Memory Man or similar

[Stopp,Gene]

I did something like this... I used Crystal 4331/5331 stereo 16-bit
converters plus a big honkin' static RAM chip plus some counter logic
(again the details are somewhere in the DIY archives I hope...). It
works pretty good. The Crystal chips can be clocked far below their
specified minimum sampling rate and due to their internal 128X
oversampling will create aliasing effects without any superimposed clock
noise (I'm not quite sure of how this works, but it sure makes weird
noises!).

It all cost me nothing since the parts were in little bins in the lab of
my former employer. No they did not go out of business because the
engineers sat around all day and built synthesizer circuits. :) We knew
the plant was closing and our projects were done, so we had nothing to
do for a while and besides all those parts were headed for the dumpsters
anyway.

 - Gene

 ----------
From: Steven Curtin
To: synth-diy at mailhost.bpa.nl
Subject: RE: Memory Man or similar
Date: Wednesday, February 25, 1998 9:49AM

>
>I haven't actually tried them myself, so this is pure speculation.
Anyone...?
>

I was considering putting something together with them, but $35 for a 4k
part seems a little pricey.   RAM is so much cheaper that the hassle of
putting together address decoders etc is probably worth it.  Maybe
combining a FIFO chip and a couple of serial-to-parallel converters
would
do it, and interface that with a Crystal 4215 A/D/A.

Steve C

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