Arturia MicroFreak
The MicroFreak is a synthesizer manufactured by French music technology company Arturia and released in 2019.[1] Described as a "Hybrid Experimental Synthesizer", it uses 18 digital sound engines (algorithms) to synthesize raw tones.[2] This digital oscillator is then fed into a multi-mode analog filter, giving the MicroFreak its hybrid sounds.
MicroFreak | |
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![]() The MicroFreak (taken at NAMM) | |
Manufacturer | Arturia |
Technical specifications | |
Polyphony | 4 (paraphonic) |
Timbrality | Monotimbral |
Oscillator | Single Multi-Mode Digital Oscillator |
LFO | Multi-shape LFO |
Synthesis type | See Sound Engines |
Filter | Multi-mode VCF |
Attenuator | Cycling envelope, ASR envelope and LFO |
Aftertouch expression | Polyphonic Aftertouch |
Input/output | |
Keyboard | 2 Octave PCB |
External control | Sends and receives MIDI, outputs CV |
Sound engines
The MicroFreak has 22 distinct sound engines (as of the 5.0 update).[3]
They are:[4]
- Basic Waves - a standard synth voice using traditional waveforms,
- Super Wave - a group of detuned waves (like a supersaw),
- Harmonic - a form of additive synthesis where you set volumes of frequencies individually,
- Karplus-Strong - a physical modelling system to replicate string sounds,
- Wavetable - a method of synthesis where the waveform transitions through a table of different waveforms,
- Noise - various types of noise and static.
- Virtual Analogue - a standard subtractive synth voice,
- Waveshaper - a triangle wave that is repeatedly wavefolded,
- Frequency Modulation (two operators) - a method of synthesis where a wave modulates the frequency of another wave,
- Formant - a form of granular synthesis,
- Chords - an engine that plays groups of notes paraphonically,
- Speech - a vocal synthesizer,
- Modal - a physical modelling engine that replicates the sound of hollow objects,
- Bass - another waveshaping algorithm specifically for basslines,
- Harm - a mixture of waveshaping and additive synthesis,
- SawX - a supersaw being phase modulated,
- Vocoder - a voice transformer similar to a talkbox,[5]
- User Wavetable - an engine to use your own wavetables,
- Sample - an engine that plays back loaded samples,
- Scan Grain - a granular synthesizer that scans through a whole sample,
- Cloud Grain - a granular synthesizer that creates overlapping grains from a sample, and
- Hit Grain - a granular synthesizer that creates percussive sounds from a sample.
Of those, 12 are made by Arturia (Basic Waves, Super Wave, Harmonic, Karplus-Strong and Wavetable, Noise, Vocoder, User Wavetable, Sample, Scan Grain, Cloud Grain, and Hit Grain), 7 are made by Mutable Instruments (Virtual Analogue, Waveshaper, Two operator FM, Formant, Chords, Speech and Modal) from their "Plaits" eurorack module,[6] and the remaining 3 are made by Noise Engineering.[7]
Updates
One of the USPs of the MicroFreak was its numerous firmware updates and improvements. Arturia continued to improve the user experience years after the original release of the MicroFreak.[8]
Major update timeline[9][10][8][3]
- 1.0 - MicroFreak is released with this firmware.
- 2.0 - Added Noise engine, chord mode and scale quantisation.
- 2.1.3 - Added Vocoder engine. Vocoder edition is released with this firmware.
- 3.0 - Added Noise Engineering oscillators, unison mode and more preset slots.
- 4.0 - Added User Wavetable Engine and 64 more preset slots.
- 5.0 - Added Sample and grain engines, 128 more preset slots, and a sample and hold mode for keybed modulation. Stellar edition is released with this firmware.
Reception
The MicroFreak was received very well from the synthesizer community. It is considered by some to be one of the best value for money synthesizers of modern times.[11][12] According to the music production website MusicTech it has "an enormous amount to offer and will really reward exploratory use".[12]
Review ratings
The MicroFreak received many high reviews on retail websites and specialist music blogs:
- 9/10 from MusicTech (MusicTech Choice Award)[12]
- 9/10 from MusicRadar[11]
- 4.6/5 on Amazon Reviews
- 4.8/5 on Sweetwater[13]
Impact

Legacy
The MicroFreak brought affordable digital synthesis to the masses and was popular due to its many sound engines and modulation options. It inspired future synthesizers and got many people into music production as a first synthesizer.[14][15]
The Freak Range
Following the success of the MicroFreak, Arturia made more versions and improvements to the MicroFreak and its successors.[16] It received a limited edition white Vocoder design in 2020. [5]

In 2022, during their 'Rendez-Vous' livestream,[17] Arturia released the MiniFreak, a larger 6 voice polyphonic upgrade of the MicroFreak with an extra oscillator. It improved upon the Microfreak and took into consideration some original criticisms of the MicroFreak.[18]
See also
- Arturia MiniBrute – another synthesizer by the same company
External links
- https://noiseengineering.us/ and https://mutable-instruments.net/ - the two other companies that contributed sound engines to the Microfreak
References
- Perrier, Morgan. "Arturia - MicroFreak - MicroFreak". www.arturia.com. Retrieved 2022-10-13.
- Perrier, Morgan. "Arturia - MicroFreak - MicroFreak". www.arturia.com. Retrieved 2022-10-13.
- O'Brien, Terrence (2023-05-10). "Arturia's MicroFreak gets sample playback, granular synthesis and gorgeous Stellar edition". engadget.com. Retrieved 2023-05-11.
- "Microfreak Oscillators". Arturia.
- Rogerson, Ben (2020-08-25). "Arturia releases MicroFreak Vocoder Edition, and there's a pleasant surprise for owners of the original synth, too". MusicRadar. Retrieved 2022-10-25.
- "About the Microfreak". Mutable Instruments' community. 2019-01-25. Retrieved 2022-10-25.
- Arblaster, Simon (2021-01-14). "Arturia collaborates with Noise Engineering to bring exciting new features to latest MicroFreak firmware update". MusicRadar. Retrieved 2022-10-25.
- Perrier, Morgan. "Arturia - MicroFreak - MicroFreak". www.arturia.com. Retrieved 2022-10-25.
- Mullen, Matt (2021-10-26). "Arturia's V4.0 MicroFreak firmware update adds WaveUser synth engine and 64 new presets". MusicRadar. Retrieved 2022-10-25.
- Future Music (2019-05-15). "Arturia MicroFreak review". MusicRadar. Retrieved 2022-10-25.
- Future Music (2019-05-15). "Arturia MicroFreak review". MusicRadar. Retrieved 2022-10-25.
- "Review: Arturia MicroFreak". MusicTech. Retrieved 2022-10-25.
- "Arturia MicroFreak Hybrid Synthesizer Reviews | Sweetwater". www.sweetwater.com. Retrieved 2022-10-25.
- "Best Synthesizers for Beginners - Perfect Circuit". www.perfectcircuit.com. Retrieved 2023-03-10.
- "A beginners guide to buying a synth". Engadget. Retrieved 2022-10-25.
- Taverdon, Alexandre. "Arturia - Freak - Freak". www.arturia.com. Retrieved 2022-10-25.
- Arturia (2022-10-19). "Arturia Announces Four New Products During "Rendez-vous"". Digital Music News. Retrieved 2022-10-25.
- Rogerson, Ben (2022-10-18). "Arturia's new MiniFreak is a polyphonic hybrid synth that goes where the MicroFreak didn't... and it comes with a free VST version". MusicRadar. Retrieved 2022-10-25.