NLFfm 

freq 20 20000
gain 0 1 
gate 0 1

ModulationType 0 4
Nonlinearity 0 1
Modulation_Frequency 20 1000
NonlinearityAttack 0 2

VibratoFreq 1 15
Vibrato_Gain 0 1
VibratoAttack 0 2
VibratoRelease 0 2

VibEnvelopeAttack 0 2
VibEnvelopeDecay 0 2
VibEnvelopeRelease 0 2