This programable electronic step synthesiser contains the core parts of a modular synth setup. There is a fundamental variable shape frequency oscillator that is adjustable from 27.5Hz A0 to 3951.1Hz B7. There are an additional 7 oscillators that operate at fixed harmonics e.g. f*2 to f*6 of the main oscillator that can be individually mixed in. These also operate at f/2 & f/4 for sub harmonic effects.
The signal then passes through a frequency modulator (FM), amplitude modulator (AM), a MOOG style filter and ADSR envelope. Each stage has its own set of parameters that can be fully adjusted.
Each of the 32 steps can be switched ON or OFF and set to individual frequencies or notes. A reset count sets the total number of steps in the sequence. The steps can be played in various patterns e.g. forwards, backwards, 2’s 4’s etc and kind of Euclidean rhythms at an adjustable speed or BPM. The speed can also be controlled externally with any device having a 5V CV GATE Output.
There are 6 instant play / save memories and a save all to memory card option that also saves all of the effects settings.
If all of these parts consisted of separate modular synth modules, then the cost of the whole system would run into thousands of pounds or dollars. The price of the parts to build the prototype were approximately £150. I anticipate as a kit with PCB it may cost around £300 UK.
The modular design allows the user to craft and create an infinite number of beat patterns and apply filter and effects during the play. The circular design and illuminated touch switches make it quite unique and stylish and maybe a bit retro. I would suit chip tune creators, techno beat designers, hobby and professional musicians.
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