Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ulowell!hawk!rsilvers
From: rsilvers@hawk.ulowell.edu (Robert Silvers)
Newsgroups: comp.sys.amiga
Subject: Re: pd digitizer ...
Message-ID: <12694@swan.ulowell.edu>
Date: 7 Apr 89 23:36:13 GMT
References: <3415@nunki.usc.edu>
Sender: news@swan.ulowell.edu
Reply-To: rsilvers@hawk.ulowell.edu (Robert Silvers)
Organization: University of Lowell, CS Dept.
Lines: 28

In article <3415@nunki.usc.edu> wdao@castor.usc.edu (Walter Dao) writes:
>After much care, I finally succeeded into building the pd sound digitizer which
>used the ADC 0804 (the genie pd piece of hardware).

>well,  it is not a very good piece of hardware. too much noise is in a sample
>and I took great care into building it. 

>SO , the digitizer was a B I G disapointment. 
>Yes, it does work, but the sampled sound sounds like an old 1920 scratched 
>disk that survived the blitz on london during WW2.
>Well, I couldnt expect some miracle from a pd hardware project.
>                DW

     I also built the PD digitizer, as did someone else here at school.  It
seems that the amount of noise depends highly on how it is constructed.  My
friends first attempt had a lot of noise, but then he moved it from a
plastic case to a metal one, and it got much better.

     I built mine in a plastic case.  There is a little noise, but it is not
much of a problem.  I have heard PerfectSound commercial digitizers that had
more noise.  I would have to say, that if properly constructed, it is as
good as the < $100.00 commercial units.  Just make sure that it is well
grounded and well shielded.
						--Rob.

Robert Silvers.                               I'm the NRA. 
Box #1003 University of Lowell.                                   
Lowell Ma, 01854                              (508) 452-5000 x2233