Richard Prosser wrote: > What was getting me confused was what bin number corresponds to what > frequency Can't you find that out pretty easily by running a few appropriately chosen sine signals through your algorithm? The online DSP book seems pretty good -- did you check that out? http://www.dspguide.com/ch8/3.htm Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist