
Karl

Adding Transitions freezes and stutters playback in Preview.

I'm posting this as a new issue. Since I've narrowed down my "stuttering/freezing on playback" problem while in Preview/Edit mode.
This begins to happen as SOON as I add a transition. Whether I add it automatically, or manually.
The clips play fine without transitions in the project and the Event window. These are clips from a Kodak Zi6, I believe shot HD at 60fps, and I'm using NTSC 30fps to create the project. When I "get info" on my clips, the codecs listed are H.264 and AAC, dimensions 1280x720.
When the Movie Project is exported & viewed in QuickTime, it plays smoothly.
Any ideas are greatly appreciated, as I'd like to preview my work as I go!
This movie is LESS than one minute long!

UPDATE - A workaround?
after what you posted about converting the file to the apple codec AIC - it occurred to me to try this.
Put a clip in the project browser - it starts stuttering - with or without transitions.
click on clip and select "clip adjustments". Now when you need to run slow mo you click the "convert clip" button. Do this even though you don't need to slomo the clip and it will come up with "converting whole clip" - this can take a while if the clip/event the clip is from is quite long. Hang in there. Click done. ......and......
all works perfectly.
It seems like the converter converts the whole event because if you now choose other clips from the event they too work with no problems! So looks like... before you start run the conversion on a clip from all the events you are about to use and then you can work normally...
I've run a test project and now transistions/ green screen/ PiP all work smooth. IS this the workaround we needed?
Do you know if the convertion to AiC changes size or quality? I cant tell at the moment. But it works! (well so far.....)
Please let me know if this works for you too - if so it might be worth starting another thread as so many people are having the stutter problem and i've not seen a workaround yet that's easy to do.
Anyone?
Apple - we should not need to do this!

New MAC PRO: itunes audio playback-stuttering, glitching, skipping

I have a brand new mac pro 3.2ghz quad, with 8gb ram (bought a couple weeks ago). All seems fine with the exception of brief skips, glitches and stutters with audio playback in itunes. I tried updating to itunes 11 and this did not resolve the problem. My music files play fine on my girlfriends macbook pro (purchased over a year ago), and never had any problems on my old machine (imac 24inch aluminum). I went to apple with the problem and after multiple system recoveries they determined that the computer was faulty and sent me a replacement. I just received the replacement and tested out some downloaded music from the itunes store and the same problem happened. Am I just unlucky to get two computers with this issue? Is it the Mac Pros? Has anyone had this issue with mac based machines, specifically the mac pros? I saw another thread on the issue but seemed to be primarily windows users running itunes. The skipping happens as frequent as every 20-30 seconds to every few minutes, but it is definitely enough to notice
Thanks.
Baffled,
Greg

Hi Greg.
I seem to have discovered this problem this weekend. I listen to a lot of music from my apple devices and have done for years. What I have noticed this weekend is that both my Macbook 2008 and iMac late 2010 both suffer with a brief stutter every minute or so making the enjoyment of listening to music a little annoying. Both are running Mountain Lion 10.8.2. My iMac is running the 2.93 GHz intel i7 processor with 8GB ram. Playing music should be a doddle!
From my point of view both Macs are running independently to external speakers. The music I am running on those 2 devices has been ripped on both devices. e.g. Macbook has ripped and plays Apple Lossless format and my iMac has ripped and plays songs in 320kbps. My guess is its a bug with the new iTunes 11 or Mountain Lion although I have been using 11 since its release.
While I'm not able to supply a fix I think its safe to say its not your new Mac Pro. One other thing to note is that I have been running up until this weekend a 7 or 8 year old Mac Mini as a media device in my kitchen playing Apple Lossless format with no issues at all. This device however is running Snow Leopard with all updates applied. The Macbook is now playing the Lossless music with stutters that was ripped on the Mac Mini that was playing OK.
So is the problem Mountain Lion?
Take care
Paul

FAQ: Why is playback stuttering when I preview within Premiere Pro?

Stuttering or jerky playback is very often caused by the inability of your computer system and/or Premiere Pro to render and play frames as quickly as necessary for realtime playback.
Causes vary, including such factors as inadequate hard disk speed, inadequate CPU speed, and other software interfering with playback.
For information about optimizing your computer and Premiere Pro for performance, as well as finding performance bottlenecks, see this page:
"optimizing for performance: Adobe Premiere Pro and After Effects"
Stuttering or jerky playback can also occur when a sequence's settings aren't correct for the kind of footage playing in it. See this page for more information:
"FAQ: How do I choose the right sequence settings?"

PPro before the cloud does not support crossfire... and that may cause problems
Dual Card SLI http://forums.adobe.com/thread/872941
-problem http://forums.adobe.com/thread/872103
USB2 hard drive is too slow for video editing
External eSata or USB3 are both fast enough for video editing... eSata is better - http://forums.adobe.com/thread/1117813
ONE possibility is this $47 USB3 dock with fan http://www.amazon.com/StarTech-SuperSpeed-Docking-Station-Cooling/dp/B0055PL2YI

Audio playback stuttering using AirPlay under iOS 8

I encountered a lot stuttering in audio playback with apples music app and Spotify using AirPlay mode with my AirPort express. It occurs not only in background use, but also when the apps are on top. Reseted all devices, nothing helped the issue. Very annoying, it never happend in the previous builds. I think it's a iOS 8 problem and hope Apple solves it soon. My internet works fine at 50 mbit though.

I've contacted Apple Care lately, and though they where very nice and kind, they pretended to never have heard about the issue and claimed, it should work. they gave it to their developing engineers though. Let's wait and see...

Stuttering in CD Playback

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