beep

freq: Hz
duration: sec
vol: %

<script type="module"> import { beep } from "https://code4fukui.github.io/beep/beep.js"; btnplay.onclick = () => { const freq = infreq.value; const vol = invol.value / 100; const duration = induration.value; beep(freq, duration, vol); }; btnstop.onclick = () => { beep(0); }; btnmulti.onclick = async () => { await beep(440, 0.1); await beep(880, 0.1); }; </script>
src on GitHub