Arturia KeyStep - Controller / Sequencer - Manual (Page 46)

7.2. Modulation (Mod) output
7.2.1. How does the Mod output work?
The Mod output connector sends voltage values generated by one of three sources inside
the KeyStep: the Mod strip, aftertouch, or velocity. You can use this output to control volume,
filter frequency, or any number of other modules on the target device.
The MIDI Control Center allows you to specify which of the three sources you want to use
to control the Mod output. See chapter 8 [p.42] to learn about this parameter.
7.2.2. Can my DAW control the Mod output?
The MIDI Control Center allows you to specify which of three types of data you want to use
to control the Mod output: velocity, aftertouch, or a MIDI Continuous Controller (CC). You can
also specify the MIDI CC number.
See chapter 8 [p.42] to learn about these parameters.
7.3. Routing the signals
Typically the Pitch (CV) output is connected to a Voltage Controlled Oscillator (VCO), the Gate
output is connected to a trigger input or a Voltage Controlled Amplifier (VCA), and the Mod
output is connected to a VCA or a Voltage Controlled Filter (VCF) or both through a splitter
or a patch bay. Those routings will produce the most predictable results. But you can send
those signals to any parameters that will accept them.
7.4. CV/Gate/Mod specifications
Some analog synthesizers have unusual implementations that are not fully compatible
with the KeyStep CV/Gate/Mod signals. Please refer to their specifications before making a
purchase so you can be sure the two devices will work together well.
We’ve designed KeyStep to be as flexible as possible, though: the MIDI Control Center allows
you to configure the response of the CV/Gate and Mod jacks in a number of ways.
Here are the ranges of electrical signals that can be sent by the KeyStep CV, Gate, and Mod
jacks:
• Pitch has two options, each with its own keyboard reference settings:
◦ 1 Volt/octave (0-10V)
▪ 0 volt MIDI note range: C-2 to G8
◦ Hertz per volt (max ~12V)
▪ 1 volt MIDI note range: C-2 to G8 (1V reference default: C0)
• The Gate output has three options:
◦ S-trigger
◦ V-trigger: 5 volts
◦ V-trigger: 12 volts
• The Mod output has eight options ranging from 0-12 volts.
See chapter 8 [p.42] for a description of the related MIDI Control Center parameters.
41 Arturia - User Manual KeyStep - CV/Gate/MOD functions