ADDAC310 Pressure to CV

CV Breath Controller

Control Eurorack using your breath with this unique module from ADDAC. A melodica pipe connected to the front panel allows you to generate two independent CV signals from breath inputs.

This module expands ADDAC's line of expressive controls, it follows the heritage of wind / breath controllers with one major difference, the pipe has no air escape creating pressure inside the tube controlled by the user's mouth. For a seasoned woodwind or brass musicians 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 different settings to independently control the VCA and VCF of any standard analogue voice patch.

Pipe

ADDAC are 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)

10HP
4.5cm deep
70mA +12V
40mA -12V

https://www.addacsystem.com/en/products/modules/addac300-series/addac310