[sdiy] Crude sampler chip

[Derek Holzer]

I've got a stack of these to play with. It's a bit tricky to reclock it 
(unless you're used to building MHz speed clocks, of course), but Tom 
Bugs has been working on some projects with this. I expect he'll pipe up 
soon about that...

Easier to work with is the 1016, which has 20 seconds of memory and a 
simple resistor for the clock speed. The Mobius Trip looper project on 
General Guitar Gadgets is the classic looper application of this:

http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=147&Itemid=26

But a more brave soul could look into the digital addressing functions 
of the chip for cheap, noisy granular synthesis. Also, a vactoral 
(optocoupled LED+photoresistor or phototransistor) input could easily 
allow voltage controlled modulation (see again the Tom Bugs website) for 
chorusing and other common effects.

And check the spec sheet. ISD Winbond manufactured a wide range of these 
kind of chips, destined for the answering machine market, and each has 
some very hackable properties.

My own ISD chip sound sculpture project involved small micro-FM 
transmitters with a looping sound sample, disguised as interplanetary 
insects....

http://blog.myspace.com/index.cfm?fuseaction=blog.view&friendID=8000634&blogID=284001293

You really notice the low sampling rate, though, when you try to put a 
high frequency sound into it and it comes back, well....silent...

Good luck!
d.

Dump Static wrote:
> I was looking at this Paia kit:
> http://www.paia.com/KRUKits/K64/K64.pdf
> 
> and the documentation on the chip:
> http://kitsrus.com/pdf/isd_2560.pdf
> 
> and wondered if anyone had worked with this chip as a (lo fi) sampler.
> 
> The chip has control for Play/Record, Reset, etc, looping ability, and
> also has a External Clock input.
> 
> Has anyone ever played around with this chip for modular synth-type
> applications?
> 
> Could a standard VCO be used to clock this thing?
> 
> Could standard pulses from analogue clocks/drum machines be used to
> Play/Reset this?
> 
> Or is there a better place for me to start?
> 
> thanks  :)
> Drew
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-- 
derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
---Oblique Strategy # 24:
"Bridges
-build
-burn"