AVR-Chat

Russell,

> But that's still not answering the Q;)

hehe, fair point.

> If you're doing unneccessary averaging or something, you could do it once
> every 10th time around the superloop or whatever. I do a ton of realtime
> dsp control stuff with floating point on an at90s8535.

its for a synthesiser, and as such I need to do a fair bit of exponential
maths to get frequencies, generate envelopes and so on, this is where I
think the slow down is.
I've done what I can to reduce this by updating somethings less often than
others, but I can't do much less without the effects being obvious to the
ear.

Paul