MATRIXSYNTH: SQK-01 update - Gnarly DIY FM Synth

Thursday, January 02, 2020

SQK-01 update - Gnarly DIY FM Synth

Published on Jan 2, 2020 R.O.T. Studios

A WIP update of my DIY FM synth: SQK-01.
VST-Plugin version:
EMU Xboard hack:

Hacking an EMU Xboard MIDI controller for DIY

Published on Nov 12, 2019 R.O.T. Studios

"The EMU Xboard MIDI controller is GREAT to build DIY synths with, since it uses an Atmega48 as the front panel controller. The pinouts are also easy peasy and offer enough flexibility. On top of that you get a semi-weighted keyboard with velocity and aftertouch! Lotsa bang for your DIY buck :)

Arduino library
My custom front panel code
Front panel and Due pinouts
Front panel and Atmega notes
Scanning a key matrix

via Evil Turtle Productions

"The SKQ-01 is a more extreme take on FM synthesis, offering 9 different waveforms as well as PWM (Pulse-Width-Modulation) and allows you to create anything from trippy FM pads to the most noisy and loud bass lines.

Besides the FM synthesis mode the synth can also be switched to a normal synthesis mode so that the two oscillators can be layered, for a nice full sound which lends itself for things such as massive pads.

There are two oscillators/operators giving 16 note polyphony. Each of these has it's own waveform, detuning and ADSR envelope.
The second oscillator/operator has PWM which can be used both in FM as normal synthesis modes.
The synth also features an analog emulation of a low-pass VCF with plenty of resonance available, which can be controlled with a separate AR envelope as well as an LFO.

For further shaping of the sound there is a distortion, stereo chorus and reverb effect build in. For extra dynamics in your playing Portamento and Pitch Bend can be used.

Patches can be saved and loaded from within the plugin."

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