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. SPECIFICATIONS • E-RM Polygonal Synthesis technique• 384 kHz internal sample rate• 24 bit / 96 kHz stereo output• High contrast OLED interface• Six performance sliders for all main parameters• Eight fine tune potentiometers / precision attenuators respectively attenuverters• Three push buttons with LED feedback for selecting a mode of operation SOUND SHAPING PARAMETERS AND THEIR CONTROL ELEMENTS • Pitch (slider, potentiometer)• Order (slider, potentiometer)• Teeth (slider, potentiometer)• Roll (slider, potentiometer)• Operator Ratio (slider, potentiometer)• Operator Amount (slider, potentiometer)• Exponential FM Input (potentiometer)• Fold (potentiometer) CONNECTORS • High speed V/oct and exponential FM inputs (24 bit / 96 kHz)• Six actively filtered CV inputs (16 bit / 6 kHz)• One trigger input for hard sync DIMENSIONS • 3U Eurorack module, 32 HP wide, 26 mm in depth• 110 mA @ +12 V• 15 mA @ -12 V• Weight: 266 g
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