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5
votes
1answer
92 views

What causes a buzzing that goes away when I touch the jack?

I'm sure this is a "ground" issue, but I'd really like to better understand what's going on. I have a bass guitar plugged into the "instrument input" on my interface (ART TubeFire 8). When I monitor ...
4
votes
1answer
207 views

What is this incredibly annoying noise?

Hey all, I've been getting this noise out of my set top box, desktop and laptop audio outs into my mixer. I've also tried using usb soundcards out ($5 from ebay) and they don't eliminate the problem. ...
3
votes
3answers
3k views

How to eliminate 50 Hz noise from microphone?

Can anyone recommend a good technique on microphone grounding and elimination of 50 Hz noise? Update This is a simple headphone mic. When I touch mic's body the noise is decreased significally.
3
votes
1answer
145 views

Does a USB Isolator work any different than a powered single-port USB Hub? [closed]

I was looking at buying a USB Isolator; however, I ended up buying a powered four port USB 3.0 instead. It was roughly the same price, has a higher speed, and serves a useful alternative function. Do ...
1
vote
1answer
63 views

Source of ground looping? Different ground for USB and laptop's line out?

I have a Behringer UCA202 (no-external power) USB Interface (DAC): Bus 006 Device 003: ID 08bb:2902 Texas Instruments Japan PCM2902 Audio Codec and an Intel audio controller which is built into ...
1
vote
1answer
133 views

USB Isolators to eliminate ground loop?

I believe I have an issue with a ground loop. I'm looking at some USB Isolators. I found this, Solarbotics model for $48 Would this eliminate ground loop? I have both my both two outputs going to ...
0
votes
1answer
369 views

Why does my sound card output a high pitched sometimes oscillating sound or whine?

I've asked four questions now so I'm out of hints. Excuse this question for it's vagueness... Why the hell is my sound card emitting this high pitched squeal when I run it through a mixer with a USB ...