Octave synthesis on a PIC microcontroller
dave.halliday at greymatter.com
Mon Jun 23 07:15:40 CEST 1997
>>Problem there is that many of the PIC chips use slow A/D/A - they use
>>a cheaper integration method of conversion than the more expensive
>>sucessive approximation or the really $$$ flash conversion.
>>Don't know if you could get the accuracy plus enpough speed for
> .......this is taking low parts count a bit far......i wouldn't think
> you would want to use the pic for d/a conversion when there are those
> very cheap & available burr-brown serial codecs.....like the 3000
> series at about $15 each....no problem driving a multiplexer with
> those...... of course people who do this stuff commercially tell me to
> do the whole thing in DSP but where's the fun in that?
> paul perry
Besides, the original message was about using a PIC and a bnch of
sample and holds to replace all those expensive and messy exponential
convertors. That is part of what gives a multiple oscillator analog
synth such a gorgeous sound...
Use the chips for control, use analog for signal processing and
> "The only valid market survey is a signed purchase order"-Jay Last,
> Teledyne co-founder
I love it! Consider it swiped...
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