[sdiy] Sound synthesis with microcontrollers

[Neil Johnson]

JB,

> Actually, I think I've put together (at least on paper) a rather simple
> architecture : a fast uC (Scenix 75 MHz), a multiplier (FPGA or Logic
> Devices) and some SRAM.

Mmmmm... sounds like a DSP to me.  But with more soldering, and slower.

> This thing is actually a sort of customized DSP emulation, for which
> software should be much easier to write and optimize than on a DSP,
> mainly because it would remain simple...

DSPs are infact _very_ simple machines, much simpler than most processors.

> As said before the Philips XA family is attractive. But someone also
> mentioned HItachi chips... Any link for datasheets ?

Try:
	http://www.google.com/search?q=hitachi+semiconductor

Click on the first link.
Interestingly, they seem to have merged with Mitsubishi Electric.

> In other words, the same board / module would be used to implement
> various functions (and why not a VC controlled switch between those
> functions)...

Sounds very much like a Chameleon:

	http://www.soundart-hot.com/

With the advantage that you can chare your efforts with others more easily
than with proprietary hardware.

Neil

--
Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
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