Mac Pro :: Pitched Noise Coming From System / Connected To External Audio Interface?
Jan 6, 2011
just got happy about the fix for the audio / performance problem of the 09 mac pro's. Why should it be different, the next problem knocks at my door, hallelujah...
When I connect my external audio interface (apogee ensemble) to my mac pro, the mac begins to whistle...
As soon as I turn off my interface again, the whistle is away immediately . The sound is definitively coming from my mac pro and I couldn't locate the problem to a fan. I think it's maybe the firewire controller chip? When I connect my external lacie HD I have no problems at all. I have tried it on both ports on the back side with no success.
The whistle is not constantly on the same noise level. Sometimes it's away for a few seconds, it's high pitched and really annoying though. It does not matter if I playback audio or not. Nothing worked though. I experienced the whistle in the past few months sometimes but it was mostly just for a few minutes or so. But in the past few days it was constantly and it never really stopped. This drives me crazy when I have no audio playing and my room is silent !!
I have no other firewire cable (400 to 800) around to test it. Could this be the culprit also?
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Apr 14, 2004
I hope I'm not double posting. Have any of the other new iMac owners experienced weird frequencies coming from external speakers that are connected to their iMacs?
For example: I have a set of studio monitors that are hooked up to my iMac using a firewire audio interface. Whenever I'm copying data I get an extremely high-pitched frequency coming from my speakers that sounds like my hard drive spinning. Also, whenever I'm scrolling or moving the magic mouse I get a loud buzzing coming from the speakers (especially when scrolling). None of this stuff happened with my previous 20" iMac C2D. I have experienced this issue with all three of the 27" iMacs that I have gone through thus far (due to the yellow tint issue). Does this sound like something I'm just going to have to live with. All of these high pitched frequencies are driving me batty!
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Mar 27, 2009
I have a Macbrook Pro, one generation old. In the past week, it started making a high pitched noise from the upper left hand corner, near the keyboard. When I pick the computer up and change the angle, I can eliminate the noise.
Just in the past day I noticed that in addition to this high pitched noise, periodically a much louder, different noise comes from the same area, which again, if I move the computer around, I can minimize the noise.
My guess is that there is something loose in the computer, maybe a fan? Should I bring it to apple? My computer has been running pretty slow lately, could this have anything to do with it?
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Dec 26, 2010
This is my first post, and I apologize as it's a little long. I just wanted to get the whole story on the table and clarified.I've had one of the new Aluminum 13" MacBooks (2.0GHz C2D) since Christmas Eve. A few weeks ago, it accidentally fell off my desk at work (not a far drop , but far enough for my heart to stop for a few minutes) when I got tripped up in the power cord under the desk.
For all intents and purposes, the MacBok seemed to work fine. I had one of our IT staff, who happened to be a trained Apple repair tech, take a look at it; the only real damage was that the display hinge had been knocked a little out of alignment. Just ot be on the safe side, I took the machine to the Apple Store, where they told me not to worry about attempting to get the hinge fixed (because I'd be paying a lot of money for such minor work), and the Genius sold me a hardcover plastic Speck case for the MacBook.
While the Speck case certainly looked nice and madethe already sturdy laptop feel sturdier and "protected", I was a little concerned about the amount of heat the machine was giving off within the case. On Sunday, I unplugged the machine from the MagSafe charger for a few hours and left it closed in sleep mode. When I woke it back up, the fan on the left continually gave off some sort of high-pitched whine whenever the computer was in idle mode.
I Googled, searching this site and others, and read about the "CPU whine" in the previous generation MacBooks and MacBook Pros. I also saw where a few people with new Aluminum MacBooks were having this same issue or something similar:
URL
It seems to only make the noise when the computer is running off of the battery - plugging in the MagSafe charger makes the noise quiet 85% of the time (I've found that plugging, unplugging, and replugging will not stop the whine from occurring).
I tried installing QuietMBP as was recommended in some posts, but the only setting that will stop the computer from whining is the "highest" setting (that is, allowing the processor 0 seconds of idle time), which causes QuietMBP to eat up 30% of my processor usage in Activity Monitor and to start the fans going (and, presumably, to significantly lower my battery life).
I don't know whether all of this was the result of the MacBook falling, from it overheating in the case, or something that "just happened". I set up an appointment with the Genius bar for today at 4 PM, but Idiscovered another odd occurance when I set up a new account for the Apple Store (rather than give them my password)
The noise never happened under the new account. Never. I left the machine idle until any and all initial processes were done. No noise. I checked Activity Monitor for stray processes. None. And no noise.
Now I'm bewildered. Could something have gone wrong somewhere in my account, leading to a corruption of a power management utility or process? I'm not canceling my appointment, but I am going to try a few things before I leave. I've already repaired disk permissions, and I'm about ot reinstall the 10.5.6 OS X combo update. Should I try to reset the PRAM too? What other options should I be looking at?
Or should I just wait, and let the Genius Bar folks look into it? As a note, I'm aware I may have to pay for any repairs because they may or may not blame them on the MacBook having dropped (despite two to three weeks passing between the fall and this issue arising), and I'm okay with paying for reapirs (though I will try my best to argue my case, of course).
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May 14, 2012
I'll be using the Air and all of a sudden there will be static or electrical buzzing coming out of the right speaker on my 13" MacBook Air. It's about 16 months old.
Info:
MacBook Air (13-inch Late 2010), Mac OS X (10.7.3)
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Jun 24, 2009
I am using iTunes with a Tascam US-122L audio interface. It worked perfectly fine until yesterday evening, and now iTunes absolutely refuses to play any music when the Tascam is connected. I click a song title and the diamond slider does not move, the song stays at 0:00, and the "play" button doesn't change to the "pause" button. It seemed to have started doing this after I exported a song into iTunes from Audio Hijack, which I downloaded to capture some audio from Logic Pro.
I've tried everything, from restarting my computer, to reinstalling the Tascam drivers to reinstalling iTunes.
iTunes works just fine except for the "playing songs" part, which is it's major selling point. It works perfectly fine when the Tascam isn't connected.
I've heard of a lot of people with similar problems but none of the solutions I've seen have worked. Anyone got any ideas?
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Dec 20, 2010
I just got my 2.0ghz Alu Macbook a few days ago and everything works perfectly well, the thing is that after day one the magsafe started to emit a low pitched electrical whistling noise. It tends to be there a few minutes after booting into the OS and then it turns down to almost unhearable, but I experienced it returning after a few hours of use and then disappearing again. If I move close to the escape key I can hear a crackling noise emitting from the magsafe.I'm not trying to be overly nitpicky or anything but I read somewhere that if it's doing that it would be a faulty Mag-Safe board or something.
Does any one you guys know anything about this? I have the 14 days to return it as I bought it online from the Apple Store so if it's a faulty part that might die/break/ cause problems later I might have to.
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Mar 2, 2008
Just got a new 2.2 MBP delivered to me yesterday. Didn't seem to have any problems at all until about an hour ago. I just began hearing a metallic "plink" noise every few minutes or so. Its not a click or a tick but more like a hollow plink. It comes at random intervals but sounds like it may be coming when the hard drive(?) or something inside the machine spins.
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Aug 19, 2010
I have an Audiobox USB audiointerface with KRKROKIT5 speakers and must turn up or down the volume on the interface. the Keyboard button wont work.
But my father uses Bose speakers but can do both! However, he does not use an audio interface.
Can I get my imac to do both? And if so, is this a good idea with such good speakers? Is the keyboard just turning it up digitally?
I only ask because it can be annoying reaching up over the speaker to turn the nob instead of just hitting a button on the keyboard.
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May 12, 2010
Today I connected my Mackie Onyx Satellite Firewire audio interface to my 2.4 Ghz 13" Macbook Pro for the first time. After it had been running for a while, I looked at iStat Pro, and it reported a CPU temperature of 67C, which is about 15 to 25 degrees hotter than this machine usually idles. Now I've looked around a little bit and found that it's a known issue and associated with the Agere Firewire chipsets. Is there any solution for this? Does it make a difference if you use a daisy chain setup with an external hard drive in between the computer and the audio interface, or a repeater cable, or anything of that nature?
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Apr 2, 2012
I just bought a pair of the Rokit 5 external speakers. When I plug them into a Mac Pro (Tower) I get a high-pitched hum from the speakers each time I try to play a sound. So if I go into System Preferences/Audio, and I try to play a sound, the high-pitch is heard as the sound plays, and for a second or two after, then it goes away, and is heard again each time I try to play a sound. Same with when I play something thru iTunes or any of my audio apps.
If do the exact same thing playing from a Macbook, I do not have that problem at all, the sound is nice and clear with no high-pitch sound.
I have the speakers plugged in using 1/4 inch jacks to an external sound card (MBox), and this audio card is plugged USB into the Mac.
Info:
Mac Pro, Mac OS X (10.6.8)
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Feb 1, 2009
I have a 1.86ghz 128GB SSD Rev B Macbook Air. The first one I had made a high pitch whining noise when the processor was idling or under light load. It was a very very high frequency noise, and you could only really hear it when the room was totally quiet - or unless you put your head near the top left side of the keyboard (where the CPU is located). A bit of googling and it seemed that older Macbook Pros also seemed to have had this exact problem.
I took it to the Apple Store and a Genius there took it back and said he could hear it as well. He offered to go through the repair process but since that would have taken awhile, I got an exchange instead from where I bought it from. Unfortunately, this new MBA also makes the same noise but to a slightly lesser degree (though it's possible that the frequency range isn't as high so it's not as piercing... hard to tell though).
Since this is my second RevB Macbook Air with the problem. I realize most people have lower noise sensitivity than me, so you might not notice it unless you place your ear to the top left of the keyboard. (And just to be clear, this is not a fan noise or a noise from the SSD - which don't make noises anyways. I am 100% sure this high pitched noise is coming from the CPU or somewhere on the logic board.)
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Aug 17, 2010
If you're having this problem, try adjusting your brightness. I was experiencing this issue today, and depending on where my brightness slider was... it got worse, better, to non-existant.
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Mar 15, 2008
So I just got my Mac Pro a few days ago... and actually didn't get it setup until tonight (long story), but anyways I've noticed something rather odd.
If I have my external HDD connected to my Mac Pro it makes a clicking noise when it goes into Sleep Mode or even when I shut it down. It's kind of like "click, click" pause "click, click" and this repeats until I wake it from sleep. The HDD is connected by FireWire 400 and everything is fine when the computer is awake, and when I disconnect the HDD and put the computer to sleep everything is fine.
Anyone have any idea what's going on here? The sound seems to be coming from the top portion of the machine.
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Oct 1, 2009
Sometimes I lift and carefully move my 17-inch MBP a short distance to another flat surface without putting it to sleep mode, it starts making really loud mechanical noise when I put it down, so loud that people in the same room can hear the noise and I can feel vibrations too! What causes this? Where does this noise come from? Is my MBP defective?
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Oct 22, 2007
iMac CD 1.8 here. W/e using my iMacs internal Mic I get a really high pitched noise on the recording. I'm assuming its from the computer. Is it normal or should I get it fixed?
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Jul 14, 2008
Has anyone else had problems with an old G3 Pismo making an annoying squealing noise when plugged into a charger? There's a lot of noises mentioned in mac/apple forums but none of them relate to this one. Here's what it is not:
It's not coming from the screen or the fan or the speakers (it's under the keyboard). It's not low or slightly annoying (it is a loud squeal). It happens only when the power adaptor is plugged into the laptop.(it used to cease after I unplugged the power adaptor and plugged it back in three times; now that solution doesn't stop the noise anymore). It charges ok, and runs ok, scream or no-scream. It's quiet right now, but if I move the adaptor to another plug it will start again.
I was going to live with this, but today after an hour of operating quietly it just started again, and I hate to leave the house with this going.(it will scream whether the laptop is on or off. I have a really old battery and cannot replace it (I am currently staying in Mexico for the summer). Battery life is 45 min. I haven't tried pulling the battery out. That would be too easy.
This all started when I bought a replacement power adaptor (generic),after the original one melted down, but I could stop the screaming by unplugging/plugging it in again once or twice. Then I bought an expensive iGo adaptor, and it does the same thing.
I Did the PRAM and PMU reset.I can hear it over music or the tv. It grew lower in pitch today after squealing for a half hour. I'd normally not let it go on that long, but i was
in the other room.Is my PISMO dying?
(400 mhz pismo G3 500 sdram, osx-10.39, no os-9 or Classic, new 80g HD)
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Mar 2, 2010
When I connect to an HD TV using the Mini DisplayPort (via a Monoprice Mini DP-DVI dongle and a Monoprice DVI-HDMI cable) and to a Hi-Fi system using the headphone out, the Hi-Fi speakers emit a loud and persistent high-pitched whine.The whine disappears when I disconnect the Mini DP dongle, and also when I disconnect the audio cable so that the sound is playing through the internal speakers. There's no whine when I connect earphones to the MBA instead of the Hi-Fi. I don't have another external display with which to test the issue, so I'm not sure if this sound exists when the computer's connected to, say, an ACD.I'm surprised that this problem doesn't seem to have been mentioned on this board, but it's well documented on the Apple boards (1, 2, 3, 4). The consensus over there is that it's a fundamental design flaw in the MBA and that the only solution is to get a ground loop isolator. Has anyone here had the problem and been successful in getting it fixed by Apple?
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Jul 1, 2009
It's the 2008 model MacBook Pro with the 9600m gt 512 card.
So, I just noticed that when I have my MacBook Pro in High Performance mode it emits an high pitched noise when the fans are running around 6.2k RPM and the CPU and GPU is around 63c. The noise follows the speed of fans, and at idle the noise is gone.
I have uploaded a video of it on youtube here: http://www.youtube.com/watch?v=HioRgTNpNRA
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Oct 24, 2009
I just bought and received a new 21.5'' iMac and love it but the screen is making a high pitched noise, similar to a dog whistle. It's that sound that isn't loud but pierces through your brain. And the brighter the backlight is, the louder is gets. I love this machine but I don't think it should be doing this and it bothers the heck out of me. I called Apple and all they said was to bring it to the Genius Bar.
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Nov 20, 2009
My 13" Macbook Pro has started making an odd, high-pitched noise, kinda like one of those 'mosquito' ringtones. It's pretty quiet so I can only hear it at night when the computer is beside my bed on the nightstand. However it's odd in that, it's always present UNLESS I scroll in Firefox. As long as I'm scrolling in Firefox, the sound stops. It seems to be coming from the left side of the computer.
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Jul 29, 2010
Just got my new i7 in the mail today after waiting for the refresh for 5 months and it has that stupid high pitched noise that you get when you adjust the brightness. I returned four of these things at the beginning of the year (2 HD failures, 1 power source failure, 1 DOA), one that had the hd failure also had this same high pitched noise.
I love these computers (minus the complete lack of quality control), so I don't want to switch back to PC, but I am at my wits end here. Apple already gave me $150 off this computer for me trouble, but I just don't know if its worth the hassle anymore. I am returning it for sure, but would you ask for more compensation, maybe a ram upgrade or something? I don't like to be the guy who asks for free crap, but the way I see it, they can give me another hundred $, or I can go back to pc and they lose a customer for life.
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Jan 13, 2011
I want to hook my Macbook Pro up to a Sony Bravia (not sure of the exact model). I went to the Apple Store, and was given these two items to hook it up. Moshi Mini DP to HDMI Adapter with Audio Support. Belkin High Speed HDMI Cable - 6 feet
We successfully hooked it up last night, and the video worked. I was told in the store that this setup would not transfer audio, so I already knew there would not be sound coming from the TV, rather from the Macbook instead. My Q is: What's the easiest way to get audio to come from the TV? I'd rather not buy external speakers to plug in, if I can help it.
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Mar 2, 2010
So I have an external HDD formatted in NTFS that I used for all my DVD backups items connected to my Mac (running Mac OS X 10.5.8). In any event, I was re-installing windows on my Laptop (which is a PC) and put the old copy of windows on the external drive. Well, I don't need it anymore and was trying to delete it but it won't delete. I have tried everything short of initializing the drive which I want to avoid so I dont lose all my DVD backups. It's in the trash but it just won't empty.
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Jun 2, 2010
I'm getting this softly high pitched sound at idle. I did not have this sound before until this month. I bought this thing in January 2010, yes this year. Does anyone know what could be going on? It does not make that sound when I'm using it, it's only at idle. I can even hear it when I'm lying in bed since this is in my room. Check out my signature to see what I have.
It sounds like a idle fan issue? The computer works fine, but it's just that high pitched noise that bothers me. I should take it to the apple store huh?
I decided to keep my current set up and use my mac mini as a desktop that mostly works as a media server like set up that holds my media for my apple TV if I run out of space on the ATV and later use it as a home theater computer when i get another HDTV. this is just fyi on why I have my mbp and mac mini still yet instead of having only one computer...
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Sep 1, 2010
after i get to the windows loading screen my mac just throws out a consistent high pitched sound and shows a black screen, i can only get into bootcamp windows when i unplug the computer and start it up with the running windows normally option. is this a virus?
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Oct 2, 2009
When I'm at home, I usually use an E-MU 0404 USB audio interface to channel sounds from my MBP. The problem is that every time I turn on the interface, the sound is distorted and corrupt. It is not a problem with the hardware; my monitors and interface work properly. The only workaround is to restart the computer with the interface connected and on, which clears up the sound. However, this is very inconvenient to do every time and I think that it's most likely due to a sound driver issue.
Information:
2.66 15" unibody MBP,
10.6.1
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Sep 9, 2009
I'm looking for a good quality Audio Interface for my iMac, i work with MIDI only so i won't be needing tons of ins & outs for vocals, mics, live instruments etc, the only thing I'll be needing to connect is a Digital Piano (MIDI ports) and a pair of Monitor Speakers. what are the best AI brands out there for a iMac ?
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Nov 4, 2010
Anyone have a good recommendation for a USB audio interface for the 11" MBA?
I have some nice headphones and would prefer to get some decent D/A conversion in as small a package as possible.
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Aug 11, 2009
did anyone ever got a chance to work with Saffire LE on XP using bootcamp? I searched all over the place, found some patches and solutions, but nothing works Just ridiculous.
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