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openDSP-4x4

Name: openDSP-4x4
Author: Ian Williams

Ian Williams

Open control for the t.racks DSP 4x4 Mini Pro over USB-OTG.

System & tools
FOSS
Free
No ads
No tracking

Android only

Get openDSP-4x4

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What are these stores? F-Droid, GitHub, Zapstore

openDSP-4x4 is an open-source control app for the t.racks DSP 4x4 Mini Pro, a 4-in / 4-out XLR digital signal processor that otherwise ships with Windows-only editor software. It lets you set the DSP up from an Android phone or tablet — at the desk or on stage — connected over USB-OTG.

Developer: Ian Williams
Source code: github.com/GlassOnTin/opendsp-4x4
Added to AppCosmos: 10 October 2026
License: AGPL-3.0-or-later