- 2024-02-04 ISGK Instruments
- https://github.com/risgk/digital-synth-vra8-u
- Notes
- $ : Disabled in Paraphonic Mode
- $$ : Disabled in Paraphonic or if Osc 1 Wave is not Pls
- $$$ : Disabled in Paraphonic or if Osc 1 Wave is Pls
- Osc 1 Wave [Saw|-|Tri|Pls|Sqr]
- 0 (0-47): Saw Wave
- 64 (48-79): Triangle Wave
- 96 (80-111): Pulse Wave (Shape adjustable)
- 127 (112-127): Square Wave
- Osc 1 Shape $$
- Pulse Wave (= 1st Saw + Phase Shifted 2nd Saw)
- 0: Pulse Width 50%, or 2nd Saw Phase 50% (min)
- 64: Pulse Width 25%, or 2nd Saw Phase 25%
- 96: Pulse Width 12.5%, or 2nd Saw Phase 12.5%
- 127: Pulse Width 0%, or 2nd Saw Phase 0% (max)
- Pulse Wave (= 1st Saw + Phase Shifted 2nd Saw)
- Osc 1 Morph $$
- Pulse Wave
- 0: Pulse 100% = Saw 100% + Reverse Saw 100% (min)
- 32: Pulse 50% + Saw 50% = Saw 100% + Reverse Saw 50%
- 64: Saw 100%
- 96: Saw 100% + Saw 50%
- 127: Saw 100% + Saw 100% (max)
- Pulse Wave
- Mixer Sub Osc $$$
- Osc 2 Wave $ [Saw|-|Tri|Nos|Sqr]
- 0 (0-47): Saw Wave
- 64 (48-79): Triangle Wave
- 96 (80-111): White Noise
- 127 (112-127): Square Wave
- Osc 2 Coarse $ [-|+]
- -48 (16): -48 semitone (min)
- +48 (112): +48 semitone (max)
- Osc 2 Fine $ [-|+]
- -64 (0): -100 cent (min)
- +63 (127): +98.4375 cent (max)
- Mixer Osc Mix $ [1|2]
- Filter Cutoff
- 4: f = 452.9 Hz (min)
- 64: f = 2561.9 Hz
- 124: f = 14492.6 Hz (max)
- Filter Resonance
- 16 (0-23): Q = 0.7 (min)
- 32 (24-39): Q = 1.0
- 48 (40-55): Q = 1.4
- 64 (56-71): Q = 2.0
- 80 (72-87): Q = 2.8
- 96 (88-103): Q = 4.0
- 112 (104-127): Q = 5.6 (max)
- Filter EG Amt [-|+], LFO Filter Amt [-|+]
- -60 (4): -120 (min)
- +60 (124): +120 (max)
- Filter Key Track $ [0.0|0.5|1.0]
- 0 (0-31): 0.0
- 64 (32-95): 0.5
- 127 (96-127): 1.0
- EG Decay, Amp Decay
- 127: No Decay
- EG Osc Amt [-|+], LFO Osc Amt [-|+]
- Pitch
- -39 (25): -24 semitone (min)
- -27 (37): -12 semitone
- -16 (48): -1 semitone
- -12 (52): -75 cent
- -8 (56): -50 cent
- -4 (60): -25 cent
- +0 (64): +0 cent
- +4 (68): +25 cent
- +8 (72): +50 cent
- +12 (76): +75 cent
- +16 (80): +1 semitone
- +27 (91): +12 semitone
- +39 (103): +24 semitone (max)
- Shape
- -63 (1): Shape -252 (min)
- +63 (127): Shape +252 (max)
- Pitch
- EG Osc Dst [P|2P|1S], LFO Osc Dst [P|2P|1S]
- 0 (0-31): Osc 1 & 2 Pitch
- 64 (32-95): Osc 2 Pitch
- 127 (96-127): Osc 1 Shape
- Voice Mode [Par|-|Mon|Lgt|LP]
- 0 (0-31): Paraphonic (LFO Single Trigger)
- 64 (32-79): Monophonic (EG & LFO Multi Trigger)
- 96 (80-111): Legato (Monophonic, EG & LFO Single Trigger)
- 127 (112-127): Legato Portamento (Monophonic, EG & LFO Single Trigger, Auto Portamento)
- LFO Wave [T1|T2|Saw|SH|Sqr]
- 0 (0-15): Triangle Wave (-0.5 to +0.5)
- 32 (16-47): Triangle Wave 2 (Key Sync, -0.5 to +0.5)
- 64 (48-79): Saw Wave (Key Sync, -0.49 to +0.5)
- 96 (80-111): Sample & Hold (Key Sync, -0.49 to +0.5)
- 127 (112-127): Square Wave (Key Sync, 0.0 to 1.0)
- LFO Rate
- 0: 0.2 Hz (min)
- 64: 2 Hz
- 96: 6.3 Hz
- 127: 20 Hz (max)
- LFO Depth
- The actual LFO depth is the "LFO Depth" value plus the "Modulation" value
- Chorus Mode [Off|M|PS|S|S2]
- 0 (0-15): Chorus Off
- 32 (16-47): Mono Chorus
- 64 (48-79): Pseudo-Stereo Chorus
- 96 (80-111): Stereo Chorus
- 127 (112-127): Stereo 2-phase Chorus
- Chorus Rate
- 4: LFO Frequency 0.06 Hz (min)
- 32: LFO Frequency 0.48 Hz
- 64: LFO Frequency 0.95 Hz
- 127: LFO Frequency 1.9 Hz (max)
- Chorus Depth
- 0: Delay Time +/- 0.0 ms (min)
- 32: Delay Time +/- 2.0 ms
- 64: Delay Time +/- 4.1 ms
- 126: Delay Time +/- 8.1 ms (max)
- Chorus Delay Time
- 0: 0.03 ms (min)
- 64: 8.2 ms
- 80: 10.3 ms
- 127: 16.3 ms (max)
- Pitch Bend Range
- 0: 0 semitone (min)
- 24: 24 semitone (max)
- Setting C0 -- Chorus Mode: 127, Chorus Rate: 32, Chorus Depth: 32, Chorus Delay Time: 64
- Setting C1 -- Chorus Mode: 127, Chorus Rate: 16, Chorus Depth: 32, Chorus Delay Time: 64
- Setting C2 -- Chorus Mode: 127, Chorus Rate: 48, Chorus Depth: 32, Chorus Delay Time: 64
- Setting D1 -- Chorus Mode: 127, Chorus Rate: 16, Chorus Depth: 32, Chorus Delay Time: 80
- Setting D2 -- Chorus Mode: 127, Chorus Rate: 16, Chorus Depth: 40, Chorus Delay Time: 60
- Setting D3 -- Chorus Mode: 127, Chorus Rate: 32, Chorus Depth: 24, Chorus Delay Time: 60
- Setting J1 -- Chorus Mode: 127, Chorus Rate: 32, Chorus Depth: 32, Chorus Delay Time: 20
- Setting J2 -- Chorus Mode: 127, Chorus Rate: 48, Chorus Depth: 32, Chorus Delay Time: 20
- Chorus Mode [Off|S|PS]
- 0 (0-31): Chorus Off
- 64 (32-95): Stereo Chorus
- 127 (96-127): Pseudo-Stereo Chorus
- Chorus Depth
- 0: Delay Time +/- 0.0 ms (min)
- 64: Delay Time +/- 2.0 ms
- 125: Delay Time +/- 4.0 ms (max)
- Chorus Delay Time
- 0: 0.03 ms (min)
- 64: 4.1 ms
- 125: 8.1 ms (max)