MATRIXSYNTH: FORM + ATEK303: Two Firmwares Jamming on the M-VAVE FM-1!

Tuesday, November 10, 2026

FORM + ATEK303: Two Firmwares Jamming on the M-VAVE FM-1!


video upload by HanzVolt

You can find the M-VAVE FM-1 on Amazon.

"Live jam session using the brand new ATEK303 and FORM firmwares on the M-VAVE FM-1 — two firmwares jamming together.

Cyborg face available at https://hansvolt.com — only a few slots left!

Get the only female cyborg face version at https://github.com"


The ATEK303 voice and its acid pattern generator, in a pocket synth. Press PLAY and a line plays; turn the knobs and it moves. No computer and no cables, if you like.

The ATEK303 voice

The same engine as the VCV Rack module: Open303 with the ATEK oscillator and diode filter, modelled on the 303 schematic. Against the original the difference stays at -51 dB: it is the same sound. With its fine tuning, as in VCV.

The acid pattern generator

SEQ makes a new line of up to 64 steps; the mutations change the rhythm, the octaves or the slides and accents. It is the ATEK303 SEQ algorithm: the same seed gives the same pattern in VCV and on the FM-1.


Stereo effects

Distortion (overdrive, RAT or fuzz), chorus or flanger, a tempo-synced ping-pong delay and a plate reverb. At the output, a limiter that makes it louder without clipping.

Step editor and presets

A piano roll in pages of 16 steps to touch up the pattern note by note, 12 factory presets and 32 slots with a save screen that asks before overwriting.

MIDI in and out

Notes, CC and clock in; the sequencer's notes and the clock go out over USB, to record the line in your DAW or play another synth with it.

Try it in the browser

The same firmware built for the web: the FM-1 on screen, with sound, nothing to install.

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