chr15m / itwriter Goto Github PK

import itwriter from "itwriter";

// create a 10ms sinewave sample
const sine = [...(new Array(4410))].map((v, i) => Math.sin(i/10));

const it = itwriter({
  "title": "example",
  "bpm": 120,
  "samples": [{
    "name": "sine wave",
    "samplerate": 44100,
    "channels": [sine]
  }],
  "patterns": [{
    "rows": 32,
    "channels": [{
      0: {
        "note": "C-5",
        "instrument": 0,
        "vol": "v64",
      }
    }]
  }],
  "order": [0],
});

// in Node we can write to disk
import fs from "fs";
fs.writeFileSync("example.it", Buffer.from(it));

// in the browser we can download a blob
document.location.href = URL.createObjectURL(new File([it], "example.it"));