Description

Ouija is an unconventional joystick module. It takes the core concept of a crossfader and dissects it to provide more patching possibilities.

Ouija can be patched into a:

• Manual CV Generator
• CV manipulator and Mixer
• Audio Mixer
• CV or Audio Crossfader

Each of the 4 inputs is provided with it’s own attenuverter (-1x to +1x gain), which are then fed into the X and Y axes of the joystick. All four inputs are normalised to +12V, so Ouija can generate CV on its output with no inputs patched.

Channels 1 and 2 are fed to the Y axis, and Channels 3 and 4 to the X axis. These axes are configured as complementary attunuators . In the most upward position of the Y axis, all of Channel 2 will be sent to 2’s output, while none of Channel 1 will be sent to 1’s output. In the middle position, 50% of each input will be sent to its corresponding output.

The MIX output is a 1:1 sum of all 4 outputs. Patching an output will remove it from the MIX output.

To build a simple crossfader, you can patch the outputs of 1 and 2 (or 3 and 4) to a mixer.

To use Ouija as an audio mixer, patch 4 inputs and use the MIX output. Any unused input channels can be set to 0 on the attenuverter to eliminate DC offset.

Ouija – Build Document

Specs:

• Width: 12hp
• Depth: 29.5mm
• Power Consumption: +12V, 42mA, -12V 21mA