Dave Smith Instruments PRO 2 - Manual (Page 109)

99 Pro 2 Operation Manual Appendix D: MIDI Implementation
NRPN Value Description
97 0-127 Filter 2 Mode
0 = Low-Pass
63 = Notch
127 = High-Pass
98 0-127 Normal to Band-Pass (continuously variable)
0 = Normal State-Variable (LP, N, HP)
127 = Band-Pass
99 0-3 Filter Selection
0 = Filter 1 enabled
1 = Filter 2 enabled
2 = Filter 1 & 2 enabled
3 = Split Oscillators on
100 0-127 Filter Routing, Serial to Parallel
0 = Fully Serial, F1 into F2
127 = Fully Parallel
105 0-254 Feedback Amount
0 to 126 = -127 to -1
127 = 0
128 to 254 = 1 to 127
106 0-48 Feedback Tuning
107 0-127 Voice Volume
109 0-127 Distortion Amount
111 0-127 VCA Envelope Amt
112 0-127 Velocity to VCA Env Amt
113 0-127 VCA Env Delay
114 0-127 VCA Env Attack
115 0-127 VCA Env Decay
116 0-127 VCA Env Sustain
117 0-127 VCA Env Release
118 0-1 VCA Env Repeat
0 = Off
1= On
122 0-254 Filter 1 Envelope Amt
0 to 126 = -127 to -1
127 = 0
128 to 254 = 1 to 127
123 0-127 Velocity to Filter 1 Env Amt
124 0-127 Filter 1 Env Delay