Guess Note JS

Returns a closest note number from curren octave by given frequency of sound and kamertone in Hz.

Install:

npm install guess-note

Use:

var gn = require('guess-note');

//460 is input frequency
//440 is kamertone frequency (note A), differs for different cultures
var note = gn.guessNote(466, 440); 

Notes ordered from "A" to "G#":

index|note ---|--- 0|A 1|A# 2|B 3|C 4|C# 5|D 6|D# 7|E 8|F 9|F# 10|G 11|G#