Envelope Follower - Korg Radias Owner's Manual

Virtual Patch (VIRTUAL PATCH)
The virtual patch section lets you freely assign modulation sources to modulate-able parameters, giving you
even more flexibility for creating sounds. You can make six virtual patch assignments in each timbre.
Modulation Sequencer (MOD SEQUENCER)
Using a modulation sequencer, you can apply up to sixteen discrete values (steps) to a modulate-able pa-
rameter over time, in a manner similar to vintage analog synthesizers. The modulation sequence can play
once, repeat, loop front to back, etc. - providing movement and complexity to the sound. The value can
change abruptly at each step, or it can smoothly transition from value to value. The value of each step can
be set using the sixteen front panel knobs, or by using the Motion Rec function to record knob movements
(changes in parameter values) in realtime. Each timbre provides three sequencers, allowing you to create ex-
tremely complex tonal changes.
Equalizer (EQ) and Insert Effects (INSERT FX1/FX2)
Each timbre is equipped with a two-band Equalizer to further control the overall tone. In addition, each tim-
bre also possesses two insert effects. Thirty different effect types are available, and their 128 editable effect
program locations to save your favorites. Certain effects can by synced to the tempo of the internal clock that
is running the arpeggiator, step sequences, etc. - or to an external MIDI clock. Tempo Sync effects can be con-
veniently set as note values (Half-note, quarter-note, etc.).
Arpeggiator (ARPEGGIATOR) and Step Sequencer (STEP SEQUENCER)
Each program contains one arpeggiator and two step sequencers. Each timbre in a program can be assigned
to be played by the arpeggiator or by one of the step sequences. The arpeggiator lets you choose one of six
arpeggio types, and each of the thirty-two steps can be set as a note, tie or rest (off) to create more complex
arpeggio patterns. Each step sequencer lets you record a phrase of up to thirty-two steps; both sequencers
can be used together to create a single step sequence up to sixty-four steps. The playback of the step sequenc-
er can also be set to transpose based on the notes being played on the keyboard (or via MIDI).
Master effect (MFX)
Each program contains one master effect.
You can use this to apply a reverb or delay effect to the overall combined sound of the program including
the processing applied by the insert effects of each timbre, adding the final touch to the complete program.
You can choose from thirty different effect types, and 128 editable effect programs.

Envelope follower

In electronic music terms, an envelope is the "shape" of a sound's change in volume level from start to finish.
Each program contains an envelope follower, which generates a changing modulation source based on the
envelope of an external audio signal or an internally bussed sound. This detected envelope can also be used
to generate note-on/off events.
How a program is structured
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