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funny noize from the monitor
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Jeto
Jeto
Started Topics :
258
Posts :
3252
Posted : Jan 13, 2005 23:18
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Hi..
I recently got a new screen/monitor.
Its a Hyundai 17inch
all the drivers is installed.
Somehow though.. I hear a sound when i minimize my windows..its not windows or pc sounds. it also happens when i move my mouse
its very soft sound (kind of like a bzzzz). Someone know what this could be?
Thanks
Jeto
  https://www.djjeto.com |
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EYB
Noized
Started Topics :
111
Posts :
2849
Posted : Jan 14, 2005 00:31
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If u can exchange it to a new and check if the problem is the same.
Peace
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Psyrap
Started Topics :
8
Posts :
70
Posted : Jan 14, 2005 00:33
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i dont know if it relates to your monitor, but i tell u a short story with a similar plot, when i bought a firewire soundcard and behringer mixer, suddenly i could hear the mouse every time i scroll down, or even move it on the screen, it drove me nuts for a month, i though something is fucked up in the soundcard, i really investigated into it, and i will tell you what i did which solved the problem, first check also if you put everything on full volume, do u hear other noises besides the mouse, like the fans of the computer, or any weird buzzing sound. noise can be introduced from external sources such as power cables, if you are using balanced cables they consist of a hot line (positive), cold line (negative) and earth. The audio signal is transmitted on both the hot and cold lines, but the cold line is 180 degrees out of phase with the hot. This noise will be identical on both hot and cold lines. So the hot and cold lines carry two signals: a desirable audio signal which is 180 degrees out of phase, and unwanted noise which is in phase.
This is where the trick of balanced audio kicks in. At the input stage when the two signals are moved 180 degrees relative to each other (to get the audio back in phase), any unwanted noise which has been picked up by the cable is moved 180 degrees out of phase. thats it the noise is gone no more doesnt matter how load i put the speakers, there is no noise. hope it helped good luck |
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Psyrap
Started Topics :
8
Posts :
70
Posted : Jan 14, 2005 01:04
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what you do is create a psuedo cable(Jack connection) which means cutting the earth(sleeve) and connecting the cold(ring) to the sleeve. you can try leaving the earthconnected although this can sometimes result in earth loop hum problems. for me it solved the problem, you should read about it maybe you can find better detalis on how to do it, i personally bought a solder and in 5 minuts job;s done!!! goodluck |
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eliran17
IsraTrance Full Member
Started Topics :
51
Posts :
168
Posted : Jan 14, 2005 10:13
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well dont worry man , those "ultra" soft buzz-noise are actuly the computer breath 
now seriously , some time ago i decieded to have fun a nit so i closed the door set up my speakers at full power and startd picking some tracks do mix and i heared those very soft buzzy sounds. i think (almost) sure that it a direct cause of the full-vol. i set to my spekers. cause when i lowerd the vol a bit i could'nt sense it.
<One learns people through the heart, not the eyes or the intellect> |
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Psyrap
Started Topics :
8
Posts :
70
Posted : Jan 14, 2005 15:03
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eliran you are right if you dont hear it when on a normal working volume so it shouldnt really bother you, but still its not normal to hear the computer breath through the monitors, and especially the mouse that is actually irritating, and its very simple to get rid of it.... |
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XrTC
Started Topics :
7
Posts :
720
Posted : Jan 14, 2005 22:05
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this also happens to my brother's studio pc. when i am working on his computer i get really pissed off with the soft "vzzzzt" coming out of the speakers whenever i use the mouse. sometimes i can also hear soft sounds like this, when i insert a dvd and the drive is trying to read it... it's so weird! what is it??? 
psyrap any more info (or a better explanation) would be highly appreciated!!
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Respect is earned, not demanded...
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http://www.myspace.com/xrtcmusic
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Psyrap
Started Topics :
8
Posts :
70
Posted : Jan 14, 2005 23:33
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XrTC can u tell me plz what set up you have in the studio including balanced and unbalnced output and cables used maybe i can help you better
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Digital Syndicate
Started Topics :
5
Posts :
326
Posted : Jan 16, 2005 02:37
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maybe your mixer creating noize?
once I had that before
shed |
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MoDu
Started Topics :
0
Posts :
36
Posted : Jan 16, 2005 16:13
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i've come to the rescue...
The answer is very simple, try muting audio in channels of your soundcard one at a time, you'll eventually find the guily ones: it's usually de cd-audio and mic-in that cause that noise whenever your hard drive is accessed, your mouse is moved, etc...
No need go out jumping at the nearest store to buy balanced connections... even tough it may help =D |
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Jeto
Jeto
Started Topics :
258
Posts :
3252
Posted : Jan 16, 2005 18:22
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MoDu
Started Topics :
0
Posts :
36
Posted : Jan 16, 2005 22:40
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try the same: mute some channels to see if it has any effect. Otherwise, I can't help, happy user of a SB pci 512 =D |
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Psyrap
Started Topics :
8
Posts :
70
Posted : Jan 17, 2005 01:36
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valley boy usualy the problem is using unbalanced to balanced connections with a balanced cable...so check what is connected to what, i told you the best option is done in any professional studio is making pseudo(fake) balanced cables.... it takes 5 minuts.
What is the difference between balanced and unbalanced connections?
A)TS--tip and sleeve (2 conductor) is unbalanced
TRS--tip ring sleeve (3 conductor) is balanced. With balanced cables, you can travel longer distances without picking up hum or noise...
To be sure of maximum noise rejection always use balanced cables, although it doesnt always work....
In many cases, using a balanced (T.R.S. ¼ inch) cable will work, if it doesn’t, try the following… Assuming the mixer or power ampli-fier has mono ¼ inch jacks, rig a custom balanced patch cable by replacing the T.R.S. plug on one end (soundcard end) with a regular mono1/4 inch phone plug. Connect the hot (from tip of T.R.S. ) to the tip of the mono plug. Now twist the unused center lead (from ring of T.R.S. or XLR pin 3) and the ground shield together (solder them to the phone plug’s ground lug. Identify the cable with tape on the plug that has been modified.
i added a picture for you:
http://www.tapuz.co.il/tapuzforum/main/Viewmsg.asp?forum=280&msgid=45943428
as you can see in the picture the connection on the left, the blue cable is connected to the ring, and the earth is connected to the sleeve. you can hardly see that.
on the righti cut the earth completly, and connecte the blue to where the earth was... that simple
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