semitones: Convert Hz to semitones.
In vdweijer/supply: All Kinds of Everything

Description Usage Arguments Value Author(s) Examples

This function calculates the distance (in semitones) between one or more frequencies measured in Hz and a reference frequency. Unless specified otherwise, the reference frequency is the minimum of the frequencies.

1	semitones(x,ref=min(x))

x

distance between two frequencies measured as number of semitones.

Joost van de Weijer

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.
hz=c(1000,2000,1000,4000)
semitones(hz)
semitones(hz,ref=500)