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    Pioneer ProDJ Forums    Forums  Hop To Forum Categories  Pioneer Related  Hop To Forums  DJS and Controllers    Noise from monitors when cdj 400 conected to laptop?
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9AV
Pioneer Newbie
Location: Eire
Registered: 16 November 2008
Posts: 3
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alright, can someone help me out here?

There is computer signal noises coming from my monitors (Stanton atm.6). When i connect my cdj 400`s to my laptop.
I have the speakers conected through rca connections. Would getting a xlr connection or moving the speakers solve this problem, or is there a way of stopping the distortion? Has anyone else had a similar problem?
Thanks!
Pioneer Freak
Picture of djjay
Location: SoCal
Registered: 02 July 2003
Posts: 8393
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Try different cables first. I haven't had issues like this, but it sounds like a slight ground loop or hum. Are you using an internal/external soundcard.


Pioneer National Trainer & Product Specialist
9AV
Pioneer Newbie
Location: Eire
Registered: 16 November 2008
Posts: 3
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i`m using an internal soundcard but was just reading about the ground loop in a previous topic just there, seems a 2 prong power supply worked. gonna try that tomorror see if it works!
thanks Smiler
Sanity cleansed daily.
Picture of Pulse
Location: Vancouver, Canada
Registered: 24 October 2006
Posts: 22813
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The grounding pin exists for a reason. DO NOT remove it!

You might try reversing the polarity of the mixer's plug (flip it over in the outlet) or try unplugging the power supply for your laptop to see if that removes the hum.


Pioneer National Trainer // Product Specialist
9AV
Pioneer Newbie
Location: Eire
Registered: 16 November 2008
Posts: 3
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Thanks Smiler Unplugging the laptop did stop the hum but now ive another problem in that i need my laptop plugged in for use with the whole set up. Is there a way around this? i`ve tried using different sockets in the house but still get the same sound back each time Confused !
Sanity cleansed daily.
Picture of Pulse
Location: Vancouver, Canada
Registered: 24 October 2006
Posts: 22813
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What that's telling you is you have a ground loop - more than one grounded item is creating a connected circuit which is acting as an antenna for 60Hz hum.

Have you tried connecting the audio gear to the same outlet (power strip) as the laptop? Perhaps an external soundcard might help towards a solution - internal cards are notoriously noisy.


Pioneer National Trainer // Product Specialist
The DJ formerly known as Steele
Picture of RyanJ
Location: Calgary, Canada
Registered: 21 October 2003
Posts: 3850
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You can also think about getting a ground loop isolator - it's a little device you plug in between things that are causing ground loops. They're (supposed to be) sonically transparent and for like $50 they're one of the best things in your sound engineer's toolkit. Not a permanent solution (best to try to eliminate the ground loop rather than isolate it) but it works.

-r-
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    Pioneer ProDJ Forums    Forums  Hop To Forum Categories  Pioneer Related  Hop To Forums  DJS and Controllers    Noise from monitors when cdj 400 conected to laptop?