Computer sounds(feedback)

[marklwood]

Originally Posted by captnkarl

What is meant by internal microphone??

In your hardware audio properties under Volume/Advanced, you will find some sliders to set individual volumes for certain devices. Mic should be set to lowest volume or off. I set my line in and CD to zero also.

Originally Posted by captnkarl

Thanks for the help and keep the sugestions coming please.

The other thing is, are you using wireless microphones? They are susceptible to interference also.

[captnkarl]

I disabled the mic and also muted it and that doesn't work either. It just doesn't make sense why I get that sound only when it is plugged in???? Also, that sound comes even when my cordless mics aren't hooked up to the system. Thanks everyone for the ideas and keep em comin.

[bobcox- with the Lord]

Get the little 3 prong to 2 prong adaptor, and use on laptop.
see if that helps.

[marklwood]

Originally Posted by bobcox

Get the little 3 prong to 2 prong adaptor, and use on laptop.
see if that helps.

That is a good idea, but I would only do this for testing purposes. If that is indeed the problem, come back and ask about isolating the ground.

[captnkarl]

Bobcox, you're a genius...that worked great. Now the only thing left is a slight hiss, but it is way better than that feedback sound and might not even be heard in the bars. Thanks so much and I will keep looking on this forum and maybe help someone else someday.

Is it a problem to run this way all the time??

[ddouglass]

That goes right back to what I was saying. Apparently they do not have the outlets grounded correctly.

[captnkarl]

That may be, but I have the same problem at home and I know that all my outlets are grounded properly cause I did the wiring myself. Is there something that I can get to clean up the power in the bars that I'm playing at??

[bobcox- with the Lord]

Originally Posted by captnkarl

Bobcox, you're a genius...that worked great. Now the only thing left is a slight hiss, but it is way better than that feedback sound and might not even be heard in the bars. Thanks so much and I will keep looking on this forum and maybe help someone else someday.

Is it a problem to run this way all the time??

I have been doing it for years. no problems, Bob

[Lonman]

Originally Posted by captnkarl

Bobcox, you're a genius...that worked great. Now the only thing left is a slight hiss, but it is way better than that feedback sound and might not even be heard in the bars. Thanks so much and I will keep looking on this forum and maybe help someone else someday.

Is it a problem to run this way all the time??

It is a real danger risk. There is a ground for a reason. It can be done to test - your feedback was a 60hz hum. But wouldn't use it for any long term. On the rare occurance that something happens where a spike turns up in the system, normally would go through the ground, without it, it will now find it's way to the electronics or worse the person touching the electronics. This is an old sound man's trick to eliminate hum from amps in clubs that would create it, but not recommended anymore.
The Ebtech unit linked to earlier (wrong link btw) is a safe way to eliminate the hum without hurting the grounding connection. http://www.ebtechaudio.com/humxdes.html Those 3 prong to 2 prong adapters aren't meant for eliminating the ground, the little tab that gets bent back (for those trying to lift it) is supposed to get screwed into the middle plate screw on true 2 prong only (no ground) plugs in older buildings.
The eliminator is not much at most music retail stores. But the equipment or life you save could be your own - yeah most are lucky and nothing happens, but there is always a chance once the protection is not there!!!

[billyo]

in my opinion, he's better off getting a hum eliiminator instead of a 3 prong to 2, he can get one at radio shack for $15.00 ,theres a danger in using that type of an adapter (3 prongs to 2 ), not just for him and his equipments and not to mentioned the people around him..this is just my opinion..