I'm looking for suggestions as to a processor to use to make myself a general-purpose, 1 channel, realtime audio (think something like a guitar stompbox) processing unit.
I'm pretty familiar with AVR-class 8-bit mcus, and while it might be possible to put together what I need with one and some outboard circuitry, it just doesn't seem like the right tool for the job.
What I'm looking for is something that can, without straining itself, do
16-bit, 80kHz A-D conversion and has enough onboard RAM to keep a second or 2 of it buffered _and_ (yeah, yeah, I know...) have enough processor oomph to actually do a little something with the data while it's being read and written.In-circuit programming capability is a big deal.
It'd be _way_ cool if all of this were onboard in a single unit, but if you have a favorite mcu/a-d converter pair, well, I'm interested in that, too.
Power consumption is not really that important for this application - nor is unit cost - at least not in the sense that it usually means for 8-bit controllers. US$100 is probably too much, though.
Got any pointers? I just have the feeling that there are dsp-oriented processors that are pretty close to what I'm looking for, but I just don't know what's available and is, well, not a royal pain in the butt to work with - if you know what I mean.
Thanks,
-jim berry