Hi Metamax, Cheers....... the answer was actually in a maxhelp file somewhere
They gave - expr (69. + (1./.057762265) *log($f1/440.))
and yours expr 69.+12.*log10(4f1/440.)/log10(2)
both work perfectly and do exactly the same frequency to midi note number conversion.
Sadly I wish i'd concentrated on maths more when i was in education now haha
Is it possible to describe to me, in laymans terms, whats actually happening & how both equations end with the same result.
recently i've been trying to understand what goes on behind the objects that i regularly use..... mtof, ftom etc. regarding both the maths and as importantly the syntax
eg. I succesfuly created the Split obect using [if $i1>=40 & $i1