Hello Downunder Friend Basson,

I just found some specific info on your soundcard from a British
magazine web site, "Sound on Sound". To quote from the article:
Solving Computer Audio Problems
Banish Them For Good

> If you get ground-loop problems in your computer after installing a
> soundcard with a drive-bay interface, such as the Terratec DMX6Fire
> shown here, try mounting it using nylon bolts and washers.

The whole article covers most of what we've been discussing and then
some: http://www.soundonsound.com/sos/nov04/articles/computerproblems.htm

Hope this is of help,

Rod Stephens
Family Theater Productions

P.S. I use Audition, too, so if you need some tips on using your
"Frequency Analysis" function to find out what your buzz is in Hz
(cycles), let me know; if you record just the buzz, you should be able
to get a sample wave that should be easy to analyze.


D Basson wrote:

> Dear Rod, Mike, Lou, Richard, Joe, etc.
>
> Thank you very much for your advice!
>
> I've disconnected the monitor and recorded "silence", but the buzz
> (like a shaver) was still present. I've removed the I/O box from the
> PC case and everything sounded much better. One thinks of upgrading
> one's system (in need of speed) just to encounter new problems slowing
> you down again!
>
> Kind regards,
>
> Diederick Basson
>
>
> ----- Original Message ----- From: "Rod Stephens" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, September 15, 2005 12:51 PM
> Subject: Re: [ARSCLIST] Reducing soundcard/circuit noise
>
>
>> Hi Diederick,
>>
>> In checking out the Terratec, I see that there is a different version
>> of that box, the Terratec Phase 26 USB which, of course is USB, so I
>> would guess means no internal card (much better).
>>
>> Rod Stephens
>> Family Theater Productions
>>
>> D Basson wrote:
>>
>>> Dear Group members
>>>
>>> I recently bought a Dell Optiplex GX620 computer with Windows XP. I
>>> use a Terratec DMX6Fire soundcard. When I make recordings using
>>> Adobe Audition or Wavelab, I get a buzzing noise - a problem I have
>>> never had with my previous computer. Can anyone perhaps help me
>>> solve the problem?
>>>
>>> Kind regards,
>>>
>>> Diederick Basson
>>>
>>>
>