User’s Manual Pulse • PulsePlus
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11.3 CV/Gate Interface
Via the CV/Gate interface analog synthesizers can be connected to the Pulse Plus. By
offering input and outputs, the Pulse can control a device on one hand, on the other hand,
it can be controlled by a external device. There are also two ways of using the interface: in
combination with the internal sound generation or without.
In detail the following connectors are availiable:
• 1 control voltage input CV In 쐃
• 1 gate input Gate In 쐇
• 2 control voltage outputs CV 1 Out 쐋 and CV 2 Out 쐏
• 1 gate output Gate Out 쐄
Via the inputs CV In 쐃 und Gate In 쐇 the control voltage of an external keyboard or
synthesizer can be transformed into MIDI data. The notes generated on this way can be
used to trigger the sound generation of the Pulse. Also they can be sent out at the MIDI Out
jack for recording and postprocessing.
The output stage of the interface has two seperate connectors, which are designed for
different purposes:
The control voltage at CV 1 Out 쐋 is following the pitch. It can be scaled linear or
logarithmic and is intended to be used for controlling oscillating devices.
CV 2 Out 쐏 is an additional control voltage output for modulation controls. It can be
routed to a choosable modulation source of the Pulse. A possible application for using this
output is controlling the cutoff frequency of a connected synthesizer.
Gate In 쐇 and Gate Out 쐄 have a separately switchable polarity parameter. At the output
the level can be switched between 5V and 12V. This provides the most possible flexibility.
The parameter setting of the CV/Gate interface consists of two main areas:
• Sound parameters for modulation assignment: CV 2 Source and CV 2 Amount.
They are stored in their corresponding program. Please read the chapter
„Modulation“ to get more information.
• Global parameters for configuration and adjustment: CV/Gate Channel, CV In
Adjust, CV In Transpose, Gate In Polarity, Gate Out Polarity, CV Out Curve, CV
Out Adjust, CV Out Offset. They are not depending on the programs.
For troublefree operation of the interface, the proper setting of the discribed global
parameters is required.
You can also use a foot switch at Gate In 쐇 to trigger the interface. Use a stereo
phone jack with the following wiring: Tip and Ring connected (Ring is pulled up to
+5V-Level), Switch between Tip/Ring and Ground. In this case the parameter Gate In
Polarity should be set to up.
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