Audulus is Modular audio processing app for Mac and iPad, built around the principle that you can modulate anything any time.

You can build synths, make new sounds and process audio. Audulus is made easy by the bundled 100+ Eurorack style modules and user content available through their forum.

User Robert Syrett had this to say about his creation:

"So I pieced together an audulus version of the 0-coast. Everything sounds "kinda" like my actual 0-coast, but the aliased waveforms really give it a different character, especially in the upper registers (which I have denoted as the red zone on the pitch knob). Also, the 0-coast has some unspecified magic on the linear fm input which I am pretty sure has a vactrol in it and has a rather unique effect on the pitch. There are likely a dozen or so such small differences, but I set up some parallel patches and they sounded pretty close.

So without further ado, I present the RHS 0-Toast!"

You can download Robert's creation here.

Audulus is available from the app store for $19.99 for iPad and $48.99 for Mac.

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• Modular Synthesis App Updated 15-Dec-22