View Full Version : Random popping static noise in speakers (Solution)
10-06-2000, 08:23 PM
I have a Sound Blaster Live sound card and a really good set of speakers with a sub-woofer. A while back I started noticing a popping static noise in the speakers. It was totally random and occurred even when there was no sound being played through the speakers. I tried everything I could think of and also searched the net with no success. Other people that used the computer did NOT experience this problem. Everytime I would use the pc it frustrated me to no end when it would start popping. I finally realized that it was my cellular telephone transmitting! http://www.PCGuide.com/ubb/smile.gif I have it with me at all times. The solution? Cut the cell phone off!
I realize that this is not exactly a computer problem, but someone that experiences it may look here. I hope this may help someone. It sure took me a while to figure it out.
10-10-2000, 10:00 AM
Actually I have had this once with a user with a Laptop who was complaining that his Presentation was ruined by said popping. I told him he would need to switch off his mobile or keep it away from the Laptop while the sound was on.
His reply .......
"Dont you know who I am .. this is unacceptable I need my mobile close to me at all times, I suggest you stop relying on "hotch potch theories" and do your job correctly" ...... Go Figure (he was the CEO by the way.
I live close to a HWY and I used to have alot of trouble with CB radio bleeding in on me. I talked to a local tech and he said it was because I was using a non sheilded VGA cable. I tried one and no luck. Then I saw the movie enemy of the state. Thats when I decided to put up small chicken wire
on the walls floor and ceil;ing. I then grounded the mesh and guess what?
No bleed thru by 8 BALL.
Stay alert, stay alive!
Yeah, I used to do alot of live audio and recording work in college so here are a few things that should help one and all:
1. Anything that uses electricity can produce a magnetic field.
2. You combine magnetic fields together strange and unpredictable things can and will happen!
3. Computers can be extremely sensitive to these interferences.
So lesson learned use some common sense around computers (like don't put large speakers near your hard drive to turn off cell phones while on the computer.) Remember a CPU is operating on XXXMHZ this is a measurement of frequncy (it doesn't matter clock cycles volt whatever it is still electrical) A cell phone is on a XX MHZ band. Some "simple" trigonometry will show that the two frequncies can interact with some very weird results! Basic physics says that radio, electrical, magnetic etc are all related (i.e. the elctro-magnetic spectrum). Why do you think everything computer related has those FCC warning labels on them?
Enough ranting for now, just remember that "random system crash" that ruined a three day presentation prep might just have been your pager going off!
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