Path: utzoo!utdoe!generic!pnet91!taob
From: taob@pnet91.cts.com (Brian Tao)
Newsgroups: comp.sys.apple2
Subject: Re: sonic blaster static
Message-ID: <502@generic.UUCP>
Date: 12 Feb 91 23:45:04 GMT
Sender: root@generic.UUCP
Organization: People-Net [pnet91], Etobicoke, ON
Lines: 24

From platkus@en.ecn.purdue.edu (Shawn W Platkus):

> I don't have a sonic blaster, but when I digitize with a microphone on a
> FutureSound board, there is almost no static if you turn off the monitor
> while digitizing.
>         This should help a Sonic Blaster too! 

    I've got a Sonic Blaster (plugged into slot 2) in my GS with a CD player
usually attached to it for digitizing.  I've tried turning off the monitor AND
my fluorescent desk lamp as well, but the static remains.  What is causing
this interference?  Is the ribbon cable from the card to the Molex connector
picking up noise from the motherboard?  If so, would it be possible to wrap
the ribbon cable in aluminum foil to shield it from the EM frequencies?

    How hard would it be to design some sort of sound input processor inside a
shielded box which sits OUTSIDE of the GS?  That way it won't pick up any
electrical noise.  Throw in rec level and tone controls, and you would have a
pretty decent sampling setup.  Better yet, have it take the digital output
from a CD player and transfer it directly into memory (or disk).  No hiss, no
distortion.  Doesn't sound too difficult.

Brian T. Tao  {taob@pnet91.cts.com} ||  Computer guru?  Someone who got
University of Metro Toronto         ||  their computer a couple of weeks
Scarberia, ON, MIC 3A8         *B-) ||  before you did.  (Alvin Toffler)