Steenamaroo
...
Hey all.
Did some recording in my garage setup the other day but was plagued by background hum that sounded like your mains hum.
The hum becomes more/less intense depending where i move the mic around the room, and obviously increases greatly as I move towards equipment with transformers etc.
I tried different inputs, different cables, different mics etc with the same result.
Instead of ripping stuff apart I went and got my macbook and firestudio mobile from the bedroom.
There's no problem with hum on that setup in the bedroom unless i literally hold the mic a few inch from a wall wart or something. Normal i figure?
So i take that to the garage, fire it up, and boom. There's my irritating hum.
Now, this macbook/firestudio setup is completely battery powered and not integrated with any mains gear at all so that takes ground loops out of the equation.
I only get this hum using dynamic mics (tested re20,re11 and sm58). Signal is absolutely clear using a little naiant omni condenser.
Even if i move the mic (dynamic) out to the middle of the room the hum is still there. Sure it's pretty distant but it's enough to annoy you.
I went around turning stuff off, no lights, no computer monitors. Shutdown everything except for my computer.
This did change the intensity of the hum but didn't eradicate it so my question is..
Is this normal? Have I just not noticed it before?
It seems like something I would have picked up on but I can't think of anything that's changed outside in terms of gear or wiring.
Thanks all.
Did some recording in my garage setup the other day but was plagued by background hum that sounded like your mains hum.
The hum becomes more/less intense depending where i move the mic around the room, and obviously increases greatly as I move towards equipment with transformers etc.
I tried different inputs, different cables, different mics etc with the same result.
Instead of ripping stuff apart I went and got my macbook and firestudio mobile from the bedroom.
There's no problem with hum on that setup in the bedroom unless i literally hold the mic a few inch from a wall wart or something. Normal i figure?
So i take that to the garage, fire it up, and boom. There's my irritating hum.
Now, this macbook/firestudio setup is completely battery powered and not integrated with any mains gear at all so that takes ground loops out of the equation.
I only get this hum using dynamic mics (tested re20,re11 and sm58). Signal is absolutely clear using a little naiant omni condenser.
Even if i move the mic (dynamic) out to the middle of the room the hum is still there. Sure it's pretty distant but it's enough to annoy you.
I went around turning stuff off, no lights, no computer monitors. Shutdown everything except for my computer.
This did change the intensity of the hum but didn't eradicate it so my question is..
Is this normal? Have I just not noticed it before?
It seems like something I would have picked up on but I can't think of anything that's changed outside in terms of gear or wiring.
Thanks all.