> I'm interested in playing around with digital sound processing. Just
making
> simple PIC based projects like a basic amplifier. Now, I figure I need an
> analogue to digital converter to feed a digital signal to the PIC to
> manipulate (in the case of amplification just add double it, if I don't
care
> about clipping). Then a digital to analogue converter to feed the signal
> back to a speaker. However, I took a look in the RS catalogues for D2A and
> A2D converters and there are tons of them, all very highly priced. The
> prices cannot really be that expensive can they?
>
> I would appreciate it if someone could give me a few pointers on what
> converters to use, and how to use them etc.

Use a PIC with a built in A/D and then use PWM to produce the desired analog
output level.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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