Wow...what can I say?!!
DT you truly rock...and without a doubt you're my most favouritiest E-personage on the whole of this global network!
I'll give this runout at the weekend...once again, thanks....just brilliant!!
cnc machine guy - great input too ...many thanks.. re the arriving frequencies (or more importantly, what the PIC sees for incoming signal frequency - comparator 'count'), well, on a std tuned guitar, the lowest note is 82.4Hz...which @20Mhz clock gives a comparator interrupt 'count' of about 60700 per 82.4Hz period' ...the highest note on a guitar is about 1.4Khz & gives a comparator count of about 3500 1.4khz 'period'. Each musical note has about 5% difference...but the problem with guitar 'pitch detection' is you can bend a note, which will obviously fall somewhere in between the 5% between notes.
I'd like to be able to eventually get the PIC discern not just which note is being played but also when it is s being bent - but for that I need good solid incoming samples to process...and these spurious samples were really screwing me up - hence I relish having a dabble with what DT has just posted!
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