Hacker News Reader

OP here– good point, that's not well explained in the article! And thanks to the others who have answered already, you're pretty much spot on.

The core library, referenced here as `el`, contains a set of factory functions for describing various underlying processing nodes. So when you write `el.lowshelf()` you're just using one of the builtins (like how you might use a div, span, or button in a web app with React)

Thank you very much! So I assume these factory functions still live in the JS world and provide some processed input / nodes for the actual audio rendering happening at the end of the chain?

Seems like it's an object that contains factories for instantiating new audio processing stages and connecting it to the graph at creation-time.

That makes sense, thanks

From checking the video, it's the default export of one of the project's core libraries. I gather it's meant to be in scope for all use of the project.