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Audio Feedback

 
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camination
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Joined: 22 Feb 2006
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PostPosted: Fri Apr 07, 2006 12:50 am    Post subject: Audio Feedback Reply with quote

I plugged my mac to my LCD RCA outputs and there's a slight buzz which i think is feedback . . . does anyone know how to get rid of this?
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curt
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PostPosted: Fri Apr 07, 2006 1:02 am    Post subject: Reply with quote

I hear the same buzz when audio is amplified. The only thing that seems tp help is turning the volume down on my receiver/TV and controlling the volume though the Mac mini itself.
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SOCOMRAIDER
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PostPosted: Mon Apr 10, 2006 1:05 pm    Post subject: Reply with quote

Use a Griffin iMic. It will connect thru USB and will have zero feedback.
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camination
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PostPosted: Wed May 17, 2006 8:26 pm    Post subject: Reply with quote

i just got the iMic and I still get feedback

is it due to all the audio cables and electrical cables touching each other behind the television? I really want to get rid of the feedback . . . the more i think about it, the more i hear it!
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PostPosted: Wed May 17, 2006 10:40 pm    Post subject: Reply with quote

hmmm... describe all the cables, power sources, other transmitting devices near your audio cable. Everything including like say a TV and/or a router (wireless one).
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justdisguy
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PostPosted: Fri May 19, 2006 5:21 pm    Post subject: Reply with quote

I'm doing the same thing, and had the exact same problem. After doing a bunch of online research I discovered what is known as "ground loop hum."

I solved the problem by grounding my stereo receiver (it just had a two pronged plug) and by inserting a ground loop filter on the audio cable (like $15 at radioshack). Oddly, if I turn on certain lights in my living room, the hum comes back...

I grounded the stereo by taking some speaker write, attaching it to metal on the unit and wrapping the other end around the groud plug (3rd prong) of another plug. Not the most elegant solution, but it worked.

Good luck!
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