SB AWE32 Developer's Information Pack
PART IV MIDI NRPN Implementation
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88
Copyright
Creative Technology Ltd., 1994-1996
Version 3.00
Pitch/Filter Envelope Modulation
These two parameters determine that modulation depth of the pitch and filter envelope. In the wind
instrument example above, a small amount of pitch envelope modulation is desirable to simulate it’s
natural pitch characteristics.
SB AWE32 MIDI NRPN List
Note: “Realtime” means that the parameter can also affect a sustaining note. For example, filter sweep
on a sustaining sound can be achieved by sending continuous NRPN LSB 21 (initial filter cutoff).
NRPN LSB 0 (Delay before LFO1 starts)
Realtime
: No
Range
: [0, 5900]
Unit
: 4 milliseconds
LFO1 Delay from 0 to 22 seconds.
NRPN LSB 1 (LFO1 Frequency)
Realtime
: Yes
Range
: [0, 127]
Unit
: 0.084Hz
LFO1 frequency from 0Hz to 10.72 Hz.
NRPN LSB 2 (Delay before LFO2 starts)
Realtime
: No
Range
: [0, 5900]
Unit
: 4 milliseconds
LFO2 Delay from 0 to 22 seconds.
NRPN LSB 3 (LFO2 Frequency)
Realtime
: Yes
Range
: [0, 127]
Unit
: 0.084Hz
LFO2 frequency from 0Hz to 10.72 Hz.