MIDI sequencer console
A first look at the instrument responding to MIDI control.
EH-01
A compact experimental sampler synth.
No menus. No LEDs. No screen.
Just control.
Multiple synth systems, SD + memory playback, glitch, loop, morph, record and repeat in a small hands-on instrument built for immediate noise, rhythm and strange little moments.
Now on Kickstarter join for early bird deals
And the winner for the coolest-looking synth of 2026 goes to Edgehog EH-01.
It has a multimode sound generator, synth engine, drum machine, sample playback, and the cyberpunkiest styling this side of Kaneda's bike. Quote: gearnews.com
Powerful Hardware
At the heart of the instrument is a Teensy 4.1, a high-speed 32-bit ARM Cortex-M7 processor running at hundreds of megahertz, paired with a dedicated stereo audio codec for true 44.1 kHz digital audio output.
We Promote Modding
Whether you want to alter the EH-01 in appearance or behaviour, we give you the options. Print your own parts, try different knobs and buttons, or write your own code and make your own audio engine.
Acid / Granular.
A dedicated mono engine with saw and shaped-square voices, a 303-inspired filter, accent and drive. Overlap notes for a 60 ms legato slide, then blend in the granular layer for pitch shifts and short grains or longer smears.
The MIDI Console now includes Acid / Granular controls, scale and octave selection, note velocity, step locks and overlapping note lengths. Tune spans ±2 octaves; grain playback runs from 0.125× to 8×.
Open MIDI ConsoleSamples. Your way.
Build eight-slot banks in Sample Builder: load or record audio, trim it, set fades and export 44.1 kHz, mono, 16-bit RAW files. Upload a bank directly over USB or write it to your SD card.
Use the hardware engine controls to select Synth, Acid / Granular, Memory, SD or Voice. MIDI audition plays the EH-01; local preview and effects stay in your browser. An uploaded SD bank stays selected until you move the folder knob.
Open Sample BuilderRecord it. Reuse it.
Tape captures the EH-01’s USB audio, including Acid / Granular performances, into a multitrack timeline. Trim clips, arrange takes and export WAV, or turn a mix or selection into an EH-01 RAW sample for an SD bank.
Open Tape RecorderOnboard recording.
The synth can also record its own mix to the SD card for up to 20 seconds. The newest take becomes button 1 in the USERREC bank, with automatic trimming and companion trim metadata.
Tape’s separate onboard controls send start and stop/save requests to the synth. Browser recording uses the selected audio input and its own transport.
About
About me.
Designed, built and tested by hand.
Hi, my name is Leo Rolph. I am a designer working from a small home studio in Fremantle, Western Australia. With a strong background in graphic and product design, I have always had a small obsession with electronics, synths and sound generation.
EH-01 is the result of multiple years of experimentation, many synth prototypes and a long string of design choices. It did not start as a commercial product. It started as an instrument I wanted for myself: small, capable, non-standard, immediate and built around several different sound systems I could use for my own sound generation.
The final EH-01 is an attempt to give other people the same kind of hands-on joy I get from playing with it.
Watch it move
Demos from the bench.
Two quick looks at EH-01 in motion: hands-on controls, sample behaviour and the rough edges that make it feel alive.
Sound fragments
More texture, rhythm and raw sample behaviour from the current build.