Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: [Doepfer_a100] Ground loop hum?

2009-06-14 by Bakis Sirros

yes, it happens with my laptop too, even if i have the audio interface powers from its own psu...

so, when i want to record audio in the laptop,  i just unplug the laptop from the mains and power it from its battery....

Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist

[Doepfer_a100] group owner

www. parallel - worlds - music. com

www. myspace. com/ parallelworldsmusic

www. myspace. com/ interconnectedmusic

www. myspace. com/ memorygeist

www. DiN. org. uk

www. musicamaximamagnetica. com

www. shimarecords. co. uk

www. rubberrecords. gr

Athens - Greece

--- On Sun, 6/14/09, Florian Anwander <fanwander@mnet-online.de> wrote:

From: Florian Anwander <fanwander@mnet-online.de>
Subject: Re: [Doepfer_a100] Ground loop hum?
To: Doepfer_a100@yahoogroups.com
Date: Sunday, June 14, 2009, 3:08 PM











    
            
            


      
      Hi Peter



> If I plug headphones directly into a module's output then I don't hear it. When I plug the module's output into my audio interface, then I get the noise/hum. This is what leads me to believe it's a ground loop. Am I correct? If so, how do I remove it safely? A DI box with a ground lift feature?

I assume it is an interface, which is powered via the datacable from the 

computer. If i am right, then the solution will be either powering the 

interface via an separate powersupply, or connect the Doepfer to the 

computers interface via an passive DI split box (means ot 

electronically, but true split with a transformer) .



This problem happens very often with computers with separated LCD 

monitors (e.g. at our sessions it happes to two persons with Apple 

MacMini plus monitor), but also sometimes with laptops.



Florian


 

      

    
    
	
	 
	
	








	


	
	


      

[Non-text portions of this message have been removed]

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.