Audio Pops and Cracks

I was just curious if anyone else was having the same issues I am with my audio.
When listening to music in iTunes and running any memory intensive program such as photoshop and lightroom, I get random clicks and pops from the music. I believe I have the latest audio drivers. I am also running Vista 64 with bootcamp. I have 9gb of Ram installed so I know it is not a memory thing.
Any ideas or suggestions?
Thanks,
Toby

Are you guys using a firewire audio interface? I'm curious, because I am, and I have similar problems that I don't appear to have when I'm not using it (though admittedly I don't use the internal sound for long periods of time).
Anyway, if I'm using two audio apps, i.e. Logic and iTunes, playback quickly becomes distorted and lo-fi, or if I leave iTunes running for a few hours, the same will happen. Of note, is that during playback, if I've been surfing in safari, and safari crashes, during the crash audio will become very distorted, and will remain that way until I reinitialise the interface (turn in off and on).
My interface uses os x drivers., so (in my not very reliable opinion) it has to be a problem with the OS somewhere..
Do any of you share any experiences with me on this issue?
Thakns, Ed

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Stuttery audio, pops and clicks since updating

ok, i've just updated to the itunes (7.0.2) and it's already giving me a headache.
Every time i'm playing audio i get lots of pops and cracks. I've noticed that if i look at my cpu usage chart the pops come along at exactly the same interval as i get cpu spikes. (about 50% cpu usage). I can't think what's going on.
All my drivers are up to date, direct x etc., and i've checked out that article that attempts to help you if you have crackley audio - nothing on it helps!
aaaaaaah, so annoyed!
please help someone!
Luke

Good news ladies and gents, i've had some success.
I tried reinstalling directX, but this didn't solve the issue.
However, i then entered the DirectX diagnostic utility just to check everything.
(if you go to Start->Run or press Win-R on your keyboard, and then type dxdiag it'll come up)
I noticed that under the sound tab, the acceleration level slider was set to 'None'. (IMPORTANT: this is a different control to the one found in windows audio settings) Having wacked the slider up to 'Full' and run the 'test Direct Sound' app and closed everything itunes plays without glitches.
I still however get large cpu spikes. Ii've got a reasonably fast computer so i shouldn't really. Get it sorted apple!
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OS 10.4.10 Update Causing Audio Popping (AND HUM) Issues:

OS 10.4.10 Update Causing Audio Popping (AND HUM) Issues:
The problem on my Intel Mac mini with external Klipsch speakers (two mid-range/high and a subwoofer) is REAL obvious as the system emits a hum like a Spinal Tap amplifier turned up to #11 when 10.4.10 powers down the audio circuitry
Then, if I play a song in iTunes, it first pops and the hum disappears right before playing.
Quite annoying. I restored the mini from a recent backup to 10.4.9. Problem gone.
I'm glad I test updates on the mini before applying them to my Intel iMac 24. I guess I'll just hide & watch what happens before doing any more updates.
Here's what I sent to Apple tech support:
Guys/Gals (OS X Engineers):
Concerning the Snap, Crackle Pop Audio problem in the 10.4.10 update:
Please. Just do the right thing and fix the audio.
There is no need to power cycle the audio subsystem to save .0005 amps on the laptop line.
And then to make your Mac mini/iMac/other desktop users have to put up with it when using AC power is ridiculous.
Put the audio subsystem back like it was in 10.4.9 and let the laptop battery freaks looking for mini-amp savings get a "work-a-round".
Crikey!
iMac 2.16 Ghz Intel Core 2 Duo 2GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair
Mac Mini 1.83 Ghz Intel Core Duo 1GB RAM Mac OS X (10.4.9) 20 Years of Microsoft-Induced Grey Hair

Libby,
Backup is unable to make a restorable by Disk Utility backup. You can restore pieces of the software as outlined in my FAQ about backing up user data:
http://www.macmaps.com/backup.html
But to be able to restore a backup with Disk Utility, you need a cloning utility to have made the backup.
I suggest starting a new thread here, where someone else could help you out better:
http://discussions.apple.com/forum.jspa?forumID=752&start=0
First off, you'll get a wider audience who may be able to solve your problem. Secondly, responses to you won't confuse the original poster with solutions that don't apply to them. And thirdly, you'll know for certain whether or not a response applies to you.

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T410 - high DPC latency in ACPI.sys on BIOS update (leads to audio pops and crackles)

I recently updated my Thinkpad T410's BIOS because the fan wasn't working properly. The fan is working fine now, but ever since the BIOS update I've been experiencing severe audio pops and crackles. I used the tool LatencyMon to inspect, and the chief culprit seems to be ACPI.sys, with execution times as long as 10ms.
I've tried disabling all the power management options in the BIOS and changing everything to max performance. I've also tried disabling other various devices such as the network adapters, but nothing seems to help. Any idea?

Hi agrilledfish,
Is your BIOS 3.03?
I found a post on MixVibes regarding audio drops:
Audio drops/USB problems
You can try to disable ACPI.sys in device manager or uninstall and reinstall the software.
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Hi,
so my problems started a few days ago when some "popping" and "cracking" came out from the speakers.
It's not all the time, but like in between 3-4 seconds i can hear it. I also connected the laptop to a speaker system and the problem remained, which means that it is not from the speakers, but from the signal.
I tried to reinstall the drivers but it seems that it's still not fixed.
Also the Waves MaxxAudio 3 disappeared when i reinstalled the drivers and now can't get it back?
Has anyone an idea of what might be causing this and how to install again the Waves Maxxaudio?
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Hi
Not quite sure what could cause this sound issue but it could be possible that this crackling sound appears due to some latency problems in most cases this appears because the CPU is stressed by some processes running in the background.
I would recommend checking this using an tool called DPC latency checker.
Check if anything else is causing small DPC increases
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Does your Apple TV pop and crack during movie playback

Does your Apple TV pop and crack during movie playback

Welcome to the Apple Community.
ahunt57 wrote:
Does your Apple TV pop and crack during movie playback
No.
Does this occur with all content.

External Usb Audio Card Popping and Cracking sound with Satellite L500

Greetings,
My name is Boyan and I am from Bulgaria and about an year ago I've bought a satellite laptop from the l500 series ( i can not state which exactly is the model at the moment because my computer is not currently with me and on my user manual the only thing which is stated is that it is for L500/L505/ L500D / L505D . But by memory I think it was the Satellite L500D-ST5506 which is currently not at my dispossal because I gave it for repair for the same problem which I will state down below)
The problem with my laptop is that when I plug a Usb Audio card in my laptop I have a cracking sound when live sound is played trough the speakers/headphones from the external card. I've tried numerous audio cards and speakers/headpohnes which work perfectly fine with other computer, including laptops but the same problem keeps on showing up in the headphones/speakers of my laptop when I am using an external audio card to connect them to the laptop.
The problem is prominent only when the sound signal passes trough an external audio card and it is very annyoing since I use my laptop to create music and i've bought an expenssive audio card and speakers which can not be used with the laptop. I've tried 3 models of audio cards:
M-Audio Fast Track Pro
Behringer uca 222
and a simple external 3d sound usb audio card and the problem still appears.
At first I thought that the problem should be software and I should install new drivers although windows 7 automaticaly recognizes and intalls the drivers for the devices and I have sound in them (but with cracks and popps) so i tried using the official drivers sold to me with the audio cards but with no luck: The problem was still there. I tried finding new drivers of the audio cards on the official distributors websited and i've downloaded them but the problem was still there. Then i tried to delete every audio driver on my computer and just use the external audio card for sound but this dint help eighter. I've updated my drivers for my build-in audio card as well but again - no luck.
After that.the frist thing I did when (2 weeks after i bought the laptop) was to contact the store from which i bought my audio card and they stated that the problem may be eighter latency or high voltage from the laptop so they adviced me to try to lower the latency from the settings or to try and see if the problem remains if my laptop is only running on battery. I've tried both things and they didn't help. The audio cards worked without a problem on every other computer I've tried them on except mine. So they said to me that the problem couldnt possibly be from the audio cards .
What I did next was I gave my laptop to the official distributor of toshiba in my country so they can fix my problem. What they said to me was that the problem is caused from the version of windows which was pre-installed on my laptop and that it wasnt compitable with the audio cards (which was bizzar sounding because I've tried them on the same windows and they've worked, just on other computers). So I got back my laptop and changed my operating sistem from Windows 7 Home Premium 64bit to Windows 7 Ultimate Edition 64bit to Windows 7 Ultimate Edition 32bit and on all of those versions the problem was there: whenever I activate a Usb Audio Card and audio signal passes trough it I heard cracks and popps. I even tried isntalling Windows XP but the laptop wants spesific SATA drivers for the installation of Windows XP which although i did find - they didnt help me install XP and I didn't want to go in to the BIOS of the computer to try to put a new one and so on because I am not so sure about that and I could lose my warranty so I said to the official repair store for Toshiba in my town to put XP on my computer to fix the problem but they can't because they are not liscened to operate with software which doesn't have a recipt for its purchase ( which i didnt because i bought my windows xp long ago and i've lost the recipt)
I gave it for repair for the second time telling them that the change of my operating system did not solve my problem and what they did was they changed the whole motherboard on my computer, stating that the build in realtek audio device on my computer is not good enough to support an usb audio card or it maybe broken and they have to change the whole motherboard because the build in card is glued to it, so they did that but my problem wasn't solved. They told me that although I am using and external usb audio card the signal still passes trough my internal one and I have to disable it so i tried disabling it trough the control panel but this did not solve the problem and i do not have an option from BIOS to disable my build-in audio card. Another thing which I thought maybe causing the problem is that the two audio cards aren't working on the same bit rate and Hertz so I set both cards to 16 bit 48000hz DVD Quality (Also tried other options on the 3 cards i have) but...the same thing happend.
They told me that this is just my luck and that the build in audio card doesn't support this external audio cards and I should had been more careful when choosing my laptop at first.
I couldn't accept this awnser for several reasons:
1) This audio cards work on lower version of windows and are supported by much older models of Realtek and much older computers (one of them was bought 2000!!!!! and my laptop is from 2010!!)
2) The guys who were fixing the problem apperantley didn't go in so deep in to my problem because they didn't know what actually the problem was they just knew that there is a problem with the audio card and the computer interacting with eachother, they didnt know that there is cracking during live play from the external audio card.
3) I can not accept the fact that Toshiba is manufacturing models with chipset audio cards which can not support a simple external Usb Audio Card. This is totally unacceptable for me and I truly hope this is not the case!
4)They didn't try my audiocards on an other laptop from the same series stating that they do not have one at their dispossal at the moment so I will go tomorrow to a local store and try the audio cards by my self on the same computer in the store.
What I did now was I gave back my laptop for repair asking for a statement of the problem in wrtting with all details of the problem so I can go to court or ask for a new laptop but I will be charged with some money because according to them there is no problem in the laptop and the problem is that my external audio cards arent compitable with the build in internal chipset audio card. If I give my laptop for repair and there is no hardware problem I will have to pay some money. I will do this but I am now mad, since this will not solve my problem and I am loosing time and money.
What I am asking here is, if you can not help me solve my problem and advice me what to do to fix it, please provide me the details of the chipset build in audiocard on my motherboard, so i can investigate if it is compitable with my external audio cards and contact the audio card dealers to ask them for their opinion. Or if you can tell me with what it is compitable with and with what not, it would be great. I personally think that this laptop should have no problems at all with running a simple external usb audio card but I am asking you, if you know something more about that.
If the problem is from the build in chipset then Toshiba is manufacturing (or at least selling) audiocards which aren't at a normal standart but sadly I cant do nothing about it except complain to Toshiba and never deal whith such productgs anymore. In the other case if this is not true, then my laptop has a problem which is different and I will have to go to court with the repair mans for not fixing my laptop or not giving a new one when I have warranty which will not be Toshiba's fault and It will in a way solve my problem.
I hope you understand how Important this is for me and I hope I resolve the problem as soon as possible.
P.S
I would like to state that I am well aware of the grammar mistakes I have made in the text below and I would like to ask for your apologies as I am not a native English language speaker.

hi i just like to say i had a similar fault though i would be surprised if it causing yours,but you never know,my fault was my laptop lid, [9 months old] it contains the mic ,and when the lid was in a certain angle crackles could be heard worse when i had my external sound card in, it was a faulty membrane [ lid to body] easily missed by engineer because it was the same angle all the time it happened,good luck, PS you English is very good
Message was edited by: sido1

Audio pops and crackles on MacBook Pro

Help!!!
I have a Late 2011 15' MacBook Pro, 256gb SSD, 750gb (7200) and 16gb RAM. When listening back to music after about 30 seconds to a minute the sound starts to randomly pop and crackle. I've go to find a fix for this.
I am running 10.8.4. I have already reinstalled Mountain Lion, reset the SMC and reset the PRAM. Nothing seems to work.
It doesn't seem to be a hard drive issue as it happens on any hard drive I'm playing from.
I haven't heard it using the onboard speakers. I've only heard it so far with my external speakers connected through USB. This makes me think it could be a USB problem.
Does anybody have any other suggestions? I'm going mad!!
Thanks!

I think I figured it out. I found a firmware update for my audio interface (REM - Babyface) and so far so good.
I'll post again if it comes back.
Thanks.

4.3.3 audio pops and crackles have returned!

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come on apple, get it sorted.

I think I figured it out. I found a firmware update for my audio interface (REM - Babyface) and so far so good.
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Audio problem-- converting song to AIFF doesn't stop pops and cracks!!

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i have made settings 48/16bit to match my footage.
why isn't this working? any tips?

hi david,
thanks for trying to help. i'm still having the audio problem-- the aiffs sound clean in both quicktime and itunes, crackly and distorted in fcphd.
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sybil

How do I get rid of audio pops and clicks between clips in Final Cut Pro X?

Is there a layman, non-professional way to do this? These are just video files... i don't know anything about formats of different files and all that, but i read in other posts that the files should be "uncompressed 48k something something", but i dont even know how to convert the audio(From video) that's already on my timeline to this format

Your clicks probably are related to the fact that you are using the whole clip, leaving no "handles". Handles are extra portions of a clip, before and after the portion you use in your timeline.
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I've used crossfades, exponential fades to be specific... and even when I delete them, I have issues with clips I've never used them on.
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I thought I was finished and only want to out put this cut to watch, make changes and be finished... I could really use some help on this... ugh.

well, I export it thru Premiere Pro CS4 and cs4 sends it to Adobe Media Encoder CS4.
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Hei!
Just want to report that the old and known problem with a lot of MuVo N200 units, the random popping sounds, is not completely removed by the new firmware .2.0.! The total amount of these ugly noises decreased, thats right, but a few of them are still there. Have double-checked this by rewinding and re-listening (then the noise is gone), and also back-copying to the harddisk and re-listening from there (the noises are also gone).
Does this really ugly firmware-bug ever get properly fixed?

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