speakers BUZZZZING!!!

[falingstar]

Very strange but true situation:
I've been having problems with a terrible (very, very loud) buzzing noise that comes from the speakers on my pc. It doesn't change when volume is turned down either. Have to shut speakers off completely. Speakers also make popping noise when computer is off. This seems to happen when other appliances in the house kick in such as the frige or furnace. Could it be sound card or or how electricity is configured through out the house causing interference? There doesn't seem to be a pattern. Will work fine for a while and then...BUZZZZZ!!! It's very annoying. Please help!!!
Thanks!

[-steve-]

I used to have that prob with an old PC,
whenever the fridge, heating stat or any other electrics cycle on/off the speakers would crackle and pop!
Mains borne interference is a pain, never did solve the trouble, luckily this laptop seems ok, wonder if you can filter the supply to your computer? I'm sure these devices are available.
Good luck, someone here's bound to know the answer.
Cheers,
Steve.

[Murf]

It has to be in the house wiring, your computer must be plugged into the same circuit as the appliances, try a different plug, if you can find a different circuit, may solve the problem.

------------------
Murf

Visit-Murf's Windows Garage

But if it ain't broke - "Break It" - So we can help fix it!

[fink]

Try plugging headphones into the speaker out jack of the soundcard (unplug speakers completely) and see if the buzz is still there.

If the buzz is gone then it would be a good idea to try and isolate the speaker power supply source. An AC filter as suggested may work but you can also try to reverse polarity [turn the ac plug around on the speakers (ONLY!! not the PC)] or if the speakers don't run on a walwart type (ac->dc) adaptor) then try lifting the ground on the speaker ac plug using a cheater.

If the speaker plug doesn't already have a U-ground connection ( the 3rd U shaped ground connector) then try using a wire to ground some metal part of the speakers to the little screw holding the cover plate of your AC wall plug.

EDIT> hey Murf! what are you doing home on a Saturday night?.. prolly same as me.

[This message has been edited by fink (edited 10-20-2001).]