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Topic: Humm Randy Beavers Had the Correct Answer, Thanks Randy G. |
Randy Gilliam
From:
San Antonio, Texas, USA
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Posted 11 Feb 2010 6:37 pm |
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I am Getting a Humm. I Went To Record a CD. and When I Unplug My Power Supply For The Reverb It Goes Away, I Bought a New One Spot and Still Getting The Buzz, When I Play On Stage The Volume Of The Steel Covers It up. Any Suggestions, thanks Randy G.Useing a Stereo Steel Preamp and Two TC Furlong Powered Speaker Cabinets.Emmons PP 74 
Last edited by Randy Gilliam on 16 Feb 2010 7:24 pm; edited 2 times in total |
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Paddy Long
From:
Christchurch, New Zealand
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Posted 11 Feb 2010 6:58 pm
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If your reverb uses a wall-wart power supply it could be coming from that !
_________________
14'Zumsteel Hybrid D10 9+9
08'Zumsteel Hybrid D10 9+9
94' Franklin Stereo D10 9+8
Telonics, Peterson, Steelers Choice, Benado, Lexicon, Red Dirt Cases. |
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Clete Ritta
From:
San Antonio, Texas
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Posted 11 Feb 2010 7:37 pm
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Randy,
Youve got a ground loop somewhere.
First off, I suggest recording dry and adding reverb after, when mixing.
(You didnt say how you are recording it.)
Are you setting up mics? Is it a live recording with a group?
More details please.
Start by process of elimination. Or in this case, the reverb unit.
If you are recording to a PC, use software reverb in post, so you can hear it while recording, but are capturing the dry signal from the mic or direct.
Actually, if you can, split your steel VP outputs, one to the amp thats miked, and the other direct to recording. This way youve got two clean recording tracks. Youre almost guaranteed a great clean signal if its direct from the source!
You have more control of the final sound in post, from completely dry to cavernous cathedral. Plus the stereo reverb in most software today (Waves for example) sounds way better than one can possibly capture live.
Anyways, I'd love to hear it when youre done. Let me know, huh?
Clete |
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Butch Pytko
From:
Orlando, Florida, USA
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Posted 13 Feb 2010 5:13 pm What is GROUND LOOP?
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Clete,
Can you please explain what GROUND LOOP is? I have a humm too, but my situation is totally different. Did you happen to see Randy Beavers post--"Tuner out for your volume pedal"? I added a 3rd jack to my Emmons VP & in the wiring circuit--following Randy Beavers directions--I connected a 1 meg resistor. That jack is supposed to be a tuner out only. I'm plugging in my Strobostomp 2, which is powered by a 1 Spot adapter. The tuner works perfectly, but I'm getting a humm in a crazy way. When I have the VP in the off position, there is a humm. When I open up the VP slightly--the humm stops. If the tuner works, I don't see how I could of wired it wrong. Any ideas? |
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Bob Grado
From:
Holmdel, New Jersey
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Randy Gilliam
From:
San Antonio, Texas, USA
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Posted 15 Feb 2010 3:56 pm Butch Me Too
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Butch That Is Exactly What I Have a One Spot Power Supply, Vol Ped. off It Hums and Goes away When You Give It the Gas. If You Figure It Out Before I do let Me Know Thanks Randy G. Clete We Were recording In A studio with a Band. Randy G.  |
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Rich Santucci
From:
Perkasie Pennsylvania USA
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Posted 15 Feb 2010 4:57 pm
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| try running the reverb on a battery if that is possible. If the hum goes away, its your adapter. Try moving the adapter further away from the guitar. It could be inducing hum into the pickup. |
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Jack Stoner
From:
Kansas City, MO
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Posted 16 Feb 2010 5:14 am
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There are a lot of possibilities for hum and/or a ground loop hum. You have to take one step at a time.
The first thing is the amp without anything plugged into it. If there is no hum there then start working back, one device at a time. When I was doing amp repair I used to get a lot of hum problem complaints and rarely was it the amp, it was always some other reason.
As previously mentioned with battery powered devices, use the battery and not the AC power adapter and see if that makes a difference.
Bad or poor quality guitar cords can also be a source of hum. I recently had a low level hum problem that turned out to be a poor ground on one of my George L's cables (fixed by cutting off and reconnecting the end that was bad).
Single coil pickups in Pedal Steel's are a prime source of hum (not ground loop hum as that's different).
A ground loop hum is technically a difference in "potential" between the ground in one device and the ground in another device that it's connected to. |
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Randy Beavers
From:
Lebanon,TN 37090
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Posted 16 Feb 2010 7:07 am Jack Location
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This may not have anything to do with it but, when using a small profile pedal like a Zum or similar, it's important that the location of the tip side of the jacks be positioned correctly. It could be placed in a way that when the pedal is in the off position it grounds out one of the leads.
You also have to be careful on open bottom pedals where carpet fibers can get to the jacks. I once played an outdoor gig where I sat up on the grass. It caused a direct short. I wound up putting a piece of thin plywood under the pedal.
I hate to hear about problems with the One Spot, that's what I use. |
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Ken Metcalf
From:
San Antonio Texas USA
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Posted 16 Feb 2010 8:20 am
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Sounds like a nut loose on that thing to me HA!
Good luck and Thanks Randy
Ken
_________________
MSA 12 String E9th/B6th Universal.
Little Walter PF-89.
Bunch of stomp boxes |
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David Dunn
From:
Hideaway , Tx USA
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Posted 16 Feb 2010 11:44 am Hmmmm noise
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Randy,
Every time I see them pretty girls in San Antonio, Austin, and Round Rock, I start hearin' things too !!!
Take your glasses off and the noise will go away !!!
Your Pal..........Dave |
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Randy Beavers
From:
Lebanon,TN 37090
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Posted 16 Feb 2010 11:59 am
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David, it's kinda like, "Listen... Do you smell that?"  |
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David Dunn
From:
Hideaway , Tx USA
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Posted 16 Feb 2010 3:18 pm Hmmm
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Randy B,
Brother Gilliam and I have swapped and horse traded a bunch of guitars and amps over the last few years, and he is really a good guy.
I just couldn't resist an opportunity for a
smart-*ss remark..........
Dave |
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Randy Gilliam
From:
San Antonio, Texas, USA
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Posted 16 Feb 2010 6:55 pm Thanks
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Thanks, I am Playing at the Rodeo Wed and I Will Try and Figure it out, I Think Its The Reverb Pedal, Randy G.  |
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Randy Gilliam
From:
San Antonio, Texas, USA
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Posted 16 Feb 2010 7:23 pm Randy Beavers Is Correct!
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Randy I Was Useing a Plug in the Vol. Pedal With a L End and It Was Causing The Ground Humm, David I am Healed From Our Last Deal I am Ready For some More Punishment Ha Ha , Your the Greatest Brother Dave Dunn, Randy G.  |
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