Apple TV totally crazy buzzing noise

After I come home from work I like to listen to music via Apple TV - my tv set is driving the stereo system.
However, when I go to System Preferences > Sound > Output and click on "Apple TV" a totally crazy, irritating, super loud, horrible buzzing noise starts.
I read many discussions, websites, and can report things that DO NOT WORK:
- killing coreaudiod , either with Terminal or Activity Monitor. coreaudiod restarts, but buzzing noise remains
- restarting Apple TV
The only thing that helps is to reboot my MacBook Air. Then it's fine until next evening.
Any other solution? Does Apple know about this bug?

Welcome to the  Discussion Forums.
Could be a number of things are you able to use any other components (different lead etc) to isolate the problem area.

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Apple Hardware Test (AHT), buzzing noise, fan blows loud, & AHT crashes

Hi there,
I've finally had it with some hardware issues that I've had since day 1 of owning this G5 Dual 1.8.
Running10.4.9 OSX...
Nothing that has affected my day to day working-yet, but growing problems, fans get loud, awful buzzing noise from inside the tower comes and goes and grows in volume when it's happening. I believe it's coming from the internal drive bays... Both of which are filled with 2 new SATA Seagate internals that don't appear to be slowing up or spinning a processing error when I'm working...
When I run an Apple Hardware Test, The AHT disc crashes each time at the 5 minute and :12 second mark while "In Progress" on the "Mass Storage" test, it freezes and the fan gets loud. I do a hard restart to get up and running ok each time afterwards.
I've never received a complete AHT result of tests summary, ever, so I don't know what's really wrong, ever. But I know something is not right. Using Disk Utility is a joke, SMART status is always "verified" of course, no obvious system software errors.
I'm using the disc that came with my G5 "Additional Software Apple Hardware Test":
AHT Version 2.2.2
Disc Version: 1.1
I've scoured Apple knowledge base for anything on this version-but nothing.
Any suggestions please. IS there any hardware testing software out there besides the faulty AHT disc software Apple provides? The nearest Apple store is over an hour and half away, I just don't have time to drive there to hear the same thing I already know, and if I could pinpoint the problem myself with proper software, I can handle doing the maintenance....
Please help!
Thanks!
DAve

Some G5s had a firmware update that caused problems with the version of Apple Hardware Test that shipped with the G5. The Latest G5 Apple Hardware Test is 2.2.5
Call Apple and see if you can get it.
Another hardware test is TechTool Pro
<http://www.micromat.com/index.php?option=com_content&task=view&id=31&Itemid=48>
Meanwhile, try testing with some of the RAM removed. Try different combinations of RAM modules and slots. Always use them in pairs.

Horrible buzzing noise whilst on charge

Hi all...not sure if anyone has had the same problem but when my Mac is plugged into charge and I have audio or video playing I have this awful buzzing noise in the back ground but when unplugged the audio is perfect - maybe there is some kind of electrical interference happening but it is getting a bit serious as I am a musician and I need total clarity with my recordings. Has anyone had this before? Please help?
(Was thinking maybe a shielding issue or something)
Thanks in advance!

Are you using a third party power supply? I've heard some of these cause hum / buzzing. If you look at the comments here for example:
http://www.amazon.co.uk/65W-Apple-Replacement-including-PowerBook/dp/B0018QSQ06

Mac Performa 405 buzzing noise

Whenever I turn on my Mac Performa 405 after a while it starts to make a buzzing noise. I am almost positive that this noise is coming from the add-on Motorola 68882 FPU installed into the socket on my Asante MCiLC LC PDS network card. What can I do about this noise? It's driving me crazy & the Mac has also frozen once before briefly (it was running for hours on end though). Somehow a couple of minutes later Mac OS 7.5.5 managed to unfreeze itself. When I upgrade to Mac OS 7.6.1 will my FPU be better supported? The Mac has 12 MB of RAM though it only sees 10 MB too. Virtual Memory is also turned on since I'm trying to get Cyberdog 2.0 to run. Cyberdog 2.0 also freezes the Mac whenever I try to go to Apple's Support site too.

Craigwd_2000
It is characteristic of the Colour Classic, CC II, Performa 250, LC II, Performas 40x, and others that I wot not of from direct experience, that the lowest 2MB of 12MB installed are not addressed by the MMU. Pointless, but true. Add 2 x 2MB to the base 4MB and 8MB wil be used. Add 2 x 4MB and only the top 10MB will be used. If you feel limited by this, replace the LC II logic board with a Q 605 board and add a 32MB (or 128MB) 72-pin SIMM. My Elsie sings with the latter combination, and can run OS 8.1 with aplomb. With more RAM you wil be able to abandon Cyberdog (unless you wish to savour the agonies), and accommodate other applications with greater memory demands.
As far as the buzz goes, you can confirm the cause as electrical or mechanical (eg, the fan) by muting the speaker output, removing the FPU (if it is socketted) or the card if it is not, detaching the 4-pin power plug from the HDD or the cable from the FDD, and so on, one at a time.
You need only to elevate the rear of the case, as has been suggested, to increase ventilation enough. Given that, and the inner cleanliness that so-and-so's tonic water can produce ... you can find the source of the noise by attacking the suspects systematically. The speaker is awkwardly situated for direct listening, but you can do it with the case top off. Make sure of the security of the cables routed around the speaker, in case one or other is loose and being struck by the fan.
Apple IIe; 68K: 11DT + 4PB; PPC: 5DT + 3PB; G3: 6DT System 6.0.8 to OS 10.4.x

When I record a video on my iPhone 4s, I play it back and it has this buzzing noise playing, even when I focus on something while filming, when I play the video back, you can hear when I've tapped to focus, how can I fix this?

Ever since I got my Iphone 4s, I have noticed that when I film a video and play it back, it has this buzzing noise and when im in the middle of filming a video and I focus on something, you can hear a click where I have focused when I play it back, is this the microphone? can I fix it myself? or do i have to take my iPhone in to be properly fixed? Help Me please!!

See this veeeeeeeeeery long thread.
https://discussions.apple.com/thread/3404857
It's an issue with hundreds of phones. Some claim it's software related, some hardware, some say it's a mixture of both.
Some people have had temporary success with quitting the Phone.app / restoring as a new phone / restoring from an iCloud backup / disabling Siri / toggling speakerphone on & off...
Unfortunately all of the above only been temporary, with the problem recurring again after a few calls, or a few days etc.
So far the only solution that seems permanent has been to replace the phone. But even so, it's the luck of the draw to recieve a functional phone, and not another faulty one.
I'm completely annoyed as there is no Apple Store near me...... and Apple haven't even acknowledged the issue, despite the above thread being 34 pages long, as of writing.

Firmware 1.1 - What is the verdict - does it fix the buzzing noise?

I've been waiting to hear if Apple has resolved the issue of the buzzing noise with the 2nd Gen Nano. Those of you who have experienced this issue - has the new firmware resolved the problem for you?
I'm not sure whether now is the time to buy or not? I'm interested in the 8GB or 4GB models if that makes a difference however, from what I've read the issue has surfaced among all capacities.

I have said this a couple of times and I say it again...apparently I must be very luck because I did not experience this buzz on the 4gb I had briefly, the 8gb I currently have or the 2 that I purchased for birthday gifts to others. Because so many people seem to have been having this problem I wanted to make sure I didn't buy anyone buzzing gifts so I checked them both out. And apparently, no one that has the issue (solved at this point or not) have been able to get a real answer as to just what the problem is. I think this is also one reason why I don't really like to order my ipods...if there is an issue you can't just take it back to the point of purchase and get a replacement that same day (unless the Apple stores allow that...the closest one to me is about 100 miles away so I wouldn't know!).
Hope something happens soon for you!

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Tomorrow is my last day for replacement of my 13" MBP which has chirping buzzing noise around esc button!
Today, I went to Apple Store again and tried to listen the other 13" MBP to make sure that they also have the same noise. And yes, they all have that annoying noise as well...
I really do not understand, why people who has 13" MBPs are saying "Our computers are deadly quite!"

I returned my macbook pro 13", even there was the restocking fee that is $139.
I am happier now, and I do not buy a macbook or macbook pro unless they do solve the all whining problems completely... My 4 years old HP still deadly quite, but needs ram...
see you in the next generations of the "Perfect" mac series...

Buzzing Noise from (IMAC 27-INCH,MID 2010)

I have noticed this buzzing noise (like crackling electricity of sorts) comign from the left side of the machine out of the cooling vent. I bought my IMAC in 2010 and have not had any problems with it until now. I noticed the "noise" a couple of months back and it would show up here and there every once in a while, it was not annoying, so I let it be. Until this last time, when the noise was loud and annoying, I could not just forget about it. I am under warranty and called into Apple to see what can be done for this problem. I was told to take it into my nearest Apple store to get it looked at, since over the phone they could not do anything about it.
I took it in May 11tt, 2012 and the guys at the Genius Bar were stumped? They had no clue and it was the first time the two gentelmen that helped me heard of this kind of problem! Since there is no moving parts on that side of the computer they escalated the problem "query" to apple engineering and was told it would take a week for a response. Thus far, I have not been updated on my problem or contacted as to the status of my problem. Its been 12 days and will be contacting them to see whats up!
Will update if problem is resolved!
Has anyone had this type of problem?? Any advice would be apprciated!! Thank you

This might seem a strange answer, but it has fixed this fault on my 27" two year old iMac (at least for a few days now, will be monitoring).
I had this very fault suddenly develop last week.   It was consistent, the noise increased with screen brightness, but was also present with the screen asleep.
I looked at every forum on the subject, became almost convinced my fans weren't controlling properly as well.
I decided it was the switched mode power supply, discussed repair options with my local Apple Store.
Checked the household mains voltage - I'm in the UK, it was slightly low at 236v AC, but thats acceptable.
Then ....
We have a garden full of water features and LED lighting.
I just decided to check all our power junction boxes that supply power to various pumps and lighting.
I found one of the boxes full of water, with the Live, Neutral and Earth, and the 12v DC cables all under water and shorted together.   The terminals were all corroded and burnt.
Yet, I had no faults present in the garden, everything was running normally.   And the RCD breaker had not tripped.
I repaired the box, fitted new terminals and rewired the box.
And since I did that, my Mac has cured itself.
I've had it running for hours to get hot, no noise, gone completely.
And the mains voltage now measures 242v AC (should be a nominal 240).
The RCD did not trip because, with all the cables shorted in water, there would no out of balance condition to initiate a trip.
So, I can only assume that arcing or the short was causing some harmonics on our mains supply that was been picked up by the coils in the Mac power supply.
The 12v DC supply in the junction box was also supplied by a switched mode supply.   I dont understand why something didnt blow in the garden, but it didnt.
I'm monitoring the Mac as the solution just seems unrelated.
Oh, and I noticed our Intruder Alarm panel was humming loudly and now it isn't.
So, I would suggest anyone with this issue takes note of any unusual humming or buzzing in any other electrical item within the house, or outside.   It may indicate you have an issue elsewhere.
Even any loose mains plugs in equiment could be causing a slight arcing on the contacts, causing noise on the mains that may be getting picked up.
Coming from an interest in high-end analogue Hi-Fi, amplifiers always performed better with a dedicated, clean, mains supply, usually from a 40 amp rated cable fed direct from your electricity meter to supply your Hi-Fi.
The amplifiers would exhibit less noise and a cleaner sound with more detail.   And the transformers in the power supply were a lot quieter too.
And what do we have today - ethernet tranducers plugged into household sockets, superimposing high frequency signals onto the household wiring.
They would cause havoc with top-end amplifiers, I'm sure.
I hope this is the solution, saves me an expensive repair.
I've never had any problems with the six Macs I've owned in the last 12 years.

Buzz noise in movies

Hi,
I am new to Apple and iMovie.
My problem: I copied .avi movies from my old windows computer onto my iMac but on all my movies I now have a buzzing noise, i.e. where I added music.
I saved all my finished movies on my camcorder too and tried to import these movies again (Sony DCR PC 100E) into iMovie. In the capture preview the audio is ok. However, when I play the captured clip the buzzing noise is there too.
When searching the forum I saw similar questions, but none of the answers there solved my problem.
Thanks.

Try following:
click the Camera app, slide the photo-movie slider on the bottom right to movie then back completely. Close Camera app, double click home button twice and really quit camera.
If that does not help, do it again, then do a reset: hold both Home and Power button for about 10 seconds until you see the white apple logo then let go.

Faint high pitched 'buzzing' noise

Can't believe I've only had my iMac two days and already it's playing up.
After turning it on today I've had this constant buzzing noise coming from somewhere, it's really faint and I generally can't hear it with quiet music on.
It's that faint I'm thinking maybe it's always been like this? But I'm pretty sure it hasn't. I've restarted several times and the problem persists.
I'm thinking of just ringing Apple about it. Should I ring my local store or the Apple helpline?

If this is the whine that goes away if you set the screen to full brightness, it's a common problem with the new iMacs. Many people, including myself, have successfully convinced Apple to replace machines with this condition.
Unfortunately, however, I'm also not the only one to be shipped a replacement iMac only to find that the new one does the same thing. The problem is just that common.
My thread about this is here:
http://discussions.apple.com/thread.jspa?threadID=2332490&tstart=0
There are definitely some new iMacs without the problem, so it's worth trying to get a replacement, though.
Message was edited by: Big Ben in Japan

Buzzing noise in left earbud

Hello
I have a Macbook Pro (15-inch, Mid 2012) and my problem is every time I use my earbuds (Bose QuietComfort 20i) I hear this really annoying buzzing noise in the left earbud only. It all started suddenly for a couple of weeks ago without further.
- The noise won't disappear if I turn down or up for the volume.
- If I touch my Macbook Pro the noise goes away completely.
- The buzzing noise change intensity randomly.
I'm sure it's not my earbuds which are or causing the problem because they work flawlessly on every other device.
Do anyone have a clue what could be causing this noise?
Thank you so much

Perhaps a PRAM reset will help:
http://support.apple.com/kb/PH14222?viewlocale=en_US
If no success, make an appointment at an Apple store genius bar for a FREE evaluation.
Ciao.

Hearing some weird buzzing noise

I have a problem. For reason, after I wake up my MBP from sleep, it makes this really weird buzzing noise somewhere from the middle of the laptop. It sounds like something electrical is short circuiting or something. This isn't normal correct? Because if it is, it's really loud and super annoying. Has anyone else had this issue before? It's happening on my 15" MBP, Core 2 Duo, 2.16 GHz. I bought it from Apple store Stonestown, and it's not even 3 weeks old yet.
Should I go see the genius? I don't think he's going to be able to hear the whine/buzz noise since it's always loud there..argh, what an annoyance.

My MBB which is a 2.0 core duo I bought a year ago, has just started making a noise that comes from the same area. Its more like a fluttery buzz. Sounds something that is rotating rapidly and and slightly clipping something--like maybe something is misalligned. Not horribly loud, but very annoying. And it goes away when I turn the laptop completely upside down, which again makes me thing something is just loose. I have been traveling a lot lately and assume that just bumping through airport security etc. might be the problem.
Is this something the apple store could possibly fix on site or does it sound like a drive replacement issue. Also, has anyone replaced a MATSHITADVD-R UJ-857 with a faster one? And if how much will that cost and what are pros and cons?

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I'm getting a loud, buzzing noise from my G4 DP500 Powermac. The noise sounds like a bad fan bearing and is accompanied by moderate vibration which feels like it's coming from the area of the power supply at the top of the machine. This only occurs when I am using Pro Tools, working on a large session with a lot of plugins enabled, and only after the machine has been in use for a long period. The noise and vibration start very suddenly, and disappear when I restart the machine. Is there a fan somewhere near the top of the machine that would only activate after a long period of intensive use?

It really feels like the vibration
and buzz are coming for the power supply unit. Is
that a replaceable or serviceable part?
I've never run across a power supply that coudn't be replaced Prices will vary depending on what machine you have.
Another thought...
Apple went though a time where they used no screws during assembly - everything was snap-together.
If your machine uses screws, might also want to check and make sure they are all tight.
If, when you touch the power supply itself, the noise stops, mght want to try using some sort of wedge/filler where the power supply contacts the case proper. (I used a folded piece of paper to stop one vibration related noise)

Tecra R940-S9421 Repeating Beep sounds like a buzzing noise

I have an intermittent issue where the Tecra R940-S9421 will begin a buzzing noise which comes thru the speakers.
I thought I had a hardware issue at first but when I muted the sound the buzzing dissapated.
So I googled the issue and found a fix whereby I must go to Device Manager / View Hidden Devices / go to Non plug and Play Items and uninstall the BEEP entry ---- this has worked for now just hoping it will not come back .....
Is this a known problem with Tecra ? Anyone else with the issue that knows a more permanent fix ?

Look at my other posts I've made about this issue. I am having the same problems. I wish apple would say whether this is a fault or if it is supposed to be this way.
http://discussions.apple.com/thread.jspa?messageID=10406601&#10406601
Message was edited by: Pmerrill87

Macbook061 buzzing noise

Hi,
My macbook (model:061) has buzzing noise problem since I purchased it at June 9th this year. There is a high frequency noise continuously coming from the MagSafe plug place located at the upper left corner of the keyboard, especially when using the power adapter to supply energy for working. It annoys me very much and I indeed can not stand it any more, because I am sensitive to such kind of high frequency noise.
I also notice that there are many people found the similar problem on the Macbook or Macbook pro. So it should not be an individual problem. Therefore, I want to know how to get the apple care service at Hong Kong to repair such problem for my macbook as soon as possible.
Thank you.
Regards,
Liang

Call this number in Hong Kong and they can set service up for you.
(852) 2112-0099
-Bmer
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Apple TV totally crazy buzzing noise

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