[ddots-l] Re: [Bulk] Re: [Bulk] Re: Inquiry: Noise reduction Tools

No presumption should be made that costs money. First do some sleuthing by 
re-routing cables and checking grounds, etc. A 1kHz signal could also be the 
4th harmonic of the ac line so that's the lowest-cost activity at this 
point - check all the ac sources for coupling and grounding.

Then you might try substituting some other audio output device in place of 
your sound card to see if the source of noise is in your computer, or 
somewhere after the insertion point.
adding RF chokes on

Dave Carlson
Tastefully composed and transmitted from somewhere in the Western United 
States, using a Dell Latitude E6520 and Windows 7


----- Original Message ----- 
From: "Bobbi Blood" <phantomess666@xxxxxxxxxxx>
To: <ddots-l@xxxxxxxxxxxxx>
Sent: Monday, March 19, 2012 15:02
Subject: [Bulk] [ddots-l] Re: [Bulk] Re: Inquiry: Noise reduction Tools


The soundcard is an external firewire interface.  There is an onboard
firewire port on the computer that the interface uses.  It sounds like an
external firewire card would be useful.  Am I correct in thinking this?
Thanks again for the info!

Most Sincerely,

Bobbi

--------------------------------------------------
From: "Farfar In, Out of the Rain" <dgcarlson@xxxxxxxxxxxxx>
Sent: Monday, March 19, 2012 3:44 PM
To: <ddots-l@xxxxxxxxxxxxx>
Subject: [ddots-l] Re: [Bulk] Re: Inquiry: Noise reduction Tools

> That sounds like CPU noise. Is your sound card on-board, or external? Any
> cables routing inside your computer case can pick up variants of
> medium-frequency noise from the CPU clock, disc drive motors, fans, and
> the
> various buses.
>
>
> Dave Carlson
> Tastefully composed and transmitted from somewhere in the Western United
> States, using a Dell Latitude E6520 and Windows 7
>
>
> ----- Original Message ----- 
> From: "Bobbi Blood" <phantomess666@xxxxxxxxxxx>
> To: <ddots-l@xxxxxxxxxxxxx>
> Sent: Monday, March 19, 2012 14:23
> Subject: [Bulk] [ddots-l] Re: Inquiry: Noise reduction Tools
>
>
> Thanks Chris and all for the suggestions.  The tone is the same one you
> hear
> when something is censored on American TV.  B5, around 1000hz.  Any other
> thoughts on this?
>
> Most Sincerely,
>
> Bobbi
>
> --------------------------------------------------
> From: "Chris Smart" <csmart8@xxxxxxxxx>
> Sent: Monday, March 19, 2012 2:27 PM
> To: <ddots-l@xxxxxxxxxxxxx>
> Subject: [ddots-l] Re: Inquiry: Noise reduction Tools
>
>> gating or a filtering plug-in is a bad idea, a bandaid solution.
>> What frequency is the fundamental of the noise? You're probably getting
>> harmonics of it too, but knowing the fundamental frequency might help us
>> figure out a possible cause.
>>
>> The first things to check are any ground loops or shielding issues
>> between
>> your various pieces of gear. The solution might be as simple as locating
>> a
>> couple pieces of equipment further apart, using better cables, getting a
>> power conditioner or other power product that filters out interfearance,
>> etc.
>>
>> --------------------------------------------------
>> CTS MASTERING: PROFESSIONAL MIXING AND MASTERING!
>> http://www.ctsmastering.com
>>
>> Dropbox: Have your stuff when you need it. 2GB is free
>> http://db.tt/bQ2GuIt
>>
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