Tag Archives: AudioNodes

Onwards with our Web Audio Journey: Oscillators, Filters and Gain Nodes


via Onwards with our Web Audio Journey: Oscillators, Filters and Gain Nodes – sounDesign.

This post is part of the series Make Noise with Web Audio API and originally appeared on Sonoport Tech Blog.


To help guide you on your web audio journey this segment will be about the Audio Context, how to create Oscillators, Filters, and Gain nodes. Previously we have complied a bunch of information that would be useful for anyone to start on web audio here, then we went through the basics of making sound and the brief history of Web Audio API here, now for this post, we are going to talk more about… nodes!

Inside of the API, everything is a node! NODE! NODE! node… What is a node? A node, or specifically an AudioNode, is the unit of processing inside WebAudio. We as developers, have to connect these AudioNodes in various patterns to generate, process and analyse audio. Such a connected set of AudioNodes is called an AudioGraph. Think of it as a tree. At the base of the tree (the trunk of the tree?) is the Audio Context.