Itunes Audio Dropouts despite new firmware 6.3

I have been searching for days now, and I realize I am not the first with this problem. I have not yet found a solution. I used to run my old Dell Laptop on win2000 and my AE. Itunes would stream fine, but since then I have got a new system running XP, with an integrated Cintrino Wireless platform. I also updated the firmware for my AE to 6.3.
Since then My Itunes will not stream audio without frequent dropouts.
I have tried switching Channels, Wave output in Quicktime, network robustness as suggested by some forums but without success.
Has anyone any suggestions? I would be very grateful.
Should I revert to the old firmware, if so, how?
Thank you.
Vaio VGN S4VP Windows XP Pro Cintrino Wireless platform

I traced back my steps.
I installed itunes 4.7 and found i still had the same problem with Airport Express Firmware 6.3.
I then reverted to 6.0 in the AE, and found the solution.
SO i figured it was the Firmware. I then upgraded my itunes back to 6.whatever, and all was well.
But, Then I configured the AE to bridge my router and my laptop, and set up a static IP, the Audio drops came back.
the current config i have now is Itunes (Latest V), AE v6.0 with a static IP, running on B bandwidth, channel 8, Network Robustness.
I dont know what the problem was, it could have been the bandwidth, or something with DHCP on the AE. when DHCP was disabled, i would get Audio Drops.!!
Hope this helps!

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Audio Dropouts on new x79 build ..New to Audition..

OK here goes: I just built a shiny new monster with cs5.5 production premium. Adobe and after effects run strong and fast. But I can't even listen to a single track on Audition with out playback skips or very short drop out (the audio drop also loses musical time). I also noticed if I make a selection in multitrack while playback is going it will also drop out for a split second but stays in time. I can only change latency since I don't have any core audio or asio drivers. My realtek audio chip sucks?? I have all the newest drivers and firmware on EVERYTHING. This machine is now flying seriously. My specs:
I7 core 3930k hexacore processor with 12mb L3
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corsair h80 water cooling (temps all great)
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cooler master silent pro 850watt PSU
EVGA GTX 580 3GB
2 x Seagate Barracuda ST2000DM001 2TB 7200 RPM 64MB Cache SATA 6.0 Gb/s 3.5 in RAID 0 on Intel controller (SATA RAID mode in UEFI BIOS)ports 4 and 5, GPT Basic Disk, 128 sectors , and 64K Allocation Size
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system hibernation off
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Page file manually managed on one of the seagates on the marvell controller (not the raid) on its own partition first thing created on the drive
on that same drive I have the mp3's I used in the Audition session .
I have Audition using the Raid 0 for the temp.
The session was a multitrack with 3 different mp3's on one track cut down and crossfaded only 4 or 5 cuts total I threw on a reverb from audition for shitsandgiggles
the problem happens sometimes anywhere, but always when:
letting the track play for a indeterminate length generally more than 20 seconds then right after the cut (and switch to different mp3 file) a slight pause dropout
...but If I playback from insertion a little less ..say 5 seconds from cut... immediately afterwards... no dropouts
then sometimes playback just stops for no apparent reason @ anywhere
Also, during playback if I change the parameters of the reverb plugin..it takes about 1.5-2 seconds until the playback of the new parameters can be monitored.. Is this the normal for cpu based audio recording as opposed to DSP chip based (my old protools tdm)
I didn't know if I am going to have to buy a sound card with core audio or asio drivers to solve this???
My Goal is to leave my MAC 9.2.2 dual 1.0gHZ with 1.5gB ram and a scsi iii atto card with 24mixcube (one mixcore,two mixfarms)Pro Tools 5.1.3ce purchased in 2002 that records 16 Tracks flawless no glitch no dropout with realtime effects multiple reverbs ,24bit 48k while playback another 16 tracks.
I would like to be able to record 16 tracks @ once.. maybe MOTU 896 Mark3 hybrid and a MOTO 8pre... maybe playback 8 tracks while recording 16 and listening to all 24??? With some realtime dsp processing (non destructive)...
What the heck? Premiere Pro is smoking 4 layers of avchd with color correction and realtime dissolves and titles and overlays smooth like butter..
I can't even get 3 mp3's on a track without dropout out of Audition. I've tried every choosable latency in preferences. Can I get ASIO drivers for my realtek onboard HD audio chip?? Am I asking too much from my system for the 24 track count with no glitches or dropouts?? Should I put the system page file on another drive than the drive the audio is residing on (or audio would be written to)? I have most startup processes disabled through msconfig..should I get some kind of process killer and if so, the name of a good free or inexpensive one?
Thanks in advance for any feedback!

Okay, I have no specific fix for you but I can tell you that my 4 year old laptop (nowhere near you in terms of spec) frequently records at least 16 simultaneous tracks (I've tested up to 32, my theoretical maximum but never done it in anger). I also frequently mix sessions in the 24+ track range.
Now, a few general system killers: having any form of wifi enabled can be a pain, as can having anti virus software turned on. I completely shut those down before doing any serious audio work. Beyond that, there are numerous "optimise your computer for audio" sites full of tricks. It's worth working through the hints.
Second, you mentioned reverbs. Which one(s) are you using? Some of them are a much higher processor load than others--I can't really use "full reverb" in realtime mode (but can either apply it in destructive mode or add it in multitrack and freeze that track). Studio reverb is much more forgiving. There are other processes as well that can be problematic in real time--most of them give you some kind of warning though.
Finally, I'm not clear about what you want to do with your Realtek piece of rubbish (not being nasty, my laptop has the same). I can use it for basic playback if not hooked up to one of my "proper" cards but I don't know of any ASIO drivers for it. This means that the buffers have to be big and latency high when I use it--but for simple playback (I'd never use it for recording) this isn't an issue. However, one workround that might help you would be to download Asio4All. This isn't a true ASIO driver but, rather, an ASIO wrapper for MME devices. However, it's got a lot of people out of trouble with things like this.
...and a final finally: you asked about a process killer. I don't use it often, but, when I need one, I've had good results with one called "EnditAll". It takes a bit of setting up but seems to work well.
Hope at least some of this waffle helps.

I have bought a new airport express and using it with my macbook (iTunes 10.2.2). I have joined an existing network for internet in my home and with that i am trying to play the music via itunes but there is audio dropouts every 60 secs or so. any soln ?

I have bought a new airport express and using it with my macbook (iTunes 10.2.2). I have joined an existing wireless network for internet in my home and with that i am trying to play the music via itunes but there is audio dropouts every 60 secs or so. I am using a set of speakers from kenwood connected to the airport express. The operating system on my macbook is mac os X 10.5.8. i am sure it is not a problem of streaming music online because i have even tried playing music which are stored in my macbook.
Is there any problem with the setting in itunes or quicktime ? Kindly reply...... I am waiting for your valuable suggestion.
Thank you a lot in advance.

I am shocked to have found this same AX audio dropout problem starting TODAY, every few seconds the audio just drops for a couple seconds and then resumes: Latest software versions of everything. No iPad, iPhone or Touch. Internet hardwired to D-Link DES1105 (1000baseT Switch) hardwired to new 80211N AX, AX optical to stereo, AX Wi-Fi internet to basic 1st-gen MacBook operating at 80211G, and an older 'G' AX extender at the far end of the house, away from all this. The MacBook streaming iTunes is usually 12 feet from AX. I've used this setup for years of trouble-free AirTunes / Airplay until today. Today I also found 2 very reliable fixes and 1 way to force a dropout, but first, I read some posts and tried ALL following settings one-at-a-time and restored them ALL because NONE of them helped: Turned off IPV6. Streamed to multiple speakers 'Computer' and 'AX' (restored to just AX). Turned off 'Ask to Join new (WiFi) Networks'. Turned off Bluetooth (can't live without Magic Trackpad, so glad that wasn't it). Here's my discoveries: Lo and behold, each time I click the Airport icon in the Menu (you know it shows you've got 4 bars from AX) when the status switches to 'Looking for Networks' for a second it CAUSES the AX audio to drop out for a couple seconds (it never did that before today.) iTunes still playing, streaming, AX laser still lit, but the 'PCM' light on stereo and the sound GOES OUT EVERY time I click the Airport icon in the menubar, just like the regular, annoying dropouts. So, to reduce traffic I quit Safari (3 tabs, no streaming, just Gmail, Google, and Netflix browsing). Lo and behold, the dropouts stopped altogether. No other Web apps going (not iTunes Store, Genius, Ping, nothing), so I launched Chrome to the same 3 tabs and the dropouts HAVE NOT RETURNED. That's right, not only did simply QUITTING SAFARI cure it, and Chrome doesn't contribute to it, but I can demonstrate it just by forcing my Airport to re-scan. Works for me, written using Chrome. The other reliable fix is to hardwire MacBook to the Switch. This is obviously not ideal, but Airplay audio doesn't drop out over Ethernet. Also, in all my tests, it made no difference whether iTunes did the streaming, or Airfoil did.

Audio dropouts since updating to iTunes 8

Had a stable working iTunes to Airport Express to stereo connection going for at least two years until I installed iTunes version 8 shortly after it came out. When I updated to version 8 I started receiving an error message and I had to upgrade the firmware on the AX to fix that. Ever since that time I haven't been able to use iTunes for more than 30 minutes or so without audio dropouts. Nothing else in the environment changed.
I have tried these fixes (some suggested in other posts) and they all failed:
1) Switched from optical to standard RCA cables between the AX and stereo.
2) Used Airport Admin Utility to enable Interference Robustness. This made the problem worse.
3) Switching to multiple speakers.
4) Leaving the Airport Utility program OPEN.
5) Removing interference from 2.4Ghz phones
My set up:
Windows XP Pro on 2 Gb RAM
iTunes 8.0.2.20
AX 6.3
I live in the country 200 yards away from the nearest neighbor.
I was hoping that Apple would come out with a fix. Am I waiting in vain?
Been forced to go back to my 400 disc changer, but it's not the same.
HELP APPLE

Did you try disabling WZC and using your wireless manufacturers drivers instead. This worked for me - see details in http://discussions.apple.com/thread.jspa?threadID=1715679&tstart=0

HT1386 I have a brand new Ipod classic (Christmas 2012-13), a newish laptop (2012) and have downloaded the latest version of iTunes. However, despite the ipod being recognised by the laptop/iTines, telling me it is synchronising, it actually won't synch.

I have a brand new Ipod classic (Christmas 2012-13), a newish laptop (2012) and have just downloaded the latest version of iTunes. However, despite iTunes working fine on the laptop, the ipod being recognised by the laptop/iTunes, telling me it is synchronising, it actually won't synch. I have reset the ipod, tried different USB ports, restarted the laptop, and uninstalled / reinstalled iTunes, but still not working. Can anybody help ?

Well, I don't know if that's a software or hardware problem. You should take it to Apple Genius Bar or send it to service center. And one more thing, Its not synch...... Its Sync... Just saying... It would help if you send pictures of the problem. Such as the screen of iTunes saying it's syncing. It will help everyone and me...

How do I point ITunes to the new firmware 3.1 update

Here is my issue, due to connectivity I am downloading th lastest 3.1 update at my office and will bring that update to my home PC, (My service provider will never be able have me online for a 300 meg file)
Here is the question how do I get itunes to see that new file, that I will bring home on a flash drive??
Thank you
Mike

You can connect your iPhone to your work computer and prevent automatic syncing one time, without changing settings: Open iTunes. Then, as you connect iPhone to your computer, press and hold Command-Option (on a Mac) or Shift-Control (on a PC) until you see iPhone appear in the sidebar.
Then you can use iTunes summary pane to check for update. One of the choices is to download but not install. Then, disconnect your iPhone.
The iPhone2,13.1_7C144Restore.ipsw file will be found in the user account/Library/iTunes/iPhone Software Updates on a Mac
Windows XP: "\Documents and Settings\[username]\Application Data\Apple Computer\iTunes\iPhone Software Updates"
Windows Vista: "\Users\[username]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates"

160 Gb Classic - Audio dropouts, gaps on gapless albums with apple lossless

Dear All,
Since getting my new iPod Classic 160 Gb iPod Classic, I am experiencing audio dropouts that last between one and two seconds. They aren't frequent, occurring maybe one every hour or two of audio playback. They appear to be very random. If I play back the same track after having a dropout, it plays fine and doesn't happen again in the same place. This doesn't appear to be connected to my moving or shaking the iPod around, as it will happen when I am sitting down and perfectly stationary. Also, I don't think it is related to a bad earphone connection, as I a have played the iPod with several pairs of new and/or high quality earphones. More info: Most of my files are Apple Lossless and content is primarily regular music albums. Of note, this is the second 160 Gb iPod I've had with the same problems! The first one I brought down to the Apple Store in Ginza, Tokyo and they replaced it in the blink of an eye after I explained the same as above.
Prior to the 160 Gb Classic, I have owned 1st, 3rd and 5th generation iPods (plus a 2nd gen. Nano and shuffle). The 5th gen. 60 Gb was playing the exact same audio files and never had any dropouts.
I have reset the Classic and reinstalled all my music files (with the most recent ipod software 1.0.2 and running iTunes 7.5) twice now, but the problem remains. I am now thinking of taking one of two possible routes of action. a) go back down to the Apple Store and try to get another iPod replacement (and hope and pray that it doesn't experience this problem) or, b) change all my music files to something like 192 kbps and hope (and pray!) the iPod can handle the smaller file size without the dropouts. At the moment, I am leaning towards going down to the Apple Store as it would actually be the less time consuming of the two for me.
What do you wise people out there think? Exchange iPod or downsize my audio files? Or, does anyone have another suggestion or recommendation on how to resolve this issue? Thanks for any assistance.
To add to this, I have also noticed that several of my gapless albums (DJ mix CD's like those by Global Underground), no longer play consistently "gapless". Sometimes it will pass smoothly between tracks and other times there will be a small pause/gap. No doubt, I have checked the gapless album box and selected yes, in the album get info section for all of these albums, but still problems remain. Any suggestions would be greatly appreciated.
Again, my previous iPod, 5th gen. 60 Gb had none of these problems with the same files. I am really happy with the 160 Gb capacity of my new classic but feel a bit let down with these problems I'm having.
Regards,
Peter B.

Thank heaven! I thought I might be the only one.
My situation almost exactly mirrors your own. My first 160GB classic suffered from sudden dropouts, apparently random and almost impossible to replicate in any predictable fashion. For example, I'd start playing an album and would hear a one or two second dropout in the second track, but in attempting to replicate the situation exactly (as in, powering down the iPod, powering it back up and starting over from the first track of the album) I'd find that the fault didn't recur. Restoring and reloading made no difference at all.
So I took it in to the Apple Store and had it replaced, loaded the replacement up with music and was dismayed to discover myself facing the same problem. I too have had several iPods which were loaded off this same library, and none of them ever gave trouble in this fashion.
I think the issue might just be the size of the files in our libraries. The bulk of my files are at 320kbps, and you mentioned yours were mostly Lossless - could it be that the classic has problems dealing with large files? It's a very frustrating issue, since the audio quality of my classic is so much better to my ears than that of my previous iPod 5G.
I recommend that you take the iPod in and take them to task about it. That's certainly what I'm going to do - I really don't want to re-encode all my music, especially considering that I bought this iPod due to the burgeoning size of my library, and re-encoding would defeat the point. Plus, since it has better sound it sort of deserves to be loaded with larger files. I just hope this isn't an irremediable issue, which I'm starting to suspect it might be, since your iPods were obtained in Japan and mine in the UK. I'll continue posting as this unfolds, and I hope you'll do the same.

Audio Dropouts on calls after v.1.1.4 update.

I installed the *1.1.4 firmware* update the day it came out...since then, I'm having consistent audio-dropouts during calls.
It happens for anyone that I call, about *every 4 to 6 seconds*, I get a blip of silence, and makes conversing very difficult.
I tried the "Restore" option in iTunes, it backed up my phone first, then went to factory defaults.... Even before restoring my data, I made an outgoing call by manually dialing and got the same audio problem.
Any ideas out there?
thanks in advance,
-h

If you have a friend that has a computer with iTunes on it, I would recommend Restoring your iPhone on their computer incase the firmware update through your computer might have not gone through correctly.
Or take it to a Genius Bar at a nearby Apple Store and have them restore and make sure the software is updated on your iPhone for you. Sometimes it just helps when they use their computers for updates.
I've noticed others having issues with updating their firmware as well on their personal computers, but when they take it in to the Genius Bar and they restore/update with their computers, it seems to work fine afterwards.

Airtunes audio dropouts!

Hi all.
I've read alot of posts regarding audio dropouts with iTunes. Below is my setup so i can explain my problem:
I've created a WDS network, with my main hub being a time capsule, and then 3 Express hubs (2 old, 1 new).
I hear alot of people saying its due to iTunes 8, that this problem has really gotten serious. Sometimes i can play music for awhile maybe an hour or so before a dropout or loss of audio. As usual the computer keeps playing but nothing is coming out of the other express hubs.
I've tried numours things, i've changed channel frequency on all hubs, its generally made it worse, so i've kept it at 11, there is only 1 other person with a week signal on the same channel 11.
I've changed the settings of my hubs from being remotes to relays, has not really helped.
All the software is up to date. I've tried changing security from WPA to WEP. I haven't tried turning of security as i would prefer not to (perhaps i should test this).
I've cleaned cache and repaired permissions, turned off iTunes DJ which some people suggest but has come to no success.
Does anybody still have this problem or has come up with a working solution for this drop in audio with mac airtunes multi-speaker setup?
I'd like to find out how many people have this problem, as we shouldn't have to pay for a product that is faulty or is falsely advertised like it is.
Any help or further advise on how to fix this problem would be fantastic. When airtunes does work, it is fantastic.

Ok, just for the purpose of testing, i've changed my whole network from a WDS to just a regular standard one.
With my Time-Machine still as my main hub, with 2 express units set to, "join existing network", and the other set to, "Extend network", with the allow wireless clients turned off (this is for my xbox 360).
Hmmm, i'm not sure if it has helped in anyway...
I've had one very brief drop-out, but it seems to be handling better...
Futher testing will proof this, as my WDS network started out fine too.

ITunes audio lag

I recently bought a new computer (less than a month and a half ago), running Windows 8, and installed the latest version of iTunes and Quicktime (iTunes 11.1 and Quicktime 7.7). My computer is hooked up to a small HD TV monitor using an HDMI cable. I bought an HD movie throught the iTunes store yesterday, and played it through iTunes. However, the audio and video will quickly become out of sync, usually within about 15 seconds. I have updated my NVIDIA disply driver and also my audio driver (IDT audio driver), to no avail. I have also made sure that my computer audio playback is set at 16 bit/44.100 hz, and that iTunes audio playback is also set at 16 bit/44.100 hz. No of this has helped. I will play the video, and within 10-15 seconds the audio is lagging horribly behind the video.
I have also tried to play the movie in Quicktime by clicking on the movie in iTunes, showing the movie in windows explorer, and then clicking open with Quicktime. However, when Quicktime opens, it just sits on a grey screen. I click play, and the timer for the movie starts, but the screen just stays grey the whole time. My Quicktime audio playback is also set at 16 bit/44.100 hz, for what its worth.
I have literally spent an entire day trying to look up a solution for this problem, and have found absolutely nothing that has helped. If ANYONE has an idea of what I can do to alleviate this problem, please let me know. I am at a total loss to figure this out. I am somewhat familiar with computers, enough to run through some basic fixes, but I am by no means a computer whiz. I have also contacted Apple about this problem, and got back the typical response of "update my drivers etc etc etc." It seems like nothing on the Apple website has instructions for possible remedies to this for Windows 8, so as I said I am at a total loss. ANY HELP WOULD BE APPRECIATED!!!!

demand a refund, I had this same problem 6 months ago...gave them another shot recently and apple still hasn't fixed the problem

I have copied my iTunes library onto a new computer, but when I play back the songs there seems to be random "miss" or "drop out". No probs with old computer, just the new one. I'm onto my third new computer - same problem. Any suggestions please?

I have copied my iTunes library onto a new computer, but when I play back the songs using the new computer, there seems to be random "miss" or "drop out" during play back, similar to a small scratch on a vinyl record. Although when I play the same song over again, the "miss" occurs in a different location during the song. No probs with old computer, just the new one. I'm onto my third new computer - same problem. Any suggestions please?

You don't say which version of iTunes you are using, but the symptoms you describe have been encountered by some users with the 64-bit version of iTunes 12.1.
There is an alternative version for 64-bit editions of Windows here:
iTunes 12.1 for Windows (64-bit — for older video cards)
that seems to address the most of the playback issues that some users have been reporting with the full 64-bit version of 12.1.0.77 - including problems with Bluetooth speakers where either sound is degraded or completely absent. The alternative installer here is the same architecture as most previous "64-bit" versions of iTunes, i.e., a 32-bit application with a 64-bit installer. The "for older video cards" label appears to be something of a misnomer as some people have reported that this corrects problems found on current / high-spec systems.
Some users have reported that after installing this alternative version it is necessary to adjust the "Play audio using" selection (normally to "Direct Sound" rather than "Windows Audio Session", though this may vary based on your audio hardware/drivers) in Edit > Preferences > Playback to restore glitch-free audio (one part of the reported symptoms is that the "Direct Sound" choice isn't available, usually in Windows 8). It may also be necessary to ensure that your Bluetooth speakers are active and selected as the default audio device before you run iTunes.
If this doesn't address the issue, you may want to think about reverting to iTunes 12.0 - see Turingtest2's notes on Troubleshooting issues with iTunes for Windows updates for steps needed to completely remove all installed iTunes components, and for links to the 12.0 installers.

New firmware update doen't allow me to see all files in iPod library...

I have a 5G/ 60GB iPod, updated to the new firmware, and I have found that now there is no way to see a "Library" style depiction of all the files on my iPod, ala the iTunes "Library" category. I have podcasts that I manage manually which do not display as "Podcasts", and the easiest way to add and delete them (sometimes I duplicate them by mistake when adding from my other computer at work)was from the "Library" style view when the iPod device name was selected. Now those podcasts do not appear in the "Music", "Movies", "TV Shows", or "Audiobooks" categories. I CAN view them by date in the "Recently Added" playlist, but duplicates cannot be deleted from this playlist. I there a "View all Files" sort of option I am unaware of, or any other solution (3rd Party) to access/ edit/ remove these files?
5G/ 60GB Windows XP Pro 2.1
5G/ 60GB Windows XP Pro Firmware 2.1

The checking and unchecking of songs is done in iTunes, not on the shuffle. And that may affect what is loaded in the shuffle during automatic syncing. So first check what is actually loaded on the shuffle.
If the iTunes sidebar (along left side of window) is not visible, from the iTunes menu bar, under View, select Show Sidebar.
In the sidebar, find your shuffle under DEVICES. Click the small trianle to the left of the shuffle name to drop down its content list (indented below the shuffle). Click on Music there. The list of songs currently on the shuffle is shown to the right. Are the songs that do not play on that list, or not on that list?

Unable to update to ios 5 on windows 7. please can someone help me i have tried everything? i deleted itunes and downloaded the new version when i plug my iphone 4 in it does a back and then I try and update the software it extracts error 3194

unable to update to ios 5 on windows 7. please can someone help me i have tried everything? i deleted itunes and downloaded the new version when i plug my iphone 4 in it does a back and then I then everything runs normal and it extracts and then i get an error code at the end 3197. had the iphone for two months and its new.
Please can somene help me, i am currently on version 4.3.3 (8J2)
Modem Firmware 04.10.01

followed someones instructions and it has worked ios 5 is now working on my iphone 4

External display at 1920x1200 causing audio dropouts

I've got my Macbook hooked up to a Samsung Syncmaster 245B+ 24" monitor running at 1920x1200 with the Macbook in clamshell mode, I bought the monitor a couple of weeks ago and ever since I've been having problems with audio dropouts, both with the onboard soundcard and my external Presonus Firefox Firewire audio interface.
It seems the CPU is being overloaded at random, usually when there is some kind of graphical happening in a web browser for example. If I load up a page with a lot of graphical elements on it, sometimes the audio cuts out for a few seconds and then comes back, even then it can come back distorted. I can usually force these dropouts by briskly resizing the browser window, which makes the CPU usage level increase somewhat and thus the audio cuts out.
I first of all put this down to the Macbook not being able to display at this resolution sufficiently, but I have seen no other complaints from people running a 24" external. What's even more concerning is that I can switch the external down to lower resolutions (ie 1024x640) and still get the audio dropouts, which should not be happening as the Macbooks own display runs higher than this and I never get a problem when using it that way.
I've tried creating a new user account and the problem persists. Tried repairing disk permissions (although I knew it would make no difference) to no avail. I suppose the next step would be a complete reinstall of Leopard, but obviously would like to avoid this.
Does anyone have any suggestions as to what the problem could be? Do you think it's just the Macbook in general not being able to handle this monitor or a specific problem with mine?
I hope I can get this sorted, it's really off putting having music dropouts while I am working...
TIA,
Alex

Next time is happens, try unplugging the external monitor, but only the external monitor. Leave everything else plugged in, including any peripherals, like the Personus and also any attached USB devices. If the problem persists, then start unplugging the peripherals one-by-one.
Generally a display should have no bearing on sound since the GPU (X3100) is completely separate from the CPU where sound is managed.
You haven't said anything about your MacBook's configuration but maybe there is an insufficient amount of RAM for the number of processes running. That's another possibility.

Audio Dropouts on H.264 Quicktime movies playing from CD ROM or DVD ROM

I've been consistently having trouble getting H.264 .mov files saved on a CD-Rom or DVD-ROM to play back smoothly on Windows computers. The files will open, but there always seems to be sporadic audio dropouts, every 5-10 seconds the audio will drop out for half a second or so. This doesn't appear to be affecting the video.When the files are copied to the hard drive, the problem goes away, and the problem isn't present at all when playing back on Macs (regardless of whether the file is on a disc or on the HD).
I've read elsewhere on this forums that this is perhaps a data-rate problem, but this really doesn't make any sense to me, seeing as these are highly compressed, very small files (5 fps on the video, audio is AAC mono, 32kbps). Unless my understanding of data rate is completely backwards, a DVD Video or Audio CD would have a much higher data-rate. Seeing as Macs have no problem with this, I'm inclined to think it's some sort of problem with Windows' ability to handle AAC audio. If anyone has any experience with this, and/or ideas for a solution, I would greatly appreciate some feeback.
Thanks!

If the problem goes away when the file is copied to the hard drive, then the problem is almost certainly with the data transfer rate from the CD/DVD drive. If the problem were with Windows decoding H.264 and/or AAC, the problem would also appear for files copies to the hard drive. H.264 is a pretty data-intensive format, so it could easily exceed the available data rate of a CD or DVD. (note that file size will make no difference; it's the data rate, which comes from a combination o the image size of the video and the compression of the video and audio tracks) that's the only factor).
Run QuickTime Player, open one of the videos, and open the Movie Inspector for the movie (Window -> Show Movie Inspector). Then take a look at the data rate and compare that to the data rate of your CD/DVD drive. If the drive's rate is lower, you have your answer. If it shows that it should be able to handle the data rate, you may need to update or replace the drivers for your CD/DVD drive and/or update the drive's firmware.
Hope this helps.

Itunes Audio Dropouts despite new firmware 6.3

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