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Old 17th November 2012, 07:39 AM   #21
i2k92 is offline i2k92  Indonesia
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I never had any noise problem with my music server (intel dn2800mt) until yesterday when I installed a PCI-E USB-3 card. I can hear some noise whenever I did something to the system. Somehow it's solved by installing new driver for the PCI-E card.
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Old 19th November 2012, 10:51 PM   #22
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Thanks again for all your help guys.

So if I wanted to use an audio isolating transformer (like this one Ebtech 2-Channel Hum Eliminator | GuitarCenter) I would just plug directly from the Julia>Transformer>Speakers, yes? The outputs from the Julia are considered "line level"?
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Old 19th November 2012, 11:32 PM   #23
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salvage a transformer from an old modem card. wont be the best quality, but will get you testing. some of those audio transformers are expensive!

I have yet to come across a mains powered desktop/tower system that didnt make noise.
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Old 20th November 2012, 12:38 AM   #24
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I guess this link sums everything up nicely... I'm ashamed to post a link from Apple but here we go:

Macintosh: Solutions for noise in the audio signal
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Old 20th November 2012, 06:13 AM   #25
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If you google about this problem you'll see Sandy Bridge motherboards and PCI soundcards are not friends. Many people complain. It seems to be due to the fact that PCI is emulated from PCI express. PCI standard is disapearing and manufacturers don't bother about the marginal use of soundcards.
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Old 25th November 2012, 01:56 AM   #26
dangus is offline dangus  Canada
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If the card has an S/PDIF output, connect that to a DAC or AV receiver. Is it noisy as well?
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Old 29th November 2012, 11:56 PM   #27
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Update:

I purchased this (after discussing my specifics with the manufacturer, mind you):

Ebtech 2-Channel Hum Eliminator | Musician's Friend

And the static/noise is still there in the same capacity!!! :-(
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Old 30th November 2012, 01:25 AM   #28
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You will probably need an adapter, but TOSLINK optical does away with ground problems once and for all.
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Old 30th November 2012, 01:27 AM   #29
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Quote:
Originally Posted by Soldermizer View Post
You will probably need an adapter, but TOSLINK optical does away with ground problems once and for all.
I can go optical out from my sound card to trs in on my monitors? Digital to analog converters? Any guidance? Thanks for the input.
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Old 30th November 2012, 05:30 AM   #30
phofman is offline phofman  Czech Republic
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Quote:
Originally Posted by danieljay View Post
Update:

I purchased this (after discussing my specifics with the manufacturer, mind you):

Ebtech 2-Channel Hum Eliminator | Musician's Friend

And the static/noise is still there in the same capacity!!! :-(
Many days ago I asked you to hook any passive headphones/small PC speakers to your soundcard jacks and listen if the noise is still there. That test will show if the noise is present at the soundcard input (you will hear it in the headphones) or if it is some kind of ground loop problem (you will not hear the noise in the headphones since they have only single pair of connecting wires and no ground loop can occur).

Problems need to be diagnosed first, before taking corrective actions.
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