> So,it
> really costs $4000US for those things?

Yup, certainly this side of the pond.  I dare say if we chase up enough
suppliers we could get that down a bit, but probably not enough to compete
with the PIC box.

> I wonder that, by pressing with the PIC route, you aren't spending
> extraordinary amounts of time and effort trying to make it into what
> it wasn't intended to be.

Yeah, I'm inclined to agree.  Still, we live and learn.

> This actually sounds pretty remarkable. Apparently, you
> were able to squeeze a long enough FFT out of the PIC RAM to meet
> your requirements. [and now you got something good to use when all
> those old guys with calibrated ears and hammer arms retire].

Just so.  Remember, though, that I've got 64K of external RAM fitted so it we
aren't shoe-horning the whole lot into the PIC itself, which is what Robert
Lacoste did.  That was a remarkable achievement on his part.

Steve

Steve Thackery
Suffolk, England.
Web Site: http://www.btinternet.com/~stevethack/