WMD OSD (OR / SUM / DIF) Utility Eurorack Module

WMD OSD, aka OR SUM DIF, is 3 independent blocks of useful utility in 4HP. OSD is centered around combining voltage in useful ways. Audio, V/Oct, and control voltage are at home in this utility. OSD offers a fully DC-coupled signal path with precision components to make this happen. High quality, configurability, and compact size ensure OSD will always find its way into your patch.

• Combine v/Oct sequences with precision summing, or enable the precision OR circuit for completely different results
• Mix two envelopes or an envelope and LFO using sum to create large accented voltages or combine with OR to keep the output in the original range
• Crossfade between audio or control voltage using the potentiometer in block one, setting DIF will invert the signal at the B jack

What is OR, SUM, and DIF?

• OR - Input voltages are compared and the higher of the two is passed to the output (if A = 4V and B = 8V, the output will be 8V)
• SUM - Input voltages are added together to create the output voltage (if A= 3V and B=4V, the output will be 7V, this clips at -10V and 10V)
• DIF - Lower voltage source is subtracted from the higher voltage, producing an output of the difference between the two (if A= 3V and B = 5V, the output will be 2V)

Controls/Configuration

• Block 1 - Sum, OR, or Difference of two inputs and effect the mix of the A input to the B input with the Knob, the third input ORs with the result of the A/B inputs
• Block 2 - Sum, OR, or Difference two inputs with a fixed mix of 50%, the third input ORs with the result of the A/B inputs
• Block 3 - 3 input OR, mix gates or CV from three sources for some wild results