logue-osc

  • 语言C
  • 默认分支master
  • 大小19.4 MB
  • 更新2025年10月30日
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README

logue-osc

Custom oscillators for Korg logue-sdk compatible synths

You can get the latest pre-compiled versions of the oscillators in the releases section. For user-customizable oscillators, an online constructor is available at https://dukesrg.github.io/logue-osc/.

Project structure

Oscillator description

  • Supersaw - Saw with unison.
  • FastSaw - The same as Supersaw, rewritten with Q31 fixed point. Less CPU resource consumption; i.e. more unison/polyphony/FX avaiable without sound degradation.
  • Morpheus - Example implementation of custom wavetable inspired by WaveEdit.
  • FMxx - 6/4-operator FM oscillator series with up to 4 Yamaha DX7/DX21/DX11-series voice banks suport. Refer to table below for features comparison. Current progress is in issue FM64 features implementation.
  • Anthologue - 6 VCO oscillator with Korg logue-series program suport. Current progress is in issue Anthologue features implementation.

Oscillator Parameters

Oscillator Shape / A knob Shift-Shape / Alt / B knob Param 1 Param 2 Param 3 Param 4 Param 5 Param 6
Supersaw
FastSaw		 Unison level Detune level Unison range 1…12 pairs Detune range 1…100 cents Band limit 0…100% Attenuate 0…30dB Route LFO
1 - Shape / Unison
2 - Shift-Shape / Detune
3 - both		 Polyphony 1…12 voices
Morpheus Morph X
LFO X rate 0.0…10.0Hz
or wave X position		 Morph Y
LFO Y rate 0.0…10.0Hz
or wave Y position		 LFO X mode LFO Y mode LFO X wave LFO Y wave LFO X depth -100%…100% LFO Y depth -100%…100%
Anthologue Assignable controller 1 Assignable controller 2 Program select 1…25 Sub timbre select 1…25 Play mode select
1 - note
2 - sequence trigger
3 - sequence trigger with native BMP		 Assignable controller 1 select 1…79 Assignable controller 2 select 1…79 -

Oscillator notes

  • Oscillators are developed and tested on the NTS-1, which can utilize about twice the CPU performance compared to the Prologue and Monologue XD. The latter may experience oscillator sound degradation with some of the FX enabled, or even without the FX. Please don’t hesitate to report any issues related to this.
  • Supersaw polyphony is only for NTS-1 firmware 1.2.0, with legato switched off. Setting polyphony to more than 1 in any other hardware configuration may result to unpredictable behaviour.
  • Supersaw polyphony is limited to use for chords or preemptive mode with last note priority, due to NTS-1 firmware 1.2.0 non legato NOTE OFF implementation (i.e. only last released note event is passed to the runtime).
  • With Supersaw, the sound may be degraded when using a high level of unison and/or a high level of polyphony with another FX, due to high CPU processing requirements. Use parameters wisely for your creative requirements.
  • Morpheus LFO rate control is in a non-linear scale, with more precise control in lower frequencies.
  • FM64 is very rough and only a limited number of features are supported. Currently most voices sound quite different to the originals.
  • Using more than 2 FX on NTS-1 with FM64 may produce sound degradation due to high CPU processing power requirement for 6-op FM calculations.
  • Using LFO with pitch or shape as a target may produce sound degradation on NTS-1 or multi-engine voice hang on -logues.
  • DX21/DX11 voices utilize only operators 6 to 3. Operators 1 and 2 levels are set to silent, but may be altered manually.
  • DX21/DX11 voices with algorithm 3 are initialized with different operator order to match DX7 algorithm 8.
  • Since there is no way to pass velocity to the oscillator, FMxx utilizes assignable controller for velocity control with 10-bit precision.
  • In case both Shape & Alt are bound to the same parameter, changing Alt value is ignored to avoid ambiguity for saving/restoring assignable parameter.
  • Anthologue patch select sets the VCO’s parameters according to the selected patch. Further manual parameter edit may available for all supported features, which can exceed the original synth capabilities (e.x. Cross Mod can be activated for Monologue program).
  • Any types and combinations of logue-series can be injected in Anthologue.
  • Maximum number of Anthologue programs depends on their types and combinations, and can vary from 25 to 76.
  • Due to logue-sdk parameter initialization implementation, FM64 and Anthologue oscillators may alter program parameters on selection. Change the program after oscillator selection to make sure all parameters are loaded from the program to their default values.
  • With Anthologue, only the NTS-1 can utilize system BPM with play mode 3. All other -logue synths work the same way for both sequence modes: internal oscillator BPM initialized from the program, and can only be changed with assignable controllers.
  • All 6 VCOs of Anthologue are identical, and sequentially chained with sync/ring mod/cross mod.
  • VCOs 4-6 of Anthologue are considered as a sub timbre. To utilize them, either select a Prologue program with sub timbre, or force sub timbre and set with Sub On AC, Main/Sub Balance AC and Sub parameter.
  • Split sub timbre type is available for all models since it utilizes 3 VCOs at a time.
  • 6 VCO is only stable on the NTS-1 with up to 2 FX.
  • Sub timbre is reset on program change. For Prologue programs - according to program settings. For other -logues programs - Sub On: switched off, Main/Sub balance: center, VCO 4-6 are reset.
  • On -logues, Prologue programs with timbre mode other than Split are loaded with sub timbre forcefully disabled, in order to avoid oscillator hang.
  • FM64 does not suport waveform select due to performance limitations.
  • Both FM64 and FM48 support manual selection from 40 algoritms introduced in Korg opsix, though several algorithm won’t produce any sound with FM48.
  • FMxx algoritm parameter value is numerically the offset to the selected voice algorithm (with saturation). Just to enable both the ability to keep the default voice algorithm on oscillator init and to save/recall altered algorith with the program.
  • Morpheus LFO rate control is in a non-linear scale, with more precise control in lower frequencies.
# Morpheus LFO X&Y modes
1 One shot
2 Key trigger
3 Random
4 Free run
5 One shot + Shape LFO
6 Key trigger + Shape LFO
7 Random + Shape LFO
8 Free run + Shape LFO
9 Off (LFO Y only, deactivates grid mode)
# Morpheus LFO X&Y waves
-75…-90 Wave Bank F
-60…-74 Wave Bank E
-47…-59 Wave Bank D
-33…-46 Wave Bank C
-17…-32 Wave Bank B
-1…-16 Wave Bank A
0 Sawtooth
1 Triangle
2 Square
3 Sine
4 White noise S&H
5…68 Custom waves
FMxx features FM48 FM64 FM65 FM66 FM67 FM68 FM69
Preset algorithm count 84 84 84 84 84 84 84
User algorithm count - - 16 - - - -
Operators count 4 6 6 6 6 6 6
Voice bank type DX21 / DX11 DX7 DX7 DX7 DX7 DX7 DX7
Voice bank count 4 5 4 4 2 2 5
Feedback count 1 1 2 1 2 1 1
Waveform count 8 1 1 8 126 1 1
Waveform customization +
Waveform pinch +
AMP LUT depth x witch, bits 11x16 11x16 11x16 11x16 11x16 13x16 11x16
Mixing quality, bits 32 32 16 32 32 32 32
Shape LFO target supported + + + + + + +
Pitch EG supported + + + + + + +
Split zones 3 3 3 3 3 3 3
Chromatic mode + + + + + +
Kit mode + + + + + + +
FMxx patch extensions DX7 voices DX21 / DX11 voices
Algorithm 1…128 upper bits at standard offset 0x6E 4 upper bits at offset 0x2F
Waveform 1…16 4 upper bits at offsets 0x0B, 0x1C, 0x2D, 0x3E, 0x4F, 0x60 1 higher bit at standard offsets 0x4A, 0x4C, 0x4E, 0x50
# FMxx
Custom params		 Range Description
0 Velocity 0…127 ⁽¹⁾ Velocity control (maximum is 100/127 when using param and 127/127 with fractional 10-bit resolution when assigned Shape/Alt)
1 Voice 1 -96…96 Set zone 1 voice (single or right), 0 activates kit mode, negative values will wrap to the end of the maximum allowed voices (Assigning to Shape/Alt allows to select up to 128 voices, not existing voices will be initialized with random values and can’t be saved/restored as a preset)
2 Voice 2 -96…96 Set zone 2 voice (left or middle), 0 activates kit mode, negative values will wrap to the end of the maximum allowed voices (Assigning to Shape/Alt allows to select up to 128 voices, not existing voices will be initialized with random values and can’t be saved/restored as a preset)
3 Voice 3 -96…96 Set zone 3 voice (left), may be out of bounds, 0 activates kit mode, negative values will wrap to the end of the maximum allowed voices (Assigning to Shape/Alt allows to select up to 128 voices, not existing voices will be initialized with random values and can’t be saved/restored as a preset)
4 Split Point1 1…101 ⁽²⁾ Split point between zone 1 and 2
5 Split Point2 1…101 ⁽²⁾ Split point between zone 2 and 3
6 Transpose 1 -99…100 ⁽²⁾ Transpose for zone 1
7 Transpose 2 -99…100 ⁽²⁾ Transpose for zone 2
8 Transpose 3 -99…100 ⁽²⁾ Transpose for zone 3
9 Voice Shift1 -99…100 Voice shift for zone 1
10 Voice Shift2 -99…100 Voice shift for zone 2
11 Voice Shift3 -99…100 Voice shift for zone 3
12 Shape Assign -99…99 Assign param to Shape, default is Velocity (sign controls bipolar parameter value directon, higer 7 bits of the Shape value used as param value)
13 Alt Assign -99…99 Assign param to Alt, default is FB scale (sign controls bipolar parameter value directon, higer 7 bits of the Alt value used as param value)
14 FB offset -99…100 ⁽³⁾ Feedback 1 offset
15 FB2 offset -99…100 ⁽³⁾ Feedback 2 offset
16 FB scale -99…100 ⁽⁴⁾ Feedback 1 multiplier
17 FB2 scale -99…100 ⁽⁴⁾ Feedback 2 multiplier
18 FB route 0…66 Feedback 1 route
19 FB2 route 0…66 Feedback 2 route
20 Alg select 0…100 Algorithm select
21 Alg offset -99…99 Algorithm offset
22 Lvl offs All -99…99 Level offset for all operators
23 Lvl offs Car -99…99 Level offset for carriers
24 Lvl offs Mod -99…99 Level offset for modulators
25 Lvl offs Op1 -99…99 Level offset for operator 1
26 Lvl offs Op2 -99…99 Level offset for operator 2
27 Lvl offs Op3 -99…99 Level offset for operator 3
28 Lvl offs Op4 -99…99 Level offset for operator 4
29 Lvl offs Op5 -99…99 Level offset for operator 5
30 Lvl offs Op6 -99…99 Level offset for operator 6
31 Lvl scal All -99…100 ⁽⁴⁾ Level multiplier for all operators
32 Lvl scal Car -99…100 ⁽⁴⁾ Level multiplier for carriers
33 Lvl scal Mod -99…100 ⁽⁴⁾ Level multiplier for modulators
34 Lvl scal Op1 -99…100 ⁽⁴⁾ Level multiplier for operator 1
35 Lvl scal Op2 -99…100 ⁽⁴⁾ Level multiplier for operator 2
36 Lvl scal Op3 -99…100 ⁽⁴⁾ Level multiplier for operator 3
37 Lvl scal Op4 -99…100 ⁽⁴⁾ Level multiplier for operator 4
38 Lvl scal Op5 -99…100 ⁽⁴⁾ Level multiplier for operator 5
39 Lvl scal Op6 -99…100 ⁽⁴⁾ Level multiplier for operator 6
40 KLS offs All -99…99 Keyboard level scaling offset for all operators
41 KLS offset Car -99…99 Keyboard level scaling offset for carriers
42 KLS offset Mod -99…99 Keyboard level scaling offset for modulators
43 KLS offset Op1 -99…99 Keyboard level scaling offset for operators 1
44 KLS offset Op2 -99…99 Keyboard level scaling offset for operators 2
45 KLS offset Op3 -99…99 Keyboard level scaling offset for operators 3
46 KLS offset Op4 -99…99 Keyboard level scaling offset for operators 4
47 KLS offset Op5 -99…99 Keyboard level scaling offset for operators 5
48 KLS offset Op6 -99…99 Keyboard level scaling offset for operators 6
49 KLS scal All -99…100 ⁽⁴⁾ Keyboard level scaling multiplier for all operators
50 KLS scal Car -99…100 ⁽⁴⁾ Keyboard level scaling multiplier carriers
51 KLS scal Mod -99…100 ⁽⁴⁾ Keyboard level scaling multiplier modulators
52 KLS scal Op1 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 1
53 KLS scal Op2 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 2
54 KLS scal Op3 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 3
55 KLS scal Op4 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 4
56 KLS scal Op5 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 5
57 KLS scal Op6 -99…100 ⁽⁴⁾ Keyboard level scaling multiplierfor operator 6
58 KVS offs All -99…100 ⁽³⁾ Key velocity sensitivity offset for all operators
59 KVS offs Car -99…100 ⁽³⁾ Key velocity sensitivity offset for carriers
60 KVS offs Mod -99…100 ⁽³⁾ Key velocity sensitivity offset for operators
61 KVS offs Op1 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 1
62 KVS offs Op2 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 2
63 KVS offs Op3 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 3
64 KVS offs Op4 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 4
65 KVS offs Op5 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 5
66 KVS offs Op6 -99…100 ⁽³⁾ Key velocity sensitivity offset operator 6
67 KVS scal All -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for all operators
68 KVS scal Car -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for carriers
69 KVS scal Mod -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for modulators
70 KVS scal Op1 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 1
71 KVS scal Op2 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 2
72 KVS scal Op3 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 3
73 KVS scal Op4 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 4
74 KVS scal Op5 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 5
75 KVS scal Op6 -99…100 ⁽⁴⁾ Key velocity sensitivity multiplier for operator 6
76 Rat offs All -99…99 EG rate offset for all operators
77 Rat offs Car -99…99 EG rate offset for carriers
78 Rat offs Mod -99…99 EG rate offset for modulators
79 Rat offs Op1 -99…99 EG rate offset for operator 1
80 Rat offs Op2 -99…99 EG rate offset for operator 2
81 Rat offs Op3 -99…99 EG rate offset for operator 3
82 Rat offs Op4 -99…99 EG rate offset for operator 4
83 Rat offs Op5 -99…99 EG rate offset for operator 5
84 Rat offs Op6 -99…99 EG rate offset for operator 6
85 Rat scal All -99…100 ⁽⁴⁾ EG rate multiplier for all operators
86 Rat scal Car -99…100 ⁽⁴⁾ EG rate multiplier for carriers
87 Rat scal Mod -99…100 ⁽⁴⁾ EG rate multiplier for modulators
88 Rat scal Op1 -99…100 ⁽⁴⁾ EG rate multiplier for operator 1
89 Rat scal Op2 -99…100 ⁽⁴⁾ EG rate multiplier for operator 2
90 Rat scal Op3 -99…100 ⁽⁴⁾ EG rate multiplier for operator 3
91 Rat scal Op4 -99…100 ⁽⁴⁾ EG rate multiplier for operator 4
92 Rat scal Op5 -99…100 ⁽⁴⁾ EG rate multiplier for operator 5
93 Rat scal Op6 -99…100 ⁽⁴⁾ EG rate multiplier for operator 6
94 KRS offs All -99…100 ⁽³⁾ Keyboard EG rate scaling offset for all operators
95 KRS offs Car -99…100 ⁽³⁾ Keyboard EG rate scaling offset for carriers
96 KRS offs Mod -99…100 ⁽³⁾ Keyboard EG rate scaling offset for modulators
97 KRS offs Op1 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 1
98 KRS offs Op2 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 2
99 KRS offs Op3 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 3
100 KRS offs Op4 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 4
101 KRS offs Op5 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 5
102 KRS offs Op6 -99…100 ⁽³⁾ Keyboard EG rate scaling offset for operator 6
103 KRS scal All -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for all operators
104 KRS scal Car -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for carriers
105 KRS scal Mod -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for modulators
106 KRS scal Op1 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 1
107 KRS scal Op2 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 2
108 KRS scal Op3 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 3
109 KRS scal Op4 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 4
110 KRS scal Op5 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 5
111 KRS scal Op6 -99…100 ⁽⁴⁾ Keyboard EG rate multiplier for operator 6
112 Det offs All -99…100 ⁽⁷⁾ Detune offset in cents for all operators
113 Det offs Car -99…100 ⁽⁷⁾ Detune offset in cents for carriers
114 Det offs Mod -99…100 ⁽⁷⁾ Detune offset in cents for modulators
115 Det offs Op1 -99…100 ⁽⁷⁾ Detune offset in cents for operator 1
116 Det offs Op2 -99…100 ⁽⁷⁾ Detune offset in cents for operator 2
117 Det offs Op3 -99…100 ⁽⁷⁾ Detune offset in cents for operator 3
118 Det offs Op4 -99…100 ⁽⁷⁾ Detune offset in cents for operator 4
119 Det offs Op5 -99…100 ⁽⁷⁾ Detune offset in cents for operator 5
120 Det offs Op6 -99…100 ⁽⁷⁾ Detune offset in cents for operator 6
121 Det scal All -99…100 ⁽⁴⁾ Detune multiplier for all operators
122 Det scal Car -99…100 ⁽⁴⁾ Detune multiplier for carriers
123 Det scal Mod -99…100 ⁽⁴⁾ Detune multiplier for modulators
124 Det scal Op1 -99…100 ⁽⁴⁾ Detune multiplier for operator 1
125 Det scal Op2 -99…100 ⁽⁴⁾ Detune multiplier for operator 2
126 Det scal Op3 -99…100 ⁽⁴⁾ Detune multiplier for operator 3
127 Det scal Op4 -99…100 ⁽⁴⁾ Detune multiplier for operator 4
128 Det scal Op5 -99…100 ⁽⁴⁾ Detune multiplier for operator 5
129 Det scal Op6 -99…100 ⁽⁴⁾ Detune multiplier for operator 6
130 Waveform C+M -77…77 ⁽⁸⁾ Waveform offset for carriers and modulators
131 Waveform 1+2 -77…77 ⁽⁸⁾ Waveform offset for operators 1 and 2
132 Waveform 3+4 -77…77 ⁽⁸⁾ Waveform offset for operators 3 and 4
133 Waveform 5+6 -77…77 ⁽⁸⁾ Waveform offset for operators 5 and 6
134 Waveform All -90…35 Waveform select for all operators
135 Waveform Car -90…35 Waveform select for carriers
136 Waveform Mod -90…35 Waveform select for modulators
137 Waveform Op1 -90…35 Waveform select for operator 1
138 Waveform Op2 -90…35 Waveform select for operator 2
139 Waveform Op3 -90…35 Waveform select for operator 3
140 Waveform Op4 -90…35 Waveform select for operator 4
141 Waveform Op5 -90…35 Waveform select for operator 5
142 Waveform Op6 -90…35 Waveform select for operator 6
143 WF pinch All 0…99 Waveform pinch for all operators
144 WF pinch Car 0…99 Waveform pinch for carriers
145 WF pinch Mod 0…99 Waveform pinch for modulatorss
146 WF pinch Op1 0…99 Waveform pinch for operator 1
147 WF pinch Op2 0…99 Waveform pinch for operator 2
148 WF pinch Op3 0…99 Waveform pinch for operator 3
149 WF pinch Op4 0…99 Waveform pinch for operator 4
150 WF pinch Op5 0…99 Waveform pinch for operator 5
151 WF pinch Op6 0…99 Waveform pinch for operator 6

⁽¹⁾ : 0…100 with the step of 1 when assigned to the oscillator parameter,
      0…127 with the step of 0.125 when assigned to the Shape or Alt (Shift + Shape)
⁽²⁾ : semitones / notes
⁽³⁾ : -6.93…+7 with the step of 0.07
⁽⁴⁾ : x0.01…x2 multiplier with the step of 0.01
⁽⁵⁾ : 0 - keep voice feedback route
      higher digit - feedback source operator, 1…6 (0→1, 7…9→6)
      lower digit - feedback destination operator, 1…6 (0→1, 7…9→6)
⁽⁶⁾ : 0 - keep voice algorithm
      1…85 - set algorithm explicitly
⁽⁷⁾ : cents
⁽⁸⁾ : higher digit - carriers and odd operators,
      lower digit - modulators and even operators

# Anthologue
Assignable controllers 1&2		 1x
(Main VCO 1)		 2x
(Main VCO 2)		 3x
(Main VCO 3)		 4x
(Sub VCO 1)		 5x
(Sub VCO 2)		 6x
(Sub VCO 3)		 7x
(Sub settings)
x0 N/A Wave Wave Wave Wave Wave Wave Sub On
x1 Slider
Mod.Wheel/E.Pedal
Joy Y+/Joy Y-		 Shape Shape Shape Shape Shape Shape Timbre Type
(Layer/XFade/Split)
x2 Keyboard Octave Octave Octave Octave Octave Octave Octave Main/Sub Balance
x3 Pitch Bend Pitch Pitch Pitch Pitch Pitch Pitch Main/Sub Position
x4 Program Level Level Level Level Level Level Level Split Point
x5 Bend Range + - Sync Sync Sync Sync Sync -
x6 Bend Range - - Ring Mod Ring Mod Ring Mod Ring Mod Ring Mod -
x7 BPM - Cross Mod Depth Cross Mod Depth Cross Mod Depth Cross Mod Depth Cross Mod Depth -
x8 - - - - - - - -
x9 - - - - - - - -
# Anthologue
Waves
1 Square
2 Triangle
3 Saw
4 Noise

manifest.json custom data extension

Oscillators with customizable data may contain additional metadata about customization. This data is ignored by synthesizers and Librarian apps, but is useful for external utilities to manage custom data. Here is an example:

{
    "header" : 
    {
        ...
        "params" : [
            ["Wave", 0, 63, ""]
          ],
        "custom_data" : [
            ["Wave file", 64, 256, 64, 0],
            ["custom_params", 16448, 2, 8, 256]
        ],
        "custom_params" : [
            ["Wave", 0, 63, ""],
            ["LFO", 0, 99, ""]
        ]
    }
}
  • custom_data (array) : custom data descriptors

Custom data descriptors are themselves arrays, and should contain 3-5 values:

  1. description (string) : brief custom data description, may contain format description (“custom_params” value is a special case with the customizable parameter numbers lookup table).
  2. offset (int) : custom data offset in oscillator binary file.
  3. size (int) : custom data element size.
  4. count (int) : optional maximum number of custom data elements (if more than one).
  5. param (int) : optional index of parameter that controls custom element selection (to reflect actual number of elements injected), for the “custom_params” case this is an offset for the customizable parameter numbers.
  6. param multiplier (int) : optional scaler for parameter value.
  • custom_params (array) : contains ordered list of all supported parameter descriptors

Credits

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