midi controlled analog synths

[jay kolaric]

Time always means a lot to me.  I will be also starting another 5 subjects
in a
couple of weeks to do concurrently with my project so I will be flat out.

I wasn't thinking of writing the entire code from scratch as Paia have
the program on their website.  I was considering modifying it to include
less
functionality.  I agree that this is probably not a good idea.  I am
determining
if my project is overly ambitious and making tradeoffs with time, resources
etc
to determine how much is actually possible.

I think I would like to assemble the digital portion of the fatman as is
and then
spend more time on the analog synth design.  Hopefully the assembly manual
will enable me to get the correct parts and put it together quickly with a
minimum
of fuss.  Making my own PCB shouldn't be too much of a problem.  Does the
fatman
have separate PCBs for each portion I was guessing it was all on one.

My supervisor has also indicated I may be able to obtain more budget and I
was
keen to add some of my own money anyway.  The current budget is pretty
limited.

I now know that the pitch cv produced is 1V/Hz.  Could anybody clarify how
this
works.  eg what voltage and hertz is middle C.  Is it a linear
relationship?

Any suggestions for improvements as to how to go about this project are
welcome.
My specs are a computer controlled analog synth.  The analog synth is the
main spec
and the computer control is an addition if enough time/resources etc.  I
basically
want a number of notes and voices and to be able to receive note on and
note off
midi information.  I would like to be able to play simple midi files on it
and try some
sequenced 303 type stuff with a cutoff and resonance filter.

Jay
Canberra
Australia

Paul Perry wrote:

> At 02:29 PM 1/07/99 +1000, you wrote:
>
> >I understand pre-programmed PROM's are available from Paia but I am
> >trying to cut costs.
>
> This is the wrong place to cut costs, believe me.
> Especially if time means anything to you.
> Do you really think you can write code for this in a month?
> (I know others can and have.. but i guess you have other things to do..)
>
> paul perry Melboutrne Australia