Itunes stuttering audio

Can anyone tell me why itunes snd quicktime suffer from audio stutter? its a real pain

Here is what I found when researching the same problem:
1) Safe mode (waveOut only) - As linked above.
This helped me but didn't fix everything. Mine would stutter and then eventually go to garbage - warbled out sounds. Safe mode got rid of the warble but not the stuttering. I eventually reverted back after I fixed my real problem (below).
2) IDE switched to PIO - http://discussions.apple.com/thread.jspa?threadID=351805&tstart=0
This wasn't my problem. If you are having hard drive errors, the system may be using a slower access to minimze the errors, and this affects the playback. Reinstalling the drivers helped some people, somehow.
3) Intel Wireless Driver - http://discussions.apple.com/click.jspa?searchID=-1&messageID=805436
This was my problem! Although it's hard to find it in this long post. If you have an Intel wireless 2100 3a MiniPCI card (like my Dell Latitude D800 does), a 2005 driver for it causes some far-reaching problems. Downgrading the driver fixed everything. Goto Device Manager->Network Adapters->Intel(R) PRO/Wireless LAN 2100 31 Mini PCI Adapter. Then select the Driver tab, and hopefully you have a Roll Back Driver button.

Similar Messages

Windows 7 (64bit) itunes choppy stuttering audio playback

Hi All,
I'm new to these forums so apologise in advance if this topic has been covered already....
I recently upgraded my Dell to Windows 7 64 bit and also upgraded iTunes/ QuickTime to the 64 bit version which resulted in audio playback in iTunes stuttering every few seconds. I waited for the latest release thinking it must be a bug which apple are addressing. Just installed it (ver. 10.1.056) but the problems is still there. I’ve tweaked quick time, installed the newest possible audio drivers, for my soundcard nothing makes any difference. If i use windows media player to play my music its absolutely fine , no stuttering , no problems at all. So why can't apple get their act together?
Has anyone else experienced this problem or found a fix? if so please get in touch.
Thanks for reading
Dave

I have a similar problem. I recently got a new laptop with Windows 7 64-Bit. I've started to rebuild my iTunes library and it was all going well. However, I noticed a lot of my files are starting to loop the first second or so of the intro for around 6 seconds before the song plays normally. At the time, I didn't think of this as a problem, but the exact same looping occurs on the iPod itself on the same files, at the same time, everytime.
After deleting the broken files and getting new versions of the same songs, I decided to test them in Windows Media Player first and there was no intro looping. Assuming all was well, I added these files to iTunes, tidied up the song info, added album art and then played the tracks to see if the looping was still gone. Some of the tracks were fine, but others had developed the intro looping. Playing these same files in Windows Media Player again, after running them throgh iTunes, also now has the looping which it previously did not.
iTunes seems to be destroying my files. Is there any way to fix this?
Message was edited by: Walleye87

Stuttering audio with itunes 7.0

what's going on with my itunes audio. now whnever itunes is playing audio, if I open any other app, i.e. net browser, and use the scroll or perform any other activity, my audio starts skipping out - badly. never did before the 7.0 upgrade????
direct x, drivers, everything up to date.
thanks!

Ok. After alot of frustration and late night experimenting I have found that controlling my page file size has seemed to correct my "stuttering audio" with iTunes 7.0. My pagefile.sys had swelled to 4 times it's normal size after the upgrade.(?) I can't prove this or tell you why it happened. All I know is setting my page file sizes to 100-800 (min.& max. respectively) my system response while having iTunes open along with other apps has improved 100%. It hasn't skipped once after re-creating all of the instances that had once brought my audio to a screaching halt.(literally) It may be helpful to note that my system currently has 2GB of ram. So setting the page file to these lower settings has not had any negative effects when running Cubase SX or my video editing software. No, I'm not an expert nor do I claim any authority in the computing industry whatsoever. Just thought I'd share my experience with others.
Steve

Fix for iTunes and Stuttering Audio Upon Opening Other Programs

This was answered for me in another mega thread, so I thought I would create it's own topic in hopes of helping as many people as possible.
This is a fix for those that have the problem of iTunes 7 working fine alone, but when opening another program such as a game, etc., iTunes 7 begins to stutter and crackle. This fix assumes that otherwise, the program works correctly (gapless, and other issues are not a problem, no blue screens of death, etc.)
First off my machine:
Dell XPS 3.4 ghz Pentium Dual Core
2 Gig RAM
Creative SB X-Fi audio card, latest drivers installed
Observed problem:
Running iTunes 7, audio sounded fine, but opening another program such as UT2004 (first person shooter game) caused iTunes 7 to stutter and crackle.
This was not an issue in iTunes 6.05. I had to upgrade as I just purchased the new Nano.
As an aside, I have another sound card on my computer, an older Layla Echo 24 professional soundcard, drivers are about 3 years old. When selecting this card, this problem does not occur.
The Fix:
Close iTunes 7
Upgrade your sound card drivers (just to eliminate that as an issue)
Upgrade to latest Microsoft direct X version:
http://www.microsoft.com/downloads/details.aspx?FamilyId=2DA43D38-DB71-4C1B-BC6A -9B6652CD92A3&displaylang=en
Start
Run
Type: dxdiag
Click "sound 1" or similarly named tab
Slide bar to "basic acceleration" (mine was at full, and basic is two clicks to the left)
Exit
Restart iTunes 7, and startup music
Open game, or other program
Your music in iTunes 7 should now be stutter/crackle free
This may not work for everybody, but it worked for me so I thought I would pass this along.
Good luck!
(resisting urge to type some snarky remark to Apple that somehow their programmers are indeed as human as Microsoft programmers)...oops...sorry about that.
Dell XPS Windows XP Creative SB X-FI Audio Card
Dell XPS Windows XP

i was hopeful, but it didn't work. well teh one thing that i had to do diff was the dx updating, WGA doesn't like to work on my system for some unkown reason (yes it was bought at a store) so i found a way around their WGA check for it (i think) the one i got was labeled as dxwebupdate for august 2006. it updated just fine and it looks like it should be the same one as the newest update release microsoft sent out
my system is a home built one and haven't had probs with itunes with any other version, until this one. i'm tempted to just go back to the newest version 6 i have, cause this is rediculous. i can't do anything without it sputtering away at me. i tryed uninstalling it and removing every trace of its exsistance off of the system (including registry) and that didn't work i made sure all numbers were set to the correct values for my sound blaster audigy gamer, i was using some non oem drivers, but switched over just to make sure witht eh newest ones creative had, and it made zero diff.
i'm wondering if it is an issue it is having with sound blaster cards...
well anyways if anyone else has any ideas i would like to hear them

Apogee Duet FireWire skipping/stuttering audio

I've bought Apogee Duet FireWire back in 2011 when I had another macbook pro and I believe it was OS X Lion powered. The problem started since I updated to Mountain Lion and next upgrades were the same. There was a time when it was not very clean if the drivers at the official apogee's site are fresh enough. But now I have OS X Yosemite and fresh drivers that claim to be for this system. As to hardware, since Apogee had only FW400 wire, later I bought FW800 wire, and then FW800<->ThunderBolt adapter. So now I use this connection: Duet -> FW400/FW800 wire -> FW800/ThunderBolt adaptor -> MacBook Pro. The audio is working normal in 80% of time, but otherwise there are stutterings of the sound. Is there a way to get rid of this problem? Thank you.
Problem description:
Apogee Duet FireWire skipping/stuttering audio
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    MacBook Pro (Retina, 15-inch, Late 2013) (Technical Specifications)
    MacBook Pro - model: MacBookPro11,3
    1 2.3 GHz Intel Core i7 CPU: 4-core
    16 GB RAM Not upgradeable
        BANK 0/DIMM0
            8 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            8 GB DDR3 1600 MHz ok
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        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
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            Encrypted AES-XTS Unlocked
            Core Storage: disk0s2 499.42 GB Online
USB Information: ℹ️
    Apple Internal Memory Card Reader
    Apple Inc. Apple Internal Keyboard / Trackpad
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    Apogee Electronics Duet 400mbit - 400mbit max
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    Apple Inc. thunderbolt_bus
        Apple Inc. Thunderbolt to FireWire Adapter
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    Time Machine not configured!
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         6%    WindowServer
         5%    coreaudiod
         2%    studioapp
         1%    Little Snitch Agent
         1%    Google Chrome
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    206 MB    studioapp
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Virtual Memory Information: ℹ️
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    Apr 7, 2015, 04:13:24 PM    /Library/Logs/DiagnosticReports/Skype_2015-04-07-161324_[redacted].hang

I just started having problems with my Duet this afternoon and found this thread so I thought I'd give a shout out to you guys to see if you have any ideas before talking with the company....
I've had my Apogee Duet since about feb and never had any problems until this afternoon. For some reason the Duet doesn't seem to want to interface with my computer at all anymore. When plugged in, the lights light up on the Duet however under system profiler I get the "unable to list firewire devices" error msg. Under the Sound tab in preferences, the Duet is not listed as an available I/O. In the Apple Midi Setup or whatever it's called in utilities, the icon for the Duet is still there but it doesn't show it as online. I can still press the big button and the little green light cycles through input 1/input 2 yada yada yada, but the computer doesn't seem to see it. When I open up Maestro, both the control and mixer screens are completely blank. I've tried resetting the unit (holding button down for 5 seconds), using different firewire cords, and finally uninstalling and reinstalling the Maestro software (using the Duet software - May 2008 link on apogees site) and none of these things solve the problem. I haven't had a chance to plug in another FW400 device into my Macbook Pro to see if it's a problem with the port, but I get the same result with the Duet on my MBP and my G5 PPC tower, which leads me to believe it's a problem with the unit. Also, since it's bus-powered, the lights wouldn't light up if the ports on the computer were fried, right?? Has this happened to anyone else?? Any ideas on how to fix it before calling up Apogee?? Any help would be greatly appreciated!

ITunes stuttering skipping, basically a useless program now

At some point during the last few weeks during the seemingly daily updates now with iTunes, I have noticed iTunes stuttering and skipping at various times. I'm up to version 7.5.0.20.
After a reboot sometimes, I can go an hour, and run many other programs before I get the stutter. Other times, it happens immediately after I reboot. And when it starts, there is NO stopping it unless I reboot. It will frequently, randomly stutter, while I am doing just about anything, but is particularly picky when I am scrolling in web browsers and other windows. These skips and stutters are worse than I've ever experienced with CDs in the last 20+ years. I cannot use iTunes anymore. Right now I have the Quintessential player streaming internet radio. I have scanned these forums, and the internet. I have tried everything I have found (about 7-8 different things) and NOTHING fixes this problem. The only other thing besides updating iTunes that has changed on my computer is that I added a new 500gb hard drive, and I have moved my entire music collection to that drive.
Any help would be appreciated. I listen to music through iTunes every day. I need to have this fixed.

Hum, my friend may have given me a hint as to what may be the problem.
I think that it has to do with Quicktime/iTunes not using my sound card to properly decode mp3s...
I have a Creative Soundblaster X-Fi soundcard. It is able to optimize its work using various modes (Entertainment, Audio Creation, Gaming), and I find that the CPU usage of itunes.exe changes depending on which mode I choose, which orients me to a soundcard driver compatibility problem. In Entertainment mode, it oscillates around 5%, in Audio Creation, around 10%...
I say that it is Quicktime/iTune's issue because all my other music playing programs use 0-1% cpu usage even when playing songs. Also, there had been problems between Quicktime and Creative drivers in the past...

Latency peaks Itunes stuttering

Since I upgraded to Itunes 8, my music stutters a lot.
After someone pointed me on a dpc latency checker, I discovered everytime the latency was very high, itunes stuttered.
I'm not completely sure if Itunes causes the latency or viceversa..
Does anyone know how I can find the cause of the latency/stuttering (and fix it)?

Hum, my friend may have given me a hint as to what may be the problem.
I think that it has to do with Quicktime/iTunes not using my sound card to properly decode mp3s...
I have a Creative Soundblaster X-Fi soundcard. It is able to optimize its work using various modes (Entertainment, Audio Creation, Gaming), and I find that the CPU usage of itunes.exe changes depending on which mode I choose, which orients me to a soundcard driver compatibility problem. In Entertainment mode, it oscillates around 5%, in Audio Creation, around 10%...
I say that it is Quicktime/iTune's issue because all my other music playing programs use 0-1% cpu usage even when playing songs. Also, there had been problems between Quicktime and Creative drivers in the past...

PLEASE HELP - STUTTERING AUDIO

This could be a long one so I apologize. I am building a slide show by importing/dragging photos into iMovie using various transitions between them. I have well over a hundred photos. I also adjusted the length of these pictures in iMovie. I added audio from iTunes and used iMovie to trim the audio I needed to fit the individual picture or pictures. Everything was going great until approx 20 minutes into the video - it started getting real slow when using various commands and then the recently added audio would stutter once in a while. I kept adding audio and the stuttering got much worse until NOW ALL OF THE AUDIO HAS A TERRIBLE STUTTER.
I emptied the iMovie trash, I ran Onyx to clean the computer, I ran the Activity Monitor on this Movie and a few others that work perfectly (this is the only one I'm having the audio stutter on).
Obviously I do not understand The Activity Monitor:
Movie with stuttering audio = (31 minutes - 7 GB), many transitions, photos and audio pieces (audio on both tracks) (all worked great for a while).
CPU= 16% at idle AND 165% running (how do you use 165% of the CPU???
REAL MEMORY= 185 MB at idle AND 187 MB running
VIRTUAL MEMORY= 514 MB AT IDLE AND 598-854 MB RUNNING
These next Activity Monitor stats are from a very comparable iMovie that works perfectly.
Movie with great audio = (33 minutes - 6.7 GB)
CPU= 16% at idle AND 115% running (again how do I use 115% of CPU??)
REAL MEMORY- 176 MB at idle AND 197 MB running
Virtual Memory= 504 MB at idle AND 540 MB running
OS 10.4.10 - Dual 1.42 GHZ - 1 GB DDR SDRAM - IMovie HD
I sure hope you can help - I have many, many, many hours into this project that I want to show at my 50th High School Reunion.
Thanks
Wally

First, you are probably not doing anything wrong, nor is your computer malfunctioning.
This is a well-known problem, usually having to do with the type and amount of audio that you are adding. Karl Petersen has taken the time to offer a variety of work-around options.
See this very long thread for more information to assist you. Read and heed anything Karl has posted:
http://discussions.apple.com/thread.jspa?threadID=534252&start=0&tstart=0
If you are nearly finished with the editing except for adding audio, and if you have the drive space, you can 'share' the movie as QuickTime, Full Quality. After the quicktime movie has been created, open a new iMovie project and import that quicktime movie into it. You can then add audio and you should not have much stuttering. The movie will be all one long clip incorporating all the tracks from your original movie. You CAN do more editing, but it is a bit more complicated.
Also, for me, even if my movies have audio skipping/stuttering, and even video stuttering, the resultant burned DVD has always come out fine.
You can also 'share' the movie back to your camcorder and reimport it into a new iMovie project.

When I watch tv shows in Front Row that I've bought off iTunes the audio gradually falls out of sync with the video. It does not happen with other files that I have converted into mp4s. Any ideas for fixing this? It's a huge bummer...

When I watch tv shows in Front Row that I've bought off iTunes the audio gradually falls out of sync with the video. It does not happen with other files that I have converted into mp4s. Any ideas for fixing this? It's a huge bummer...

I too have the same problem. The audio drop out of sync in about 5 sec in not uncommon for the audio to be 30+ sec behind video. Apple needs to fix this!!!!!!!!!!!!!!!! its a joke, my iphone is all messed up after the last update as well. at one time not to long ago apple products and software were top rated, not so much any more, more and more problems are showing up and apple is unwilling or unalbe to fix the many issues. Apple needs to fix the audio sync problem, it not the computer hardware or other software it ITUNES!!!!, there is no workaround other then hitting pause and hitting pause and hitting pause to temp fix the problem.

Stuttering Audio from 10.6.8 Update all Outputs

Hi,
I updated to 10.6.8 and now have stuttering audio using either digital output, headphone output and from the internal speakers so I think something there is a bug.
I tried rolling back 'AppleHDA.kext' using the 'MacOSXUpdCombo10.6.7.dmg' and Pacifist but that didn't help the situation.
Anyone else having similar issues/have an idea for a fix? I don't have a time machine backup with with 10.6.7 unfortunately...

I have a early 2008 macbookpro 2.8 duel with silver keys.
I purchaed the 10.6 disk from the apple store. I've had the machine for years and purchased it refurbished from apple.
I did the erase and install and migrated everything over from external drive, then did update to 10.6.8 and the usb ports still would stop working after a few hours.. Then I read on another apple community forus to reset pram, and pull out the power cable, take out the battery and hold power key for 5 seconds, then restart. that seemed to fix usb issue so far..
But overall my computer seems to be running slower then when using just 10.5.8 and it did not wake from sleep once and I had to force power off and restart.. But maybe its just getting used to 10.6.8. we will see..
Also, on another note, my battery is totally dead, and I can only run computer with power cable.. Will this affect things? it never did with 10.5.8..
Oh, on my erase and install, I just did the simplest version and did not do the full erase to zero using he advanced security measures.. I just did the one where it writes on top of everything..

RE: Macbook Stuttering, Audio Distortion

FYI
As discussed in Macbook Stuttering, Audio Distortion,
The solution to this problem is as follows:
The fix is to blow out nearly four years of dust (in my case), using the instructions given here (for replacing a fan...)
http://www.ifixit.com/Guide/Repair/Installing-MacBook-Core-2-Duo-Fan/522/1
You don't need to remove the fan, but go as far as removing the keyboard, and then you can simply use an air-duster to remove every bit of dust you can find.
If your macbook's heatsink (as in my case) was cleaned by a professional in Apple Store, and you still keep having problems with youtube, ichat, skype and have stuttering, audio and video distortion and your 2+ghz intel macbook behaves as if it's an early iMac G3 - you have to do all steps described at ifixit.com.
When I have taken out my macbook's fan (the heatsink was perfectly sterile) I have found a 5mm thick layer of compressed dust blocking 97% of the air exit.
Removing the blockage has helped and my macbook is operating like it's new.
PS: It's sad that people at Apple Store do not do their job properly.

Your processor is momentarily saturated. It's not really a 'defect' that is covered under warranty.
Flash is a widely-known resource hog. It's one of the reasons that Steve Jobs has 'banished' Flash from iPhones and the new iPad, and uses H.264 format video.
Have you also noticed that the fan becomes loud when this is happening? Almost any time the fan starts running at high speed, it's because your processor is working hard and needs additional cooling.
If you look at Activity Monitor when the stuttering occurs, you probably have a combined CPU utilization of the top two or three processes running of more than 100%.
It's also quite possible that the Free memory 'green slice' of the of the System Memory pie chart is quite tiny.
Work-Arounds
1. Run fewer processes/programs. Close and Quit every application that doesn't need to be running while you're watching Flash.
2. Try another browser. Some are better than others at running Flash. I use Safari primarily, but Firefox, Google Chrome, and Opera are also available.
3. Add RAM memory, especially if you still have just 1Gb RAM memory installed. Upgrading to 2Gb or 4Gb (MacBook 2,1 actually only recognizes and utilizes up to 3Gb) will help somewhat. It doesn't cure the processor saturation, but it does give the programs running more 'breathing room' until it reaches the saturation point.
4. ClickToFlash gives you options for how Flash is handled. Free download here --> http://rentzsch.github.com/clicktoflash/
5. H.264 format videos may be less processor intensive.
6. Buy a new Mac with a faster processor and more RAM. Even a 2.26Ghz MacBook Pro does much better than the 2007 2.16, because it uses a low power microprocessor, has 2Gb RAM standard, has a more advanced video chipset, and an unibody aluminum case to help dissipate heat.

Music Videos in iTunes have audio, but no picture

Recently, I noticed that when I click on a song in iTunes, the audio for the song will play, but not the picture. I have found, however, that by going to View > Video Size, and then clicking on any of the sizes, the picture for the video will appear, but I don't want to do that every time that I want to watch a music video... I'm just looking for a way for me to watch videos by simply double-clicking on the name of the video.
Also, I would like to note that my music videos work perfectly fine on my iPod, it is only iTunes that I'm having a problem with. The only things that I can think of recently for having anything to do with this would be either upgrading to iTunes 8.2 or buying several new music videos.

OMG Kevin thank you so much, I was having the exact same problem and was advised by iTunes Store Support to uninstall iTunes - with a 38 CD backup that would have taken some time, your fantastic solution has saved me so much time - THANK YOU!!!

Stuttering audio from airport express...

I installed my first airport express yesterday. Had some problems: my main computer couldn't load the Airport Utility (see http://discussions.apple.com/thread.jspa?messageID=7132922&tstart=0), and I've gotten things configured through another computer but I'm getting lots of stuttering audio when I attempt playback.
There's a pattern to it: the song starts fine, and then about 3 seconds in it starts stuttering. A buffering issue?
No problems on the network that I'm aware of.
I tried setting Quicktime to "safe mode waveout", but no help.
Any tips?

Typically, "stuttering" can be a result of either low signal strength or high signal noise values, or both.
It is very possible that you may have some form of Wi-Fi interference in the immediate area that is preventing your AirPort Express Base Station (AX) from getting a good clean signal.
I suggest you perform a simple site survey, using utilities like the following to determine potential areas of interference, and then, try to either eliminate or significantly reduce them where possible:
For Macs:
o MacStumbler
o iStumbler
For PCs:
o NetStumbler
o WiFi Manager

Does iTunes normalize audio when converting to AAC?

Most of my mp3s are not normalized. I want to normalize these tracks before converting them to AAC. Does iTunes normalize audio when converting to AAC? Or do i need to normalize my mp3s first, then convert them to AAC? Thanks!

What exactly do you mean by "normalize"? Do you mean leveling the volume?
iTunes uses the soundcheck feature to do this. It doesn't automatically happen when you convert a song to a different file type.
Apply it in iTunes using the edit/preferences/playback menu (Windows).
Turn it on on the iPod using the settings/soundcheck/on menu.
After applying it in iTunes, sync your iPod to reflect the changes made.
There are 3rd party programs that do this more effectively (at least in my opinion).
For Windows there is mp3Gain/aacGain.

CPU 100%, Wireless drops, iTunes stutters

This is driving me crazy. I've noticed that when i run some programs like safari, itunes and msn together of recent my cpu goes crazy to 100%. Wireless drops and itunes stutters like crazy. I'm not doing anything different, the programs haven't changed, syslogd is not affecting it.
What the **** is going on? A machine of this speed shouldn't be unable to cope with 3 programs. It has only recently been happening ie past 5 days.

Open Activity Monitor and see if you have a process called "airportd" running. I was experiencing this problem recently and airportd was the culprit. I had to kill the process and the CPU went back to normal. Searching for airportd in these discussions will give you more information.

Itunes stuttering audio

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