Three exciters
Bow, blow or strike the body. Blend the three exciters into a single voice and shape its attack.
SYNTH · AUv3 · IPAD
Monophonic physical modeling
Rosin
Shape one resonant body by hand, then hear and see its modes respond as you play. Rosin is a monophonic physical-modeling synthesizer for iPad. Desktop builds for macOS and Windows are coming later.
See resonance
The instrument draws what rings.
Every active mode of the body renders as a dot in the Constellation view. Frequency runs left to right, decay bottom to top, so the changing response stays visible while you play.
Use Rosin with MIDI from a keyboard or a sequencer. Sustain and a fixed basic control map keep the instrument ready for a session without turning it into a control surface.
One voice, many resonances
Shape the body. Find its voice.
Geometry you can hear
Shape the resonant body by hand with geometry, brightness, damping and position.
Three resonator models
Explore modal, string and strings models, with space processing that places the sound into a room.
Sixteen factory presets
Start with bowed drones, blown tones, struck percussion and resonant textures, including String, Strings and Space-rail sounds.
Where it runs
One instrument, three ways in.
AUv3 and standalone
Use Rosin as an AUv3 instrument inside an iPad host, or open its standalone app. The first ship is iPad only and requires iPadOS 15 or later.
Desktop builds
Desktop builds are coming for macOS and Windows. They run as VST3 and standalone, with AU on macOS.
COMING SOON
A full-quality 20-minute trial lets the whole instrument play without degradation. One Perpetual Unlock removes the trial cap permanently in the app and its AUv3. There is no subscription.
Part of Wiregrove