Tag: javascript

Nov 10, 20268 min read

How to build a Web Audio API equalizer

How I built spectrum bars and a 10-band graphic equalizer with the Web Audio API's AnalyserNode and BiquadFilterNode, then ran a real MP3 through it.

Oct 31, 20267 min read

How to use the Gamepad API in JavaScript

Learn the JavaScript Gamepad API: read an Xbox or PlayStation controller with getGamepads(), poll buttons and sticks, add rumble, and play a platformer demo.

Oct 24, 202616 min read

How to make 8-bit sound effects with the Web Audio API

How I built NES-style 8-bit sound effects with about 250 lines of Web Audio API code, then pushed it to a four-channel chiptune and a lo-fi tape deck.