JSFiddle - React, Tailwind, and code Playground

JavaScript

var audioContext = new AudioContext();

var oscillator = audioContext.createOscillator();
var filter = audioContext.createBiquadFilter();

oscillator.connect(filter);
filter.connect(audioContext.destination);
filter.type = 'highpass';

oscillator.start(audioContext.currentTime + 1);
oscillator.stop(audioContext.currentTime + 2);