9
Envelope sliders Filter sliders
The envelope sliders adjust the volume behavior of the  sound. 
The filter sliders adjust its tone.
Envelope Slider What It Adjusts
16’ Attack—This adjusts the speed at which 
a note reaches its full volume after you 
press its key on the keyboard.
5
1/2
’ Decay—This adjusts the time it takes for 
the note to get to its Sustain level.
8’
Release—This sets how long it takes for 
the note to fade to silence when its key is 
released.
Filter Slider What It Adjusts
1’ Cutoff—This adjust the frequency 
above or below which the sound’s filter 
removes frequency content from the 
sound. Sweeping the Cutoff up and 
down is a classic realtime effect for 
synth sounds.
Level Resonance—This adjusts the volume of 
the sound around the cutoff frequency.
 
The  sound  waves  that  together  make  up  a  sound  vibrate 
at  different  speeds,  or  “frequencies.”  Slower,  “low-frequency,” 
sounds produce lower pitches—they’re the bass in a sound. High-
frequency  waves  produce  higher pitches  in  the treble  range of  a 
sound. We refer to different speed ranges as “frequencies.”
To restore a sound you’ve changed with the sliders to its original 
settings, re-select the sound.
If you’ve got an iPad, you can program all of the settings in a synth 
sound or create your own—we’ll talk more about this later.
Realtime Fun
As  you’re playing  synth  sounds  on the  VR-09,  remember  you’ve got 
more than just sliders for making your sounds uniquely your own. 
The VR-09’s Responsive Keyboard
The VR-09’s keyboard detects the force, or “velocity,” with which you 
play, and the currently selected sound changes accordingly.
Low velocity High velocity
Getting louder and/or brighter as you play harder is the most common 
velocity response, though,  really,  lots of things  can change with  your 
playing force. Play a sound and seeing how it responds to your touch.
You can change the keyboard’s touch sensitivity, or “Initial Touch,” 
as described on page 45 of the Owner’s Manual.