simple-synth/index.ts

15 lines
520 B
TypeScript

window.onload = function () {
const audioContext: AudioContext = new AudioContext();
const osc: OscillatorNode = audioContext.createOscillator();
// this gets the node for the start butten and adds to it an even listener for click, when clicked the synth will play
document.getElementById("play")!.addEventListener("click", () => {
audioContext.resume();
});
osc.type = "square";
osc.frequency.setValueAtTime(220, audioContext.currentTime);
osc.connect(audioContext.destination);
osc.start();
};