Gary I forgot to ask you where I start looking for an impedence
mis-match in my system?
Thanks,
John
On 9/10/2013 10:14 PM, Gary Schindler wrote:
That doesn't sound like an AC line problem. If you had an AC line
problem you would hear a 60 or 120 HZ hum. it wouldn't be high pitched.
It may be noisy circuitry in your mixer, coupled with a cabling
problem, such as poor shielding or an impedance mismatch.
----- Original Message ----- From: "John Chilelli" <j...@neo.rr.com>
To: "PC Audio Discussion List" <pc-audio@pc-audio.org>
Sent: Tuesday, September 10, 2013 5:48 PM
Subject: AC line filter question
Hi all,
I am experiencing some sort of high pitch line noise in my
recordings. I am using an Allen - Heath mixing board with a usb
interface into my Windows 7 computer using Audacity 2.0.4. I was
told that I should look into an AC line adapter, but I'm afraid that
the entire electrical system for tha room I am using is on one
circut, including overhead lights and fans. I wish to be able to get
rid of this line noise that exists even with the overhead fan off.
Can anyone make a good suggestion as to what I should do for this
problem?
Thanks,
John
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