A collection of patches used with Oslo Mobile Orchestra (OMO) at the Department of Musicology, University of Oslo.
OMO used to work with a collection of patches developed in PureData and deployed via MobMuPlat. This collection uses browser-based apps that rely on the Web Audio API. They should work on both iOS and Android phones, although there may be variations in sensors available and browser capabilities.
Play now: fourms.github.io/omo/
The apps should (in theory) work in all modern browsers, but we have found they generally work best with Safari on iPhone/iPad and Chrome on Android. Open the site in the browser — not inside Instagram, email, or other in-app browsers (use “Open in browser” if needed).
- Open the hub and pick an instrument — each card lists synthesis and sensors (58 apps in six sections).
- Turn Audio on (top right) if sound does not start on first touch.
- Tap Learn for how to play; QR shares a link to the same app for the group.
- Allow microphone, motion, or camera when prompted (browser and OS settings).
- Turn volume to at least 70%; disable silent mode on iPhone.
- Add to Home Screen for a more full-screen, offline-friendly install.
Many apps use a similar layout:
| Pattern | Examples | How to play |
|---|---|---|
| Full pad / X–Y | Kaoss Pad, FM Touch, Pinch Bass | Drag on the large pad |
| Centre record button | Sampler, Scrub Tape, Wind Bottle, Vocoder Choir | Hold the round button (mic apps record; release to loop or stop) |
| Hold pad | Shepard Glide, many drones | Keep finger down; tilt shapes sound |
| Keyboard / sequencer | Piano, Markov Melody, drum sequencers | Tap keys or steps |
Live readouts (filter Hz, position, training stats) stay visible at the top of the play area where relevant.
Compact list — full tables with folder names: docs/CATALOG.md.
| Rhythm (11) | CliX · Conductor · Drumkit · Drum Sequencer · Circular Drum · Firefly · Delay Throw · Euclidean Rings · L-System Groove · Clap Architect · Shadow Sequencer |
| Drones (11) | Green Button · Just Equal · Sound Saber · Motion Trump · Compass Wah · Harmonizer · Shepard Glide · Shake Filter · Flat Edge · Heading Choir · Swarm Bloom |
| Melody (9) | Piano · Mic Theremin · Flute Blow · Tilt Harp · Bow Phone · Markov Melody · Kaoss Pad · Bowed Waveguide · Crystalis |
| Synthesis (12) | FM Touch · FM Matrix · KS String · Additive Bells · Filter Ladder · Ring Mod Gong · Pinch Bass · Edge Strum · Am Radio · Phase Distortion · Supersaw Stack · Pluck Bowl |
| Texture (11) | Sampler · Granular Tilt · Spectral Freeze · Tap Bloom · Wavetable Scan · Video Sonifier · Chaos Attractor · Room Reverb Send · Wind Bottle · Scrub Tape · Vocoder Choir |
| AI (4) | Evo Drumkit · Hum Clap · Train Shake · Gesture Regression |
| Resource | Contents |
|---|---|
| App catalog | All hub apps by section (synthesis · sensors · folder slug) |
| Workshop guide | 45-minute facilitator script |
| Ideas | Backlog and shipped history |
| Device support | Sensor API checklist before workshops |
| Wiki | Extended workshop material (docs/wiki/) |