Hi, I live in the City, and ive started picking up this noise on my preamps, Redhead, and my audio interface pres. WTH is that? Its erratic, but constant. Maybe we can have a laugh and pretend its aliens, but id like to eliminate it from my studio, because all that extra noise gets recorded! Any ideas?
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HELP! FIXED Electrical noise interference
- Thread starter Mistahbenn
- Start date
Are you getting it with no instrument or other device plugged into the inputs? Pickups, especially single-coil pickups, will act as antennae to some degree. Is this happening in one place, like home/studio? If its coming from all those different devices without an instrument/antenna plugged in, I'd guess you're getting it through your power connections somehow. Is there a common power strip being used? Can you "lift" (disconnect via a 2-prong adapter) the ground to the power strip or to one of your devices?
Yes that is with nothing connected.The Redhead picks it up from other outlets in the apartment too...
I just got a power distributor (ART PB4x4) which my studio is hooked up through, and i hear the same interference..., Must be my power supply, or some kind of antennae on a roof?
I just got a power distributor (ART PB4x4) which my studio is hooked up through, and i hear the same interference..., Must be my power supply, or some kind of antennae on a roof?
Has any new comms equipment been installed near your living space? New cell phone equipment, new public wifi, etc. Someone new living close to you or someone installed something new?
- John
- John
The power distributor will filter out a some kinds of crap, but not everything. Have you tried disconnecting the ground lead (not normally recommended, I know, but, you know, science)? Conversely, do you know that you've actually got a proper ground on your wall sockets? It's amazing how many 3-prong wall sockets I've taken apart and discovered that there was in fact no ground wire.
N00b question, how do i check the ground/earth.. I get the same thing from every outlet...So it must not be grounded at the main box?
The first audio clip has noise that starts and stops, and sounds to me like it might be ground noise from some misbehaving piece of electrical equipment elsewhere in your building. If that were true, then you would get the same noise regardless of which of your sockets you plug into. The professional way to fight that would be to use an isolation transformer (which your ART unit is not), but a quick way to test would be to disconnect your gear from the building’s ground, e.g. by sticking one of those orange three-prong to two-prong adapters between the power cord and the socket. Removing the ground may make you vulnerable to other noise, so take care to start with no volume and turn up the gain gradually.
Not ground noise, then, but the first clip sure sounded like noise from a device running and stopping. Do you have an AM radio to see if it gets interference as well?
wmhill
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I got some of these but we’re too small... think the right size would help me? I think it’s a more serious simpler issue just need to find the source..
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Why are people OK with this?
Get a 3-prong outlet testor at a hardware store for $3-5 and start there. Find the source and deal with it. Noise gates are another commonly suggested item. These are people who think spraying Fabreeze is "cleaning".
Im off to HD right now, and will pick up an AM radio after that. HAVE to fix this problem!!!
I have to unplug the refrigerator in my studio when I record. The first section of your recording reminds me of that.
And I had to replace the CFL bulbs that were on the same circuit as my mixer with LED or incandescent. They injected noise similar to yours.
The switching power supply for my laptop injected noise. Lifting the ground on just that device worked. I eventually switched to a different computer.
Some bass amp DIs are noisy. I can't use certain ones.
And I had to replace the CFL bulbs that were on the same circuit as my mixer with LED or incandescent. They injected noise similar to yours.
The switching power supply for my laptop injected noise. Lifting the ground on just that device worked. I eventually switched to a different computer.
Some bass amp DIs are noisy. I can't use certain ones.
Also a great point to make. What else is using power on the same circuit as your gear? Anything with a fan or compressor will make noise. I would check the fuse box...it might have small diagram if you're lucky.
A Furman style power conditioner sounds a great investment. Anything that balances your power (think of what a compressor pedal does to volume spikes).
