JS metronome

generateBeep.js

const a = new AudioContext()
const getRandInt = () => Math.round(Math.random()*255)

k = (w,x,y) => {
 console.log("Gain:"+w, "Hz:"+x, "ms:"+y)
  v = a.createOscillator()
  u = a.createGain()
  v.connect(u)
  v.frequency.value = x
  v.type = "square"
  u.connect(a.destination)
  u.gain.value = w * 0.01
  v.start(a.currentTime)
  v.stop(a.currentTime + y *0.001)
}


setInterval(() => k(getRandInt(),getRandInt(),getRandInt()), 3000)

metronome.js

const a = new AudioContext()
const beep = (w,x,y) => {
  v = a.createOscillator()
  u = a.createGain()
  v.connect(u)
  v.frequency.value = x
  v.type = "square"
  u.connect(a.destination)
  u.gain.value = w * 0.01
  v.start(a.currentTime)
  v.stop(a.currentTime + y *0.001)
}

let last;
let current = new Date();
const metronome = (interval = 60) => {
    setTimeout(() => {
        beep(150,190,150)
        metronome();

        last = current;
        current = new Date();
        console.log(`seconds since last: ${(current.getTime() - last.getTime())/1000}`);
    }, interval*1000);
};
metronome()