"White Noise" at Start up

Whyen I power on my imac, the screen is white and then the tiny apply appears with a progress bar circling around it. Then, the screenturns into "white noise" similar to what a TV loos like when the cable isn't working. Any ideas?

no noise at all. the screen starts going crazy. sometime lots of verticle lines that are very close together and pulsating. I just restated again and this time the verticle lines pulstaed for a minute and now the screen is grey design with a yellow verticle band going up and down in the middle of the screen and a pink band on the left side of the screen.
when I hold down the option button at start up, I get a picture of the hard drive icon on the screen with an arrow pointig towards it. it looks normal. when i click the arrow, the apple appears, then the circularl progress bar...and then the screen back to freaking out.

Similar Messages

TV white noise after starting from standby

Hi,
Recently I have installed ShowShifter. It's a great program and very stable. Everything works as it should from excellent TV picture and sound, recording, showshifting, playback, etc . Except one thing is not working correctly: the recording from standby .
When I schedule a recording and put the machine into standby it will start the recording as planned. When I then later play the recording the picture is ok, but there is a lot of white noise. Also when I select TV I get white noise. After a restart the TV programs are ok, but the recording has still the white noise.
I did some testing and found out that when you go into standby and come back that always the white noise is present in the TV programs.
The following drivers are installed: 4.31 NVidia Audio drivers and the latest beta TV Tuner drivers.
Does anyone has the same problem? Did you find a solution?

Quote
Originally posted by Stu Online
do you mean white noise in the sound?
Sorry, I think I wasn't clear in this respect . Yes, white noise in sound.
I have found out that the MSI MS-8606 Video Capture Driver 4.102.11 from 15042004 (the new beta driver) is the one that is not working correctly. When you disable it and then enable it again then the white noise IN SOUND is gone and the tv sound is back.
I have reinstalled the older driver from 082003. That one doesn't has the 'standby' problem, but gives me a grappy picture . So that's a no go.
What could happen to this beta driver during 'standby' after using ShowShifter that it is not working correct anymore ?
Regards,
Rene

IPod Video 5G 80 gig - White noise

I have an iPod Video 80 gig and I notice that their is always a background white noise (hiss). I start a music and press pause for this test.
When I close the volume I can hear a clip when the volume is close. As soon I increase the volume I hear a white noise (hiss) and it keep the same level until I get to the 3/4 of the volume then it's start to make the white noise louder and also I can here some clipping that is comming from the wheel until I get to max volume.
Clicker sound : OFF
EQ : OFF
Sound Check : OFF
The problem I got with this white noise is when I listen to calm music I always here the white noise (hiss) like I am listen to a tape cassette.
I was hearing this with my Sony MDR-EX70 but I just purchase the Ultimate Ears Super.Fi 5 Pro (white) and these headphone are so clear compared to my Sony that now I hear the white noise even more !
So I would like to know if this a poor SN ratio noise of the iPod built-in amplification or it is just my iPod and my friend iPod too ?
It would be interesting if a couple of people could try the test and see if they got the same background white noise.
- Start a music
- Pause
- Close the volume (should hear a click a the close position)
- Increase volume (should start to hear the white noise (hiss)
- Increase the volume to max and at about the 3/4 of the volume up to the max volume you should hear some clipping noise from the wheel sensors and the white noise should also increase in level up to the max volume.
If all iPod are doing this then Apple should redesign the amplification to increase the Signal to noise ratio better than what it is right now.
I would like to have some feedback on this from the people who gonna make this test.
Thanks

Also when I plug it in my stereo system I can hear the clip when I close the volume.
The white noise is their also but I cannot hear it at the listening distance from my speaker. But if i'm right whe you plug the iPod on the dock we are not using the internal amplifier of the iPod but just the output signal.
I have a Class A amplifier in the living room so to ear some white noise from the speaker I need to bring my ear 2 inches away from the tweeter.
On the iPod the amplifier could be a Class D with alot of white noise.

HT1338 If there is no sound/music playing, computer starts to make white noise. After sound/music starts, computer pops speakers/headphones. How can I fix this?

If there is no sound/music playing, computer starts to make white noise (unless muted). After sound/music starts, computer pops speakers/headphones (white noise stops). How can I fix this?

Hello Stacey,
What all devices do you have connected?
It sounds like a Ground loop... voltage leaking somewhere.

MBP 17" report, occasional white noise from right speaker

My 2.16Ghz MBP with 100GB 7200rpm drive and 1GB memory arrived a few days ago. Since then I have been installing software, running apps, and generally putting it through it's paces. I have also added a 1GB stick from Crucial. On the whole the MBP has been great, except for a few (hopefully minor) problems:
1. It gets quite warm on the left palmrest, and gets uncomfortably hot between the keyboard and the screen. This is just during casual use, web surfing, downloading updates etc. The case temperature is about the same as my old 667MHz TiBook after it had been at 100% CPU for several hours (encoding video). I dread to think how hot the MBP will get doing something demanding.
2. When closed the screen appears to be slightly bent, the gap at the two front corners is about 1mm wider than the gap at the latches.
3. I have started to get hard crashes during the boot up sequence. Specifically after the grey apple I get the greyed-out multi-language reboot message and have to reboot. If I continue trying to reboot it eventually manages to get past the grey apple and boot up normally (usually this takes 2 or 3 attempts). I suspect this is due to something I've installed, possibly some Canon software for my MP750 printer.
4. I have now heard a white noise/static sound coming from the right speaker on 5 occasions. Three of those occasions were while booting (one of them was when I first turned the MBP on! Not a good sign). The computer boots normally, but with this strange noise! The other two times where when I was launching apps. On each occasion the noise lasted about 3-5 seconds before stopping. It's more of a hissing noise, not a mooing or a whining noise. It sounds exactly like the speakers on a vinyl record player when the needle is in between songs.
Obviously all of the issue are annoying. However I'm only REALLY concerned about item 4. Item 1 was kind of expected after doing some pre-purchase research. Item 2 is annoying in a £1800 laptop, but I can reluctantly live with it. Item 3 is frustrating but I'm sure I can 'cure' it by removing software (it only started happening after a day or two of fairly heavy use). Item 4, on the other hand, is intolerable
Anyone have any suggestions? Advice appreciated. The nearest Apple store is about an hour away, so advice other than "take it to a Mac 'genius'" would be appreciated.
17" MacBook Pro 2.16GHz Mac OS X (10.4.6) 2GB RAM

Well, that was 15 minutes of life wasted typing out the above post that I'll never get back
I was hoping for some sort of 'expert' advice from all the users here with thousands of posts. Evidently not.
Anyway ... I have (kind of) fixed the problem myself. Resetting the power management unit almost completely solves the static noise problem. I say almost, because since resetting the PMU (about 2 weeks ago now) I have heard the static noise ONCE. This is compared to hearing it around 3 or 4 times a day prior to the PMU reset.
This at least makes me slightly more confident that this is a software/firmware glitch, rather than a hardware fault.
Hope this helps someone.

White Noise showing up in images after PDF Creation

I am currently running into an issue making PDFs from InDesign CS4. Lately, our company has been getting some rather large jobs in to print and that's when this all started.
The current job is 190 pages plus cover that will be perfect bound. The client, nor I can make one large PDF from this job so we have to break it up into sections. Usually each of the PDF sections has around 20-50 pages per.
Now the issue we're running into is that on some of the pages, an image will end up with a bar or lines in it that looks like white noise. Like the image information was lost for a short period of time during the PDF creation from InDesign.
Here are two pictures of pages from separate jobs and a close up on what's going on. **Second image was from a 32 page plus cover document we have already printed.
Now in order for me to fix this issue is to just make a single page PDF of the effected pages in the document. I just wish I knew what was causing this issue so I know how to avoid it in the future. So far four jobs have been affected like this; two 32 page + cover jobs, a 64 page + cover job, and is job.
We use a Rampage Workflow system here. My PDF settings in InDesign CS4 has all compression turned off, no profiles or color conversion turned on. I keep compression turned off because it seems sometimes, vector art done in Illustrator does not seem to come out looking well when RIP'd in Rampage.
My main computer is a 2.8 GHz Intel Core 2 Duo iMac with 4 BG of memory running Mac OS X 10.5.8.
My current version of InDesign CS4 is 6.0.3. If anyone has run into this problem or if anyone has any helpful hints for me, I could really use them please. If you need more information from me, I'll be happy to answer any questions.
Thanks for all the help!
Roc

That one has come up every now and then and has always been hardware as far as I know.... bad ram, bad cable, bad drive, bad network maybe even bad video card (?).
I see that the lines in the rotated pic are parallel with that pic, so maybe look at the machine where that pic was made and placed first, this is not definite, but you can get corruption in tiffs on machines with hardware errors and they may not be visible every time you open the file.
Although probably a bigger clue is the fact that doing singles is working better, that would make me change the ram completely, suspecting a bad module. Also, unplug peripheral devices and see if that has any bearing.

White Noise when using ProTools

I have a PwrMac G5/2 CPU/ 2 gig Pwr PC.
I use ProTools LE 7.1.1 with an Mbox-1
When I load ProTools, I get a high pitched noise coming from the Mac, and it gets picked up in my recordings. This noise only starts when I load the ProTools App. If I close the app, the noise stops. It sounds like it's coming from the left side of the Mac, just above the power button on the front.
There has been a lot of discussion about this on the Digidesign forums, but no real explination or fix. I was just wondering if anyone on this forum has run across this and what the results were.
Ray

The noise I can hear in my speakers and headphones. I did some further experimenting last night and bounced a couple of recorded sessions in ProTools to disk. When I listen to the bounced versions, I don't hear the noise, so I surmize that the noise isn't getting into the recorded tracks. This is the first time I've bounced tracks, so up until now I've only been listening to playback from ProTools.
I also noticed that when I have my headphones plugged into the Mbox, and close ProTools, the white noise changes to a pulsed beeping sound, almost like a stopwatch. This is also a symptomatic sound reported on the Digidesign forums.
Ray

IPhone 4 crackling and grainy white noise!!??

I have recently had my iPhone 4 replaced because of terrible noise interference during calls to the point where the sound totally went off....I have had my new iPhone 4 for 3 weeks, last week it started to make funny noises! Really loud crackling during some calls (not all)...it made me go slightly deaf! Like firecrackers! Occasionally it makes those radiowave interference noises too, and now it has started to just randomly produce grainy white noise when it is just sat next to me. My alarm went off this morning followed by a fuzzy noise each time it did....is this just my phone or is it a common problem? Should I get a replacement or will this keep happening? I feel like it is melting my brain

Did you have any success fixing this?
So I am dealing with the exact same crackling issue on my iphone 4. I've been to the genius bar 3 times and they are stumped, they can't figure it out, they've gone up the chain and no one gets why it's doing it. They asked me if I have a metal plate in my head. I've been to ATT to get the SIM card replaced but the problem still persists. So of course they quickly sent me back to Apple saying it's their problem. I have another appointment tomorrow. The only thing I can think of that's different is I got one of the ATT Microcells for my apartment to help boost the signal but this is really grasping at straws.

My ears are ringing from blast of white noise from Logic 9

NEVER had this happen in Logic 8 (or any other software for that matter) on same hardware.. Not only can you not OPEN Logic 9 by clicking on a logic 9 file, SAVE in Logic 9 without it putting audio out of sync, now I discover you cannot RECORD for more than a few minutes without getting a blast of white noise. Seriously, my ears are still ringing 8 hours later from this noise. If they are still ringing Monday I am going to the hearing specialist and Apple WILL be paying the bill. I pray no serious damage has been done and that I will still be able to do mastering work. If I monitor through Logic, even at 128 the monitored audio will occasionally slip out of sync and there will be like a 2 second delay in the monitored audio, then eventually a deafening blast of white noise. To release software in this untested state is totally negligent, irresponsible and downright dangerous. Disgraceful.

chucknkd00 wrote:
had this happen yesterday. at least we could SEE it in the waveform and turned down to check it. no reason at all to get it, but it just decided to do it.
BTW, i used to have this happen to me in L7 and L8 sporadically after a few mins of recording on the same track, never did understand the reason behind it.
Right, it's not new to Logic 9.
I always thought this may happen when either... (pick one or any combination thereof)
1. A drive was asleep (not necessarily the recording drive) and wakes up.
2. The OS starts writing a swap file to the system drive.
3. Journaling kicks in to record changes in the disk structure.
I turn Journaling off on any audio drives.
pancenter-

Media Encoder CS5.5 Audio being converted into white noise

I have recently started getting an intermittent problem where some video files are being encoded to FLV with the picture looking fine, but the sound coming out as white noise.
The file used for the encoding looks and sound fine in every other app i have. I have been using the same preset within ME to create all the files for our website, for years!.It should be stereo 96kbps MPEG 3 but all i get is static.
The source videos are all edited , mixed and output the same way too.
The files being sent to Encoder are on Mac 10.6.5, and were created in Final Cut Pro using the Prores422 codec, with audio as Linear PCM 16bit/48khz
I have just rebooted the mac, installed the latest CS5.5 upgrades, repaired permissions, but still the problem persists.
Can anyone suggest a solution?

seems i did answer this myself last year!
i need to re-ecode the source material in a format other than 10bit uncompressed for Encoder to be happy with it. I thought the file was already Prores - must be an older file thats causing the trouble.

Uniform White Noise vi parameters

Hi
What is meant by seed in the Uniform White Noise vi. in labview. What is the effect of sample rate and nuber of samples on the noise waveform and the output power?
Thanks
Mal

malkoba wrote:
Hi
What is meant by seed in the Uniform White Noise vi. in labview. What is the effect of sample rate and nuber of samples on the noise waveform and the output power?
Thanks
Mal
The seed is a number sent to the Pseudorandom noise algorithm to start its sequence. If left blank a "random" number is generated and sent to start the prn generator. On subsequent calls to the Uniform White Noise Generator it continues the previous sequence (it is pseudorandom after all). I'm not seeing a sample rate on my version (7.1) only sample number. The default for sample number is 128, which is a power of two, something that FFT's etc. are happier with than non powers of two. As far as the effect on the noise waveform, it just defines the length up to max memory or 2^31-1. What do you mean output power? For white noise you would have to define a bandwidth in which you were measuring the noise and then average over a long time. Try putting together a simple experiment and seeing what effects changing the values has. You don't have the base package, if you have the Uniform White Noise vi, so you probably have the Power spectrum vi, etc. Wire the UWN into a power spectrum, then drop a waveform graph on the front panel and look at the resulting spectra.
P.M.
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

When I open GB in my booth macbook pros and play back my project a short but regular 10 to 20 seconds white noise keeps sounding. does any one know what's going on?s

I was using the garage band normally latetly, recording some projects and all. Sudenly when I open the software or play back, or record a short 4 seconds White noise every 10 or 15 seconds starts buzzing. Does anyone know wth is that?
I've tried re download garage band loops and sound boughtg, re install... booth computers I run the garage band keeps buzzing this annoing white noise.....

tryshdanielle wrote:
So what I'm asking here is what do I do to make sure this doesn't occur anymore.
Get a new computer. Consider switching to regular milk, or even a light fruit juice.

Dynadock - USB Audio kaput busted broken (white noise)

not sure what has caused this, but I use a Dynadock and up until Monday the USB audio was fine, then it started making crackling white noise. I thought was temporary as was off to work but on return today is doing the same. A bit of google leads me to think this is not uncommon.
I have reinstalled Dynadock software (latest version from Toshiba site)
I have reinstalled Conexant sound drivers (latest version from Toshiba site - though don't think this is latest according to Vista update - did I mention Vista? ;) and working fine
After much searching as it does not seem to be available from the Toshiba site I found a C Media 106 Driver (which is what it was before) and installed that, and the white noise is still there.
I assume this is a Vista / Driver issue?
Which also assumes means there is no way round it without either system restore back to a previous point and hope it goes away, then select each update
or wait for a new driver but with no idea who owns it or when that might be?
Is there any alternative? I use the docking station almost permanently so this is a real pain in the rear.
Not a happy bunny! Can anyone help please? Is anyone having the same problem?
Thanks in advance.
t

Hello Tim
Your posting is pretty confusing and I can not understand what you have done and wrote about all those sound drivers. In my opinion you should make clean Dynadock installation and configuration.
Disconnect the Dynadock from the system and remove all preinstalled stuff. Download Vista Dynadock Utility 2.3c properly. Follow the menu on the screen and please do not interrupt Utility installation.
Dynadock Utility will install all stuff you need and I hope you will be able to use this nice external device again. Of course I hope the sound will be OK again.

White noise, not charging

My cat chewed on the power cord while it was charging the MacBook. I think it shorted or something. The computer turned off, and I had to turn it on again. When I did, the laptop started making a white noise. It sounds like it's coming out where the speakers are, but the speakers are on mute. The computer still has all my info on it (I'm backing it up right now just in case), but the power cord is no longer charging, and the battery icon now just shows an "X" within the battery, and says that no battery is available. Do I need to replace the battery? And what's this white noise?

I searched BlackBerry World for apps named "White Noise" (or variations close to that) and came up with five results (from here in Canada, there might be different results from the U.S.) and none of them listed the PlayBook as a compatible device.
Could you elaborate as to which app you're referring? Please include a developer's name or a direct link to the app in BlackBerry World and we'll have a closer look at the situation.
Cheers.
- If my response has helped you, please click "Options" beside my post and mark it as solved. Clicking the "thumbs up" icon near the bottom of my response would also be appreciated.

Bluetooth Audio Blasts White Noise

I have a Macbook Pro and when I listen to music via bluetooth (headphones, speakers, etc.) it eventually glitches and then blasts white noise. Anyone know what the problem is?
By the way, I don't experience this problem when using the same bluetooth devices with my iPhone.

the problem is that 10.10.2 is a piece of junk. look through the discussions, and there are already a number of them mentioning this. in all the posts i've read, this started with that update. amazing that apple can cause a problem that can both damage hearing and equipment, and after a month still nothing. i've had it happen about 5 times today. add to that, my bluetooth keyboard has disconnected and reconnected 30 times, often consecutively.
the only fix is disconnect the device, and reconnect. or, if you just mute audio and wait a number of minutes it is usually gone after un-muting. 10.10.2 is a failure. fingers crossed 10.10.3 fixes it. hope my speakers don't blowout in the meantime.

"White Noise" at Start up

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