ADDAC System ADDAC310

• Dual-channel pressure to CV controller
• Each channel features attack and decay controls
• Response curve can be adjusted from logarithmic to linear to exponential
• Hold buttons freeze voltage output, can be triggered via CV
• Gate outputs per channel set by gate threshold
• Melodica wind pipe included
• CV and Inverted CV outputs on each channel

ADDAC System ADDAC310 Pressure to CV

Controller module

This module expands our line of expressive controls, it follows the heritage of wind/breath controllers with one major diference: the pipe has no air escape creating pressure inside the tube controlled by the user’s mouth. For a seasoned woodwind or brass musician this working principle may sound unorthodox, however this way pressure can be controlled for longer without the need to breath in or learning circular breathing techniques. It’s relatively easy to control the pressure in your mouth while still breathing through the nose.

The module is provided with a standard melodica pipe which connects to an air filter (providing a receptacle for condensation to form and isolate the sensor) and lastly connects to the module frontpanel.

The signal captured by the sensor is then sent to two independent sections with exactly the same functions as seen in the signal flow diagram below.

As an example the two sections can be used with diferent settings to independently control the VCA and VCF of any standard analog voice patch.

PIPE

We’re using a standard Melodica pipe into an air filter that will keep condensation away from the sensor. The air filter is then connected to the frontpanel sensor input using a silicone tube.

SENSOR CALIBRATION

[RESPONSE] is the main control to calibrate the pressure curve, the knob goes from exponential to logarithmic with linear at 12 o’clock. Exponential will be more reactive to high pressures, logarithmic to lower pressures.

HOLD FUNCTION

This feature allows to hold the current voltage value with the hold is engaged (button led on), the state can be changed either by the push button in a latching manner (push to change state) or via the gate input in a momentary manner (hold on while gate is on)

EXTRA PIPE

Extra Pipes are sold separately

Tech Specs:

• 10HP
• 45mm deep
• 70mA +12V
• 40mA -12V