software EGs / PICs
dave.halliday at greymatter.com
Wed Jun 18 08:02:00 CEST 1997
>>For data sheets - search for PIC, "Basic Stamp", Parallax ( Parallax is
>>a manufacturer of the Basic Stamp and of development kits ) and "Scott
>>Edwards" ( another manufacturer )
> Also, check out http://www.parallaxinc.com ...
That is Parallax's web URL - thanks!
> I've used Basic Stamps for other non-audio related projects (robotics,
> automated control, etc), but am *very* interested in how they can be
> applied in the synthesis field.
> I think I missed the earlier part of this thread where PIC's were
> mentioned, and will go through my archives to see if I have it, but if
> anyone else has any idea's or applications of PIC's for audio, please
> let me know. I have quite a few spare from past projects, and would
> love to figure out some cool uses for them...
I too have used them for both hobby and commercial purposes.
What got me thinking was a discussion about envelope generation. This
is an application where a PIC would be perfect. Choose one with the
8-bit A/D / D/A onboard, use a chunk of memory ( external EEROM ) for
shape tables and you can have as complex and as fast a risetime as you
wish. The Analog / DIgital section can output several channels of
envelope - laging, modulated, different waveshapes, etc... You can
also use the Analog inputs for reading the panel pots - there is also
a serial input so communication ( updates ) is possible.
The thread was initially talking about synth's ( Oberheim Xpandor,
etc. ) where one CPU was controlling all aspects of operation. I
sugested that since these chips are cheap enough and require
essentially zero support circuitry, they would be an excellent
candidate for an embedded system of this type.
--- Via Silver Xpress V4.4 [Reg]
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