I have connected an external amplifier with sound card of my PC, it creates disturbing sound even if my PC is off. I have checked my amp by connecting with other devices, it works fine. please help
2006-09-15 02:59:06 · 6 answers · asked by I am what I am 1 in Computers & Internet ➔ Hardware ➔ Other - Hardware
I have checked my PC with a testpen, there are no grounding problems. I have also tried connecting my Amp & PC at the same power outlet. I have checked the stereo out of my Sound Card. My amp does not creates disturbing sound when I connect with a casette player. My PC works fine when I connect with small computer speakers. So where is the problem?
Maybe there is some kind of disagreement between my PC & amp.
NOTE: Amp creates noise even if my PC is off & wire is connected to the sound card. I have checked that wire with other devices, it works fine. Please help.
2006-09-17 19:58:23 · update #1
What is the disturbing sound? Please describe it. Does it make the sound if you pull the PC's power cord from the wall? If so, your PC and amplifier are having some sort of power disagreement. Try plugging the amplifier into the same electrical outlet as the PC. If the sound does not go away when you unplug the computer's power, then disconnect the cables attached to your PC one by one and see if the sound goes away. That should help you figure out where the sound is coming from.
2006-09-15 03:08:39 · answer #1 · answered by pvreditor 7 · 1⤊ 0⤋
When your computer is off, it is normal for the amplifier to make a noise, because the hot wires aren't connected to ground in this situation.
If the disturbing sound continues after you start your computer, this might be because the level of the signal that cames from the computer's sound-card is too high (try to reduce it's level by turning down the "Volume control" slider in "Volume Control" application) or because the impedance of the sound card's output doesn't match the one of the amplifier's input (use an impedance addapter to correct that).
2006-09-15 03:07:31 · answer #2 · answered by Bogdan 4 · 0⤊ 0⤋
Any amplifier will do the trick. You simply take a lead with the correct connections plug into back of PC and then into the Stereo/Amp/Video/TV audio inputs. This lead should cost about £1.99 max. I would try Richer Sounds for your amp & speakers if your in the UK. They will also be more then willing to supply you with the correct connections, cables and leads, just ask the sales assistant, they know their stuff, unlike other high street electrical stores, Dixons/Currys/Comet/etc.
2016-03-27 02:17:09 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Make sure Your computer is properly grounded. Check it with a testpen. Touch Your casing bolt with testpen. If the testpen lit on, then your computer not properly grounded.
Ask an electric technician or if you know how, do it yourself. Good luck.
2006-09-15 03:08:10 · answer #4 · answered by Moses Arthesi 1 · 0⤊ 0⤋
It's grounding out somewhere, check your wires, replace bad cords/wires where necessary.
2006-09-15 03:06:46 · answer #5 · answered by Life after 45 6 · 0⤊ 0⤋
i think there is some leakage current in u r amp.check it.due to the energy stored in inductor(speaker coil).
2006-09-16 06:12:47 · answer #6 · answered by thiru g 1 · 0⤊ 0⤋