— Blog

notes.

Long-form posts on the engine behind Arna, the framework we ship it in, and the choices that shape how a reverb plugin sounds. Written by the people who built it.

  • DSP · Engine · DiffGFDN

    what is a diffgfdn, and why we built arna on top of one

    A plain-English tour of the Differentiable Geometric Feedback Delay Network — the reverb topology that powers Arna. Geometric routing, differentiable parameters, and what 'trained against impulse responses' actually means.

    · 8 min read · read →

  • JUCE · Engineering

    why we ship arna with juce 8

    JUCE 8 was a real upgrade for the kind of reverb plugin Arna wants to be. Notes on what changed, what it lets us do, and what we still wrap by hand.

    · 6 min read · read →