[PD] small(est) hardware solution(s)

marius schebella marius.schebella at gmail.com
Fri Jul 27 02:03:19 CEST 2007

derek, thank you for your answer, looks interesting and I will probably 
use it for another piece. but for this project 60s is not enough. there 
will be several tracks and all together at least 20 minutes, which would 
be ~20MB at 8khz.
maybe it is possible to hook together a bunch of chips, although I would 
probably not be able to reprogram them.
so what would be the next size? I somehow like the idea of running pd on 
  a very small thingie. it is not a must, of course.

Derek Holzer wrote:
> How much memory/time do you need to record? The smallest/cheapest 
> solutions don't require a computer at all. There are ISD voice recorder 
> chips capable of recording messages up to 60 seconds at 8 Khz sampling 
> rate. You can also record several different messages with a total time 
> of 60 secs, which can be addressed via the controller pins of the chip. 
> If you get the SMD version of this chip, it is only several mm across 
> (but a PITA to solder!).
> They run from $5 (cheap, on EBay sometimes even cheaper) to about $25 
> (new, retail) per chip and depending on which version you use require 
> very few external components and depending on the application may or may 
> not need a microcontroller. There are simple plans for using them like a 
> guitar loop pedal all over the internet already, as well as quite a few 
> documented schematics for different applications.
> I used a pile of them for some sound sculptures, documented on the last 
> couple posts on my blog:
> http://blog.myspace.com/macumbista
> best,
> d.
> marius schebella wrote:
>> I am helping a friend of mine with an installation where we need to 
>> record and playback speech into an old telephone. everything should 
>> ideally be built inside the phone.

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