E-RM’s polygogo Eurorack module is the very first digital stereo oscillator to feature the brand-new Polygonal Synthesis technique, invented by E-RM founder Maximilian Rest and DSP specialist Christoph Hohnerlein. Based on complex two dimensional amplitude shaping of sine waves, the polygogo is a performance-oriented, high-quality instrument which allows you to explore fascinating sounds and shapes alike. Polygonal Synthesis is heavily centered around the interaction between user and polygonal object behind the OLED screen. Based on the number of vertices (order) and their displacement (teeth), the fundamental tone and the harmonic ratio are created. Rotational modulation (roll) pans the sound in the stereo field or acts as a vibrato. The internal linear FM operator (OP ratio / OP amt) can modulate the fundamental frequency and its high spectral content. An analog overflow stage at the output (fold) is able to act as a wave crusher – thus, it gives sounds the finishing touch right in front of the output (X/Y). All main parameters are accessible via sliders. For fine-tuning and to give sounds some additional tweaks, potentiometers were added. Control voltages can be used to modulate each and every parameter. With a cable plugged into one of the CV inputs, the corresponding potentiometer turns into an attenuator respectively attenuverter. Push buttons allow you to choose between three modes of operation. In detail, there are “Infinite Cycling”, “quantized Order” and “stepped OP ratio”. Last but not least, a hard sync input is available. Video: https://youtu.be/4kqg3imrWggProduct Specs Item Number: 12633 Make: E-RM Model: Polygogo Condition: Brand New Finish: Black Categories: keyboards-and-synths ⇒ eurorack Function: Oscillator Digital Dual/Stereo Made In: Germany MPN: ERPogo Modular Grid: Eurorack ⓘ ＋ Dimensions: 32 HP 26 mm deep Power: 110 mA +12V 15 mA -12V 0 mA 5V
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