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feedback hum into stereo receiver

Forum CPU & Components : Sound Cards - feedback hum into stereo receiver

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dbraller   05-11-2002 at 09:52:03 PM

I want to run my computer's audio out into my stereo receiver. However, when I run an RCA to 1/8" from my computer to stereo, I get a feedback hum. I suspect I may need shielded cables. Can anyone help me confirm the fix?

FYI, I am using my motherboard's onboard audio. It's a Soyo P4 Dragon Ultra.

Thanks!

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AMD_cErTiFiEd   05-13-2002 at 07:18:27 PM
- 0 +

I use sheilded oxygen free cables. But r u using line or speaker out. Speaker out is usually amplified, and that can cause a hum

Blame the newbies not the technology

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dbraller   05-13-2002 at 07:32:56 PM
- 0 +

It's a line out, not a speaker out. At least, that's what the motherboard manual calls it. If it is a speaker out and misnamed however, how would I remedy the hum? Thanks for your help.

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AMD_cErTiFiEd   05-13-2002 at 07:43:16 PM
- 0 +

Onboard sound is usually Line in/ mic in/ speaker out. But not always, check the manual. Turn down the master to half so u can reduce the signal to your amp

Blame the newbies not the technology

Reply to AMD_cErTiFiEd
  05-13-2002 at 10:21:59 PM
- 0 +

"Hum" as you have called it, usually means 50/60 Hz sound. This is usually caused by (unwanted) ground loops in audio circuits.

Try connecting the PC and stereo to the same house circuit, ie plug-ins on the same breaker.

This little discovery has saved my sanity.

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