Create HTML5 audio visualisations

How-to
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published

Blurring the line between Flash and HTML, Nick Jonas gives you a jump-start into audio-driven animation that runs natively in the browser

This tutorial is designed to help you ease your way into the powerful new Chrome Web Audio API, a high-level JavaScript API for processing and synthesising audio in web applications. We will create an app that will loop through a set of provided audio tracks, and draw an audio visualisation to the HTML5 canvas tag. The canvas animations will make use of Paper.js, a powerful graphics library that provides a clean and easy-to-use interface.

The goal here is to make beginner and advanced-level developers familiar with the basics of the API, and inspire you to explore the new possibilities of both native audio and animation in the browser. For further reading, here are some resources: Complete Web Audio Specification; Paper.js; DAT-GUI; and Chromium Project.

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