Noise when using ext dvi monitor

when i plug in my dvi monitor i get loud sound interferrence through my ext speakers plugged into my mbp. if i turn off the seocnd monitor or unplug the dvi cable the noise is gone. This has nothing to do with the cpu

It happens the same to me. I just get the noise when plugin in an external monitor, and when i do the noise is unbereable. I use the MBP to make music!!!
HELP!

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Noise when using isight in Movie 08

I have substantial noise when using iSight in iMovie '08. Please see my example on Youtube Mirno63 labeled test. I would like to have my daughter practice for a recital using isight but the noise is so loud. Please help!
Thanks
Marian

Hello, Marian (mirno)
If I am listening to the correct YouTube video, I think that at least some of the sound that is troubling you is background noise. Sookyas may also be right that feedback is causing your problem.
In either case, using an external Mic that is positioned closer to the voice you want to record than to your MBP should help you.
I use this Logitech USB Desktop Microphone when I want to get sound from a person who is not close to my Mac. My Logitech does a GREAT job on spoken words. Although it is not advertised as (and does not cost as much as) a music microphone, it gives better sound recordings than my laptop's built-in mic unless the voice being recorded is very close to my laptop. It certainly meets my singing and other amateur music needs. However, other brands should work, too.
Unless you can buy one from a trusted retailer who will give you full exchange or refund credit if a new microphone does not correct your problems, I suggest you take your wonderfully portable MBP with you when you shop, add any needed driver, and test the mic before you buy.
Here is how I would perform the test.
• Leave "AudioMide" settings at default. (You should not need to change these settings when using iMovie except in extraordinary circumstances.)
• Set your  > System Preferences > Sound > Input to use the new mic as your input device.
• Extend the microphone's cable away from your MBP, and start recording.
• Leave the computer where it is and physically move near the mic so your mouth is approximately half a meter from mic.
• Sing or speak in a normal voice for a few seconds and then stop the recording.
• Now change your System Sound Input preference back to user you MBP's built-in mic again.
• Start recording again.
• Leaving the MBP in place, move back to the same place where you tested the external mic.
• Sing or speak again at about the same volume you did when using the external mic.
• Stop the recording, and play back both recording so you can compare them.
This test should let you easily determine whether the external mic meets your needs.
If the noise is still there when recording from the external mic, there is most likely something wrong with your Mac. Contact Apple or your Apple-Authorized Service Provider.
EZ Jim
PowerBook 1.67 GHz w/Mac OS X (10.4.11) G5 DP 1.8 w/Mac OS X (10.5.2) External iSight

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Just bought the Focusrite Scarlett 2i2 yesterday as my previous audio interface broke. Now I am having crackling noises when using the 2i2. . .a problem I did not have with my previous M-Audio Fast Track C400. . .so I know it's a problem specific to the 2i2. Already downloaded the latest drivers as well.
Anybody have any solutions or similar problems with this product??? The crackling noise is intolerable.
Thanks.

Hi lee, it sounds like the problem your having is exactly the same as mine. When I use the 2i2 there is clapping and crackling which gets worse and worse until the sound disappears, I know a few people on different forums are having the same issue so I don't think it is the interface. I'm using iMac 27
•      NVIDIA GeForce GTX 775M 2GB GDDR5
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•      16GB 1600MHz DDR3 SDRAM - 2X8GB
•      1TB Serial ATA Drive @ 7200 rpm
There should be no problems with this set up in terms of capability, I'm still waiting to hear back from Focusrite tech help desk and when I do I'll share the outcome. I hope this can be resolved, let me know if you have any luck before me?
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EXTREME noise when using DVI adaptor

This is driving me up the freaking wall.
I bought a flat screen monitor to connect to my Macbook Pro.
When I connect the monitor using the Apple DVI adaptor, there is INCREDIBLE, LOUD noise and static out of my speakers. The speakers are connected to my firewire audio interface, a Motu Ultralite. I swapped out the Ultralite for a Presonus interface...noise still there.
The noise goes away, immediately, when I unplug the DVI adaptor from the Macbook Pro.
adaptor out = no noise (but no external monitor)
adaptor in = loud, noise and static
***?

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When I connect my MacBook Pro to an external LCD screen and also connect my soundoutput to an external amplifier I get noise in the speakers. What can I do to avoid this?
It gets even worse when using powercord on my MacBook.

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I connect to my HDTV via HDMI cable, using a mini-DVI to HDMI adapter from my Macbook’s video-out port. The audio connection is a mini-plug from the Mac’s headphone out jack to stereo RCA plugs associated with the TV’s HDMI port.
The wireless connection is through a Lynksys Wireless-G 2.4 Ghz, 54 Mpbs Broadband router.
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When I'm using the XP partition I would also plug in another monitor while working. I would get this weird sound (like a robot) followed by pauses or short freezes when in the middle of my work. It doesn't happen all the time but only when i'm playing audio or scrubbing videos.
what do you think is happening? and what can i do to eliminate this?
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I am having an identical problem with my Mac Air.
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Can i use multiple dvi monitors on the 2012 macbook pro (non-retina)?

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Noise when using Front-Panel headphone j

This message is for those who may experience noise in headphones plugged into a case's front jack. These noises would likely be heard if one uses a quality phone set with good isolation. (not noise cancelling type) and during quiet times, such as when no music or other audio source is being played, or perhaps when listening to programming with very high dynamic range and the frequent, very low loudness passages of music, etc.. There is no problem with the card. (I'm using an Xtreme Gamer card) The problem will be with the header panel on the case itself. You need to isolate the case ground from the other grounds coming in from the various board headers, such as USB, the sound card, etc. I accomplished this by scraping away the foil from around the stud landings on the panel module board. Of course you need to exercise care when performing such a modification but you will be rewarded with absolute, golden silence, when that's what you should be getting. Again, there is NO problem with the card.

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APPLE!!! FIX THIS!!!!!! IT IS PHYSICALLY DAMAGING TO THE USER. COULD EASILY BLOW SOMEONE'S HEARING.
I just went to play a preview of the file while adjusting the settings in reduce noise print WITH HEADPHONES ON! I was attempting to take out a very loud running generator in the background of an interview and nearly blew my hearing in my left ear. I threw the headphones across the room. Painful to say the least. My sound was only on the first notch and the result was louder than I can get my headphones to play with the volume all the way up.
JamesGray, if you file a lawsuit, let me know, no joke. This is a dangerous and irresponsible game Apple is playing with their professional user's hearing, and therefore their livelihood and quality of life.

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Sorry for my English. Need your help!

Hi wtfwithmyphone,
Welcome to the forum!
Does it only happen when using the phone with headsets? Do you also hear this noise when the audio is played via loudspeaker? What are the models of the headsets that you tried with your Nokia Lumia 630?
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it's like a chirping noise when scrubbing eg. youtube videos. could it be the video card problem? because of the multiple monitors?

Noise when using ext dvi monitor

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