genesis (deflemask) YM2612 pmd98 (YM2608) VOPM Name Range
Reference number 0~255
A AR AR Attack Rate 0~31
D DR D1R Decay Rate 0~31
- SR D2R Sustain Rate 0~31
S SL D1L Sustain Level 0~15
D2 - D2R second decay rate (d2r) 0~31
R RR RR Release Rate 0~15
TL TL TL Total Level 0~127
? KS KS Key Scale 0~3
Mult ML MUL Multiple 0~15
DT DT DT1 Detune 0~7
DT2 Detune coarse 0~3
AMS AM AMS AMS Enable 0~1
ALG AL CON Connection 0~7
PAN panning
FB FB FL Self Feedback 0~7
1 Byte: LFO (FMS on YM2612, PMS on YM2151) 1 Byte: FB 1 Byte: ALG 1 Byte: LFO2 (AMS on YM2612, AMS on YM2151)
Repeat this TOTAL_OPERATORS times
1 Byte: MULT 1 Byte: TL 1 Byte: AR 1 Byte: DR 1 Byte: SL 1 Byte: RR 1 Byte: AM 1 Byte: RS 1 Byte: DT (DT2<<4 | DT on YM2151) 1 Byte: D2R

See also:

From the VOPM manual: http://tanalin.com/en/articles/third-party/vopm-manual/

Abbreviation Description
AMS Amplitude-Modulation Sensitivity
AR Attack Rate
C1/C2 Carrier 1, Carrier 2
D1L Decay Level 1
D1R/D2R Decay Rate 1, Decay Rate 2
DT1 Fine Detuning
DT2 Coarse Detuning
FL Feedback Level
FRQ LFO Frequency
KS Key Scaling
M1/M2 Modulator 1, Modulator 2
MUL Multiplier
NFRQ Noise Frequency
OP Operator
PMS Pitch-Modulation Sensitivity
RR Release Rate
TL Total Level (operator level)

#article #opm #fm

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