[sdiy] JOMOX

Gergo Palatinszky Gergo_Palatinszky at epam.com
Thu Oct 21 14:17:33 CEST 2010


Jörgen did some steps towards this with his AMORE standard ...
http://hem.bredband.net/bersyn/amore.htm
I've discussed with him to extend/open the AMORE (let's say to L'AMORE :O))) Large-amore which allow more pins) as I see it's difficult to use it for most of the new modules which spreaded in the list... however he reject this... resoning very same what you mantioned below - that it's difficult to define the limit, but it should be deifined...
	
However is see some chance to specify some bits ot parts which can be very useful later on might become as standard ... like a digital sub-module which can be placed onto all of the voice/signal generating/maipulation modules ... which can say for "motherboard":"Hejj I'm JH Living VCO, after the standard pins(+,-,AGND,DGND) I have pin x for singal inputs/outputs, pin x is for control which stands for ... which needs which kind of CVrange/encoder control signal ... 
And as you mentioned some HW spec for the cards are needed like 64pin connector max dimension, (digital interface should be common/standard)

Br,
	Pala

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Thomas Strathmann
Sent: 21 October 2010 13:42
To: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] JOMOX

On 10/21/10 10:50 , Gergo Palatinszky wrote:
> All the time when I see this kind of projects/synths I'm really wondering that we cannot develop an open HW+SW platform basically a synth motherboard where everybody can develop an own module ... digitally controlled switching/routing matrix for audio/control voltages ...several controller(encoder) which can be assigned to a module(for a time being to set and save parameters there) a bus system where 16-24-32-... independent module can be plugged in - can be changed easily (different modular config can be set very fastly)
> Each module have a digital part for controllers assignment and for storing control parameters ...
 >
> At least it would be nice to start a specification round to see that this kind of community could be able to do it or not.... might comercial modular manufacturer can join to it ...

The main problem with specifications for very abstract and general 
things is that people can and will go wild adding feature after feature 
and not only does realizability suffer, but you also won't arrive at a 
well-rounded design which could be interesting to manufacturers because 
it is interesting to consumers.

Instead of just building a complete platform, I would rather collect 
different circuits and idioms of building certain things like modulation 
matrices, interfaces between digital control and analog sound 
generation, etc. This should include mechanical details so a person with 
reasonable skills and some free time on his hands could mix and match 
the different parts to come up with a basic design suitable for the 
synth of processor he wants to build. Kind of like the libraries for 
VLSI design. This should be an attainable goal as it "only" requires 
that people take the time to identify re-usable parts of their designs, 
extract them, write a little in the way of documentation (a name, a few 
words on what it does and maybe how if it's not easily deduced from the 
schematics, and some hints on how to use it, again only if there are 
some "special things" to consider), and publish them. But I guess this 
is not the case for most (if not all) people here who could contribute 
any meaningful bits, so this endeavour will probably never take off.

	Thomas
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