Plug-in Reference

138
MIDI Effects
Context Gate
Context Gate
The Context Gate allows for selective triggering/filtering of MIDI data. It features two
modes: in Poly Mode the Context Gate recognizes certain chords that are played and
in Mono Mode only certain MIDI notes are let through. These modes can be used for
context selective control of MIDI devices and are, for example, very useful in certain
live scenarios.
The following parameters are available:
Poly Mode – Polyphony Gate
This allows you to filter MIDI according to the number of pressed keys within a given
key range. This can be used independently or in conjunction with the Chord Gate
function.
• The Key Range Limit sliders set the key range.
Only notes within this range are let through.
• The “Minimum Polyphony” value field allows you to specify the minimum number of
notes required to open the gate.
Ratio Determines the rate of compression applied to the velocity values
above the threshold level. Ratios greater than 1:1 result in
compression, that is, less difference in velocity, while ratios lower
than 1:1 result in expansion, that is, greater difference in velocity.
What actually happens is that the part of the velocity value that is
above the threshold value is divided by the ratio value.
Gain Adds or subtracts a fixed value from the velocities. Since the
maximum range for velocity values is 0 to 127, you may need to use
the Gain setting to compensate, keeping the resulting velocities
within the range. Typically, you would use negative Gain settings
when expanding and positive Gain settings when compressing.
Parameter Description
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Cubase Nuendo NEK
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