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mutable instruments

price : $339.00

enough with the analog, warm and organic.

edges is a module strictly focused on the straight lines, sharp edges, and clinical harsh modulations of digital logic. its architecture is loosely based on classic 8-bit console soundchips, providing 4 simple voltage-controlled voices. each voice consists of a digital oscillator with two pitch cv inputs and a coarse pitch knob, with a gate input allowing the voice to be turned on/off without the need for an external vca. the 4 channels are sent to an onboard mixer – making edges easy to use for chord generation or heavy drone synthesis applications.

the first 3 channels are square/pulse digital oscillators, generated by subdivisions of a 4 mhz clock. 5 preset duty cycles settings are available from 50% to 95%. in addition, channel 4's cv input can be used as a pwm cv for channels 1 to 3, with a 120° dephasing between each channel.

channel 2 can be hardsynced to channel 1. channel 2 and 3 are also equipped with a xor ring-modulator, blending their harmonics with those of channel 1.

the fourth channel uses a 12-bit dac without oversampling/reconstruction filter to generate low-fi waveforms at a 48khz sample rate. the available waveforms are sine, triangle, nes triangle, and various flavors of pitched lsfr noise.


advanced features:
optional semitone quantizer on the pitch cv input.
per-channel mini step sequencer (8 steps) – perfect for creating rapid fire arpeggios. when the sequencer is active, the gate input works instead as a clock input.
auto-calibrate feature digitally scaling the 1 v/oct cv input to compensate for inaccuracies in cv converters… or to be used creatively to achieve other tunings than 1 v/oct.

technical characteristics:
5v voltage source needed (for example mutable instruments volts).
all inputs: 100k impedance, dc to 2 khz.
channel 1 to 3: 4mhz, 1-bit.
channel 4: 48khz, 12-bit.
open-source hardware and firmware.
current consumption: +12v: 25ma ; -12v: 20ma ; +5v: 45ma.

diy and mods options:
diy expander pcb.
midi input; with midi mode switch (multitimbral: 1 channel per voice ; or polyphonic: 1 single channel with notes dispatched to the 4 voices) and midi channel learn switch.
sub-oscillator for channel 1 with nes-style stepped triangle waveform.

download the quickstart guide here.

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