Yamaha Clavinova CVP-805 Reference Manual page 79

Piano
Lets you set the parameters for the "VRM Piano" category Voices.
VRM* VRM
Damper Resonance Depth
String Resonance Depth
Reverb Depth
Chorus Depth
Key Off Sampling
*These settings are applied commonly to all parts for which VRM Voices are selected.
CVP-809/CVP-805 Reference Manual
Turns the VRM effect on or off.
Adjusts the depth of the VRM effect heard when pressing the damper pedal.
Adjusts the depth of the VRM effect heard when playing the keyboard.
Adjusts the Reverb depth for VRM Voices.
Adjusts the Chorus depth for VRM Voices.
Adjusts the volume of the key-off sound (the subtle sound that occurs when
you release a key). This is not applied to the "Concert Upright" Voice.
Voice Settings
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