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Mutable Instruments Blinds
Mutable Instruments Blinds
Quad VC-polarizer
Overview
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.
echnical 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.
