Low frequency audio level detector using PIC ADC?

[HankMcSpank]

Hank, assuming you have time to spare, why not just sample on each iteration of main? I assume it is running much faster then 20K, And if you can stand the short time it takes to aquire the sample, you will have the best sample rate without going to interupts.

Hiya Bert ...thanks for the input.

The reason for wanting to use interrupts, is that I can sub-contract out the ADC sampling (precisely) & let it maintain itself without having to integrate the sampling into my main loop, where there's other stuff happening (and a whole heap of pauses within!).