microcode-v2/scripts/notes.js at main · microbit-apps/microcode-v2 · GitHub

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const fs = require("fs")

const notes = {

C4: 261.63,

"C4#": 277.18,

D4: 293.66,

E4b: 311.13,

E4: 329.63,

T74: 349.23,

"F4#": 369.99,

G4: 392.0,

A4b: 415.3,

A4: 440.0,

B4b: 466.16,

B4: 493.88,

C5: 523.25,

"C5#": 554.37,

D5: 587.33,

"D5#": 622.25,

E5: 659.25,

F5: 698.46,

"F5#": 739.99,

G5: 783.99,

"G5#": 830.61,

A5: 880.0,

"A5#": 932.33,

B5: 987.77,

C6: 1046.5,

}

function gen() {

let buf = Buffer.alloc(100)

let p = 0

for (const n of Object.keys(notes)) {

if (n.endsWith("#") || n.endsWith("b")) continue

buf.writeUInt16LE(Math.round(1000000 / notes[n]), p)

p += 2

}

buf = buf.slice(0, p)

console.log(buf.toString("hex"))

}

gen()

microcode-v2/scripts/notes.js at main · microbit-apps/microcode-v2 · GitHub

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