A free Reaper JSFX tool to test ambisonic arrays, beamforming speakers and multichannel spatial systems.

This is a Reaper JSFX plugin that cycles test signals (pink noise, sine sweeps, bursts) across a selected range of channels sequentially. Verify loudspeakers layout, routing and operation without manual routing. Works for Slovox arrays, IKO-style beamformers, HOA domes, or any multichannel setup.
Sound artists rigging Watermelons for gigs. Event tech prepping ambisonic arrays. Residency hosts and artists checking venue installs. Anyone with multichannel setup who wants reliable spatial sound without guesswork.


During GoSpatial 2025 residency, Slovox and Arconic realized we've independently sketched the same basic test tool. No standard solution existed for spatial multichannel verification. We cross-bred the drafts, refined the JSFX, and made it available.
Free download opens a conversation. Grab the Test Suite, tell us about your setup/practice, and let's talk spatial sound. It's how we work: share — connect — collaborate.
Slovox designs and builds spatial sound instruments, systems, and installations — grounded in the art and science of listening.
We are the R&D lab of The Last Ear, a platform dedicated to restoring attentive listening in an age of distraction.
