37 lines (28 loc) · 467 Bytes

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#