very loud hum in backround

[harstn]

hi im setting up live feeds and im having a little problem and would appreciate any help if you could listen to my feed there is a very loud hum in the background and i don't know how to fix it thanks a ton

[ScanPEI]

Originally Posted by harstn

hi im setting up live feeds and im having a little problem and would appreciate any help if you could listen to my feed there is a very loud hum in the background and i don't know how to fix it thanks a ton

Hums in the audio can be caused by many different things. It could be, for example, your antenna, audio cable, interference, ect. However, there are ways to fix or reduce this hum. You can get a Ground Loop Isolator, available at Radio Shack for $16.99, and this might solve the problem. I also have a hum in my audio, but only when it rains and its caused by my outdoor antenna. However, the hum is not loud enough to really affect the audio and is really only detectable during silence. Hope This Helps!

[N_Jay]

Hum only when it rains says you have a ground problem.

[harstn]

THANKS EVERY ONE FOR THERE SUGGESTIONS it looks like i found and fixed the problem it was the outlet that computer was plugged into it didn't have a good ground so i just plunged my computer into a different outlet and now its crystal clear.

[N_Jay]

The trick to finding ground loos is to temporarily break and add grounds looking for changes.
The areas to be concern are any cable where the ground is connected at both ends, such as audio cables, antenna cables, and data cables, and cables connected between devices that have their own ground points, such as power supplies.

Additionally, sometimes the hum is not a ground loop, and is just power supply hum or digital noise from one of the components.

[ScanPEI]

Originally Posted by N_Jay

Hum only when it rains says you have a ground problem.

So, the best way for me to get rid of that, is to ground it. Its a fairly old antenna, so I thought it should have been already grounded. But I'll check that out!

[N_Jay]

Originally Posted by scannerkid

So, the best way for me to get rid of that, is to ground it. Its a fairly old antenna, so I thought it should have been already grounded. But I'll check that out!

The best way is to find the problem and fix it.

My guess is you have very little ground when it's dry and the water is "fixing" the ground, and showing up a ground loop.

[XTS3000]

Use a 1:1 transformer on the audio input to the computer to isolate and prevent ground loops. problem solved.

[N_Jay]

Originally Posted by XTS3000

Use a 1:1 transformer on the audio input to the computer to isolate and prevent ground loops. problem solved.

That is what a ground loop isolator does, and it might or might not work depending on the specific problem.