Having a huntch it is either being over amped because of the xlr ins or the
keyboard putting out some funky signal somewhere. Trying to eliminate the
problem is sort of hard when you have 0 1/4 inch ins on the soundcard.
Really couldn't see paying an extra $600 for 2 1/4 inch ins on a doc.

The cable is new and in good shape. Guess the best I can try is putting RCA
adaptors on the 2 1/4 inch mono ends and doing what DJX recommended.

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Chris Smart
Sent: Saturday, September 18, 2010 6:08 PM
To: JSonar -- JAWS Scripts for Sonar discussion list
Subject: Re: [Jsonar] Getting rid of hum/hiss


I would try getting the correct cables so you can eliminate the 
adapters, just to rule out one variable.
If you can get balanced cables, that might get rid of the hum 
although it isn't a sure thing.

If you have Sound Forge, one of the EQ plug-ins has a preset for 
removing hum that uses four stacked notch filters.

Do you have the Sonitus effects with your copy of Sonar? If so, use 
the Sonitus EQ and set up narrow bands to cut at 60 HZ and 
multiples of 60, 120, 180, etc.  I doubt you're just getting the 
fundamental at 60 HZ; usually there are some harmonics in there as 
well.

But, before filtering with software, which might negatively affect 
the audio you do want to hear, try to figure out where the noise is 
coming from and correct things there, with better cables etc.

Chris


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