A browser-based MIDI editor for the Behringer UB-1 Micro synthesizer. Connect your UB-1 via USB and edit all parameters in real time without navigating the hardware menus.
1. Connect your UB-1 to your computer via USB-C.
2. Open this page in a supported browser (see below).
3. Allow MIDI access when prompted by the browser.
4. Select your UB-1 from the device dropdown.
5. Use the sliders, knobs and menu pages to edit your patch.
6. To save on the device, press the SEL button on the UB-1.
CUTOFF / RESO knobs - drag up/down to adjust filter cutoff and resonance.
Menu buttons (OSC, LFO, FILTER, AMP, ARP, SETTINGS) - switch between parameter pages.
Idea Bank - select one of our inspirational presets as a starting point.
SAVE - save your current settings as a named preset (stored in your browser).
DEL - delete a user-saved preset.
RESET - reset all parameters to default values.
Click the on-screen keys or use your computer keyboard:
Bottom row: A S D F G H J K L - white keys (C3 to D4)
Top row: W E T Y U O P - black keys (sharps/flats)
Web MIDI is required. Supported browsers:
Chrome - fully supported (recommended).
Edge - fully supported.
Opera - fully supported.
Firefox - not supported (no Web MIDI API).
Safari - not supported (no Web MIDI API).
Values shown as 0–99 match the device display. The editor sends the full MIDI CC range (0–127) under the hood.
This editor cannot read the current state of the synth - the UB-1 does not send parameter values back over MIDI.
Behringer is a trademark of Music Tribe Global Brands Ltd. This project is not affiliated with, endorsed by, or connected to Behringer or Music Tribe in any way.
This software is provided as-is, without warranty of any kind.
The Behringer UB-1 Micro exposes every synthesis parameter via standard MIDI Control Change (CC) messages. This makes it fully controllable from any DAW, hardware sequencer, or browser-based MIDI tool without proprietary software. The tables below list every CC number, its function, and the value range accepted by the UB-1 Micro over USB or TRS MIDI.
The device displays most parameter values as 0 to 99, but these map internally to the full MIDI CC range of 0 to 127. All values below reflect the actual MIDI CC values sent and received over the wire.
| CC | Parameter | Range |
|---|---|---|
| 3 | VCF ENV Amount | 0-127 |
| 7 | VCA Level | 0-127 |
| 8 | VCA Mixer | 0-127 |
| 9 | DCO Sync | 0-63 off, 64-127 on |
| 14 | MIDI Tx Channel | 0 off, 1-16 |
| 15 | MIDI Rx Channel | 1-16 |
| 20 | VCF OSC2 Amount | 0-127 |
| 24 | OSC1 Wave | 0-31 off, 32-63 saw, 64-95 tri, 96-127 square |
| 25 | OSC2 Wave | 0-31 off, 32-63 saw, 64-95 tri, 96-127 square |
| 26 | Aux Function Type | 0-63 noise, 64-127 sub |
| 27 | Aux/Sub DCO Level | 0-127 |
| 28 | LFO 2 Amount | 0-127 |
| 29 | Aux Noise Level | 0-127 |
| 30 | LFO 1 Wave | 0-42 saw, 43-85 tri, 86-127 square |
| 31 | LFO 2 Wave | 0-42 saw, 43-85 tri, 86-127 square |
| 70 | LFO1 Amount | 0-127 |
| 71 | VCF Resonance | 0-127 |
| 72 | LFO1 Rate | 0-127 |
| 73 | LFO2 Rate | 0-127 |
| 74 | VCF Cutoff | 0-127 |
| 81 | VCA EG Attack | 0-127 |
| 82 | VCA EG Decay | 0-127 |
| 83 | VCA EG Sustain | 0-127 |
| 84 | VCA EG Release | 0-127 |
| 85 | VCF EG Attack | 0-127 |
| 86 | VCF EG Decay | 0-127 |
| 87 | VCF EG Sustain | 0-127 |
| 88 | VCF EG Release | 0-127 |
| 102 | OSC1 Pulsewidth | 0-127 |
| 103 | OSC2 Pulsewidth | 0-127 |
| 104 | Arpeggiator Enable | 0-63 off, 64-127 on |
| 105 | Arpeggiator Hold | 0-63 off, 64-127 on |
| 106 | Arpeggiator Scale | 0-21 1/4, 22-42 1/4T, 43-63 1/8, 64-85 1/8T, 86-106 1/16, 107-127 1/16T |
| 107 | Arpeggiator Type | 0-42 up, 43-85 down, 86-127 up & down |
| 108 | Arpeggiator Clock Source | 0-42 internal, 43-85 USB, 86-127 MIDI |
| CC | Parameter | Range |
|---|---|---|
| 109 | Arpeggiator Internal Clock BPM | 20-240 |
| 110 | Arpeggiator Gate Length | 1-127 |
| 111 | Osc 1 Fine Tune | 0-127 |
| 112 | Osc 2 Fine Tune | 0-127 |
| 113 | Arpeggiator Swing | 50-75 |
| 114 | Octave | 0-25 -2, 26-51 -1, 52-76 0, 77-102 +1, 103-127 +2 |
| 115 | OSC1 Coarse Tune | 0-127 |
| 116 | OSC2 Coarse Tune | 0-127 |
| 117 | Duo Mode | 0-63 off, 64-127 on |
All parameters respond to standard MIDI CC messages over both USB-C and the 3.5mm TRS MIDI input. The UB-1 Micro is class-compliant, so no drivers are needed. For browser-based control, any Web MIDI compatible browser (Chrome, Edge, Opera) can send these CC values directly to the synth in real time.
If you'd told me a few years ago that I'd be holding an authentic analog synthesizer - with Oberheim Matrix DNA - in the palm of my hand for under sixty dollars, I'd have laughed. But here we are. The Behringer UB-1 Micro (originally teased back in 2022 as the "UB-1 Spirit") is now a real, shipping product, and it's genuinely impressive for what it is and what it costs.
The UB-1 Micro is Behringer's most compact entry in their Oberheim-inspired UB family - the smaller, more affordable sibling of the UB-Xa and UB-Xa Mini. Where those are full desktop or rack-mounted instruments, the UB-1 Micro is something you can slip into a jacket pocket. Yet it shares the same core analog circuitry: the legendary 3396 and 3397 analog chips found in the Oberheim Matrix 6 and Matrix 1000. That heritage matters, and you can hear it.
The heart of the UB-1 Micro is its dual DCO (Digitally Controlled Oscillator) engine, with each oscillator capable of producing sawtooth, triangle, and square waveforms, plus pulse-width modulation (PWM). There's also a sub-oscillator and a noise generator rounding out the palette, which gives you far more sonic range than you'd typically expect at this price point - from deep, thundering basses to airy textures and aggressive noise sweeps.
The filter is a 24 dB/octave analog 4-pole low-pass, directly derived from the Oberheim Matrix design. It's smooth, it's musical, and it self-oscillates beautifully when pushed. Running fat leads through it or sculpting basses with the cutoff feels genuinely satisfying in a way that software emulations rarely replicate.
For modulation, you get two LFOs - LFO1 (triangle or sawtooth) routed to pitch, and LFO2 (triangle or square) routed to filter cutoff - along with dedicated ADSR envelopes for both the VCA and VCF. The routing is fixed rather than fully open, which is a concession to the format, but it's thoughtfully chosen and covers the most musically useful modulation paths. The synth is monophonic/duophonic, making it a superb tool for leads, basses, and FX that need to cut through a mix.
The UB-1 Micro features 16 touch-sensitive mini keys, six function buttons, and a compact OLED display for navigating parameters. The menu-diving experience is real - this is not a one-knob-per-function synth - but the OLED display makes it manageable, and once you've learned the layout it becomes second nature.
Build quality feels solid for the price. It's clearly a budget instrument, but it doesn't feel fragile. The touch-sensitive keyboard is surprisingly responsive and playable, and the tactile buttons give decent feedback.
This is where the UB-1 Micro really shines for anyone looking to integrate it into a broader setup - including browser-based control applications.
The comprehensive MIDI CC implementation is what makes the UB-1 Micro such a compelling candidate for browser-based MIDI control. Using the Web MIDI API, every parameter - oscillator tuning, filter cutoff, resonance, envelope times, LFO rates - can be mapped and controlled directly from a web interface. No proprietary software required, no latency-heavy Bluetooth, just clean USB MIDI communication.
Out of the box, the UB-1 Micro ships with 32 factory presets curated by Ultimate Patches, covering a solid range of basses, leads, pads, and effects. These are a great starting point and genuinely useful for jumping straight into a session.
Preset management and deeper editing are handled via Behringer's SynthTribe companion app, which gives you a more visual interface for patch creation and bulk preset saving and loading. For users who prefer a browser-based workflow, SynthTribe is easily bypassed entirely - direct MIDI CC control gives you full access to every parameter in real time.
In practice, the UB-1 Micro is a joy to use as an expressive analog voice. The arpeggiator offers three patterns with a hold function, which is handy for generating rhythmic ideas quickly. Sequences and arpeggiated patterns can be locked and left running while you dial in tones, making solo performance or studio sketching easy.
The duophonic mode - where the synth allocates its two oscillators to two separate pitches - gives a surprisingly wide sonic impression for a mono synth, especially when the oscillators are slightly detuned against each other. Fat, full, and unmistakably analog.
One genuine limitation worth noting: there is no onboard keyboard velocity tracking to the filter, and portamento is absent. The LFO routing is fixed rather than freely assignable. For a fifty-dollar synth these are understandable design decisions, but if you're a sound design enthusiast used to fully modular routing, you'll feel the constraints. Future firmware updates may expand on these features.
One of the most exciting aspects of the UB-1 Micro for technically minded musicians is its complete openness to MIDI CC control. Because all parameters respond to standard MIDI Control Change messages, any application that can send MIDI - including browser-based tools using the Web MIDI API - can take full control of the synth in real time.
This means:
For anyone building a browser-based MIDI controller specifically for the UB-1 Micro, the synth's class-compliant USB MIDI implementation means zero configuration: connect via USB-C, open your web app, select the UB-1 Micro as your MIDI output, and start sending CC messages. It just works.
| Feature | Detail |
|---|---|
| Price | ~$55 USD / £50 GBP / €59 EUR |
| Sound Engine | Analog, 2x DCO + sub oscillator + noise |
| Filter | 24 dB/oct analog 4-pole low-pass (Oberheim 3397 chip) |
| Polyphony | Monophonic / Duophonic |
| LFOs | 2 (fixed routing: pitch and filter) |
| Envelopes | 2x ADSR (VCA and VCF) |
| Arpeggiator | 3 patterns with hold |
| Presets | 32 factory + user editable |
| Keyboard | 16 touch-sensitive mini keys |
| Display | OLED |
| Connectivity | USB-C (MIDI + power), 3.5mm TRS MIDI In, 3.5mm stereo out |
| MIDI CC | Full parameter control via MIDI CC |
| Companion App | Behringer SynthTribe |
| Power | USB-C (smartphone, laptop, power bank) |
The Behringer UB-1 Micro is a remarkable piece of kit for its price. The analog pedigree is real - those Oberheim Matrix chips deliver a warmth and character that no plugin has quite captured - and the full MIDI CC implementation opens the door to powerful external control workflows, including browser-based applications.
Is it a perfect synthesizer? No. The fixed modulation routing, absence of portamento, and inevitable menu-diving are real limitations. But for roughly the price of a dinner out, you get genuine analog synthesis with Oberheim lineage, a solid feature set, and a connectivity spec that rivals instruments costing ten times as much.
For producers, performers, and developers alike, the UB-1 Micro earns its place as one of the most interesting and accessible analog instruments available today.
Bottom line: If you want Oberheim tone in your pocket - and in your browser - the UB-1 Micro delivers.
Review based on product specifications, community feedback, and hands-on MIDI integration testing. Pricing may vary by region and retailer.