via Mutable Instruments
"Blinds is a 4-channel voltage-controlled signal polarizer. Each channel consists of a polarizer circuit, also known as a four-quadrant multiplier. This circuit acts like a VCA, except that a negative control voltage will cause the output signal to be inverted, instead of being silenced. Blinds’ outputs are daisy-chained, allowing adjacent groups of 2, 3, or all 4 channels, to be mixed together.
One can think of Blinds’ as a voltage-controlled version of Shades, the control center for all the modulation CVs used in a patch. Many other uses are possible, though. For example, each individual channel can be used to scale/offset a CV; and with audio rate modulation signals, each channel acts like a ring-modulator, with massive potential for drones and feedback patches.
Technical characteristics
All inputs DC-coupled.
All inputs handle audio-rate signals.
Input impedance: 100k for all inputs.
CV offset range: +/- 5V.
Gain scale: linear, a +5V CV translates to a gain of 1.
Gain range: +/- 2.
12-HP.
Current consumption: +12V: 70mA ; -12V: 70mA.
Open-source hardware."
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