Re: [ARSCLIST] Reducing soundcard/circuit noise

[Rod Stephens <savecal@xxxxxxxxxxxxx>]

Hello All,

I thought you all might like to know the resolution of the Terratec 
DMX6Fire soundcard problem (see below).

As a result of the research we all did, what is the general opinion of 
the newer approach to handling audio with an outboard USB I/O box?  
Also, one of the additional pluses is that the USBs (Terratec and 
Tascam, and others, I would guess) work with both Macs and PCs.

Rod Stephens

> Dear Rod
>  
> I decided to sell the Terratec and bought a Tascam US-122 audio 
> interface.  Everything seems to be working fine now.
>  
> Kind regards, and once again, thank you very much for your input!
>  
> Diederick
> ----- Original Message -----
> From: Rod Stephens <mailto:savecal@xxxxxxxxxxxxx>
> To: D Basson <mailto:wdbasson@xxxxxxxxxxxx>
> Sent: Sunday, September 18, 2005 5:54 PM
> Subject: Re: [ARSCLIST] Reducing soundcard/circuit noise
>
> Hello Diederick,
>
> I think it makes sense to see if a replacement card will make a 
> difference.  If not, it would seem you have some sort of hidden 
> incapacity, but I would bet that you'll see some sort of difference 
> with a new card.  It's an interesting case.
>
> Rod
>
> D Basson wrote:
> Dear Rod
>  
> Thanks for the info.  Yes, I did forward the frequencies to Mike.  
> Herewith his reaction:
>  
> Assuming that those frequencies are near the centers of three peaks, no
> cause seems immediately likely. If your problems exist only on one
> input, the source may be in that input - for example, artifacts of the
> phono preamp. The frequencies are too low to come from radiation but
> they do not correlate with harmonics from the power supply or grounding.
> Neither do they fit with sync signals from the monitor.
>
> I would now check whether the noise level varies with signal strength
> and with other inputs, including whether it is present with null input
> and with the input you're using but with the power to that source turned
> off. Finally, I would see whether I could borrow or buy inexpensively an
> external digitizer. Once you locate the noise source, eliminating it is
> straightforward.
>  
> Today's Sunday, so I won't find anyone at work. I will see if I could 
> maybe get a replacement for the sound card tomorrow.
>  
> Kind regards,
>  
> Diederick
<snip>

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
>
>