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Soulsby miniAtmegatron 8-bit Kit Synth

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    The miniAtmegatron is a small 8-bit kit synth. It comprises of a DIY kit shield, Arduino Uno and enclosure. The audio engine based on the Atmegatron. If you’re a dab hand at soldering and want to dip your toes into the 8-bit ocean, this could be the synth for you! The package comes with instructions, PCB, all the electronic components, MIDI-hacked Arduino Uno and perspex enclosure. The shield kit and enclosure are also available separately.

    The miniAtmegatron synthesis engine is based on the Atmegatron engine, with some features cut back or removed because of the simpler interface. Like the Atmegatron, the mini uses the PWM output of the Atmega328P processor.

    The Atmegatron uses the Atmel 328P processor, which is also at the heart of most Arduino development boards. Audio is generated by modulating a PWM output of the processor and then filtering off the modulation frequency. The Atmegatron uses analogue circuitry in the form of a steep 3rd order Chebyshev filter to maintain the high end, while still filtering off the modulation frequency.

    The Atmegtron’s software uses 2 loops to create it’s unique sound. One loop uses an interrupt to update the PWM output at audio frequencies. The other loop is slower and is used for everything else (MIDI input, process the wavetable, update LFOs, envelopes, arpeggiators etc). This unique synthesis method means that while the Atmegatron is clearly at home among classic Chiptune synthesizers, it also sounds highly individual.
    Type: Digital
    Synthesis: Subtractive, Wave Table
    Oscillators: 2
    Waveforms: Pulse, Saw Down, Saw Up, Sine, Square, Triangle, Wave Table
    Osc Modulation: Envelope, Glide / Portamento, Input, Knob
    Envelopes: 2
    Evelope Paramerters: Attack, Decay, Sustain, Release
    Filters: 1
    Filter Notes:
    + 15 digital filter algorithms
    LFO: 1
    LFO Notes::
    + 16 waveforms
    Polyphony & Tuning
    Polyphony: 1
    Timbrality: 1
    Tuning: Standard
    Modes: Mono
    Patches RAM: 1
    Storage: Internal, USB
    + Bitcrush
    + Phaser
    + Distortion
    + Sequence player
    + 15 sequences
    Chips and Operating System
    Atmega328P processor
    Case: Desktop
    Controls: Buttons, Knobs
    Display Type: LED
    Audio Output Connections: 1/8" Phone Jack, Mono Out
    Audio Output Count: 1
    MIDI Ports: USB
    DAC Bits: 8
    Year Released: 2017
    Manuals & Documents

    Product Links
    Company Product Sites:
    Repairs and Support
    Retail Street Price: £68 - convert
    YouTube Videos
    Related Synthesizers
    Atmegatron (2014)
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