Ryan Pogge wrote:
> 
> found this on a newsgroup
> is it possible?
> 
> --snip--
> I wish to build a device which could intercept an analogue signal and
> convert it.
> 
> A/D Converter > PIC circuit > D/A Converter
> 
> The idea I have is to develop a "black box" which could effectively scramble
> a telephone conversation making it totally private.  I would use the PIC
> processor to perform the encryption.

This can indeed be done, but watch out for bandwidth 
increase in the scrambled audio, because your telephone 
company still chops the signal at 3kHz...

A Scenix SX will give you extra horsepower for the 
encryption and the decryption.

-- 
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