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Owner's Manual for FULL BUCKET models including: Tricent MK III, Polyphonic Synthesizer Ensemble, Tricent MK III Polyphonic Synthesizer Ensemble
VST is a trademark of Steinberg Media Technologies GmbH Windows is a registered trademark of Microsoft Corporation The Audio Units logo is a trademark of Apple.. View
Tricent mk III Manual Page 6 The Sections Although the Trident (and the Tricent plug-in) is not a very complicated machine I’d like to take some time explaining the various sections of it and its peculiarities. Synthesizer Section The Synthesizer section is pretty basic: The signals of two VCOs (Voltage Controlled Oscillators) are mixed and processed by a standard 24dB lowpass filter (VCF ...
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DocumentDocumentTricent mk III
Polyphonic Synthesizer Ensemble Version 1.1
© 2020-2022 by Björn Arlt http://www.fullbucket.de/music
VST is a trademark of Steinberg Media Technologies GmbH Windows is a registered trademark of Microsoft Corporation The Audio Units logo is a trademark of Apple Computer, Inc.
Tricent mk III Manual
Table of Contents
Introduction....................................................3 The KORG Trident mk I & mk II.........................3 The Tricent mk III...........................................4 Acknowledgments............................................4
Architecture....................................................5 The Sections...................................................6
Synthesizer Section.........................................6 Brass Section..................................................7 Strings Section................................................7 Flanger Effect..................................................8 Delay Vibrato and Wheels Section......................8 Key Assign Section..........................................8 Tweaks and Output Section...............................9 Control Operation............................................9 Control Section...............................................9 MIDI Learn And The Config File "tricent.ini".......10 Options Menu................................................10 Parameters...................................................11 Key Assign....................................................11 Synthesizer...................................................11 Brass...........................................................12 Strings.........................................................12 Delay Vibrato and Wheels...............................13 Flanger.........................................................13 Output.........................................................13 Tweaks.........................................................14 Frequently Asked Questions.............................15
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Tricent mk III Manual
Page 3
Introduction
The Tricent mk III is a software synthesizer plug-in for Microsoft Windows (VST2/VST3) and Apple macOS (VST2/VST3/AU) simulating the classic KORG® Trident mk II from 1982. It is written in native C++ code for high performance and low CPU consumption. The main features are:
Synthesizer, Brass, and Strings sections 8 or 64 voice polyphony Flanger effect Individual stereo outputs for the three sections Tweaks... Double precision audio processing MTS-ESP (https://oddsound.com/) dynamic micro-tuning support All parameters can be controlled by MIDI controllers Plug-in supports Windows and macOS (32 bit and 64 bit)
Tricent mk III is based on the new iPlug2 framework maintained by Oli Larkin and the iPlug2 team. Big thanks, guys!!! Without your work it would not have been possible to create a resizable Tricent mk III user interface.
To resize the plug-in you just grab the yellow triangle at the bottom right of the Tricent mk III window and drag it. You can save the current window size using the menu entry "Save Window Size" in the Options Menu.
If you have trouble with the standard version of Tricent mk III, please grab the (sound-wise identical) "N" version of the plug-in which is based on the original iPlug framework.
The KORG Trident mk I & mk II
In 1980 and after the PS-3X00 polyphonic synthesizer series, KORG released the Trident: An eight-voice programmable polyphonic synthesizer in the fashion of other successful machines such as Sequential Circuits' Prophet and Oberheim's OB-X(a). But while the latter offered a pretty sophisticated architecture with Sync and Cross-Mod options, the Trident synthesizer engine was reduced to almost the absolute minimum. Instead, KORG added two additional (non-programmable) Brass and Strings sections which lifted the Trident into the league of classic multi keyboards as known from Farfisa, Crumar and the like. Obviously the Trident's subtitle "Performing Keyboard" was chosen to designate the target audience: Live performing artists with the need for a large variety of sounds in a single box.
Two years later came the Trident mk II with some improvements (e.g. two dedicated envelope generators for VCF and VCA, program recall from memory etc.) and a light face lift (most notably the black knob caps of the MS/PS series were replaced by the modern ones as known from the Polysix and the Mono/Poly). But the Trident never reached the same status as its "brothers" (errr, well...) Jupiter 8, Prophet 5, OB-Xa and the like. Its sound was said to be "thin" and "cheesy" which is (at least in my opinion) not true. Furthermore its hardware was believed to be rather unreliable: Well, that's a problem with almost all analog gear (ask the owners of a Polymoog) and one of the good reasons why industry switched over to digital technology.
Tricent mk III Manual
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The Tricent mk III
Many folks asked me to create a VST/AU recreation of the Trident but I was reluctant. Anyway, you know how things go, I checked the Trident's schematics, well, not bad, nice ideas, wow, these KORG engineers were cool, let's check some videos, okay, done. And since the so-called "Tricent" would become a "mk III" I added the following features which hopefully are nice to have:
Stereo: All parts can be panned individually. Additional outputs: Each part can be routed to its individual output. 8 or 64 voice polyphony: Maybe eight voices are a bit tight these days... (De-)Tuning capabilities for the Brass and Strings sections. Stereo Ensemble: Makes the Strings section shine. Stereo Flanger: Funky. Not to forget: 64 presets and MIDI CC support!
Acknowledgments
And at this point I would like to say Thank you! to all the people who share their information about the Trident mk I & II via the Internet, especially and again Ben Ward for his excellent supporting material at http://www.korganalogue.net/.
And another THANK YOU! to the KVR Audio community and to the KORG engineers.
No, I am not affiliated with KORG in what relation ever except that I always find myself entangled with their instruments.
Tricent mk III Manual
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Architecture
Because hardware is expensive, the Synthesizer, Brass and Strings sections of the Trident were based on the same set of oscillators (one per voice, each one generating a 16', 8' and 4' Sawtooth simultaneously). These signals are fed into the three sections and processed accordingly (in the Synthesizer section, the signals drive VCO 1).
SSiiggnnaall GGeenneerraattoorrss
16´ 8´
4´
Synthesizer
VVCCOO 22
VVCCOO 11
EEGG
VVCCFF
EEGG
VVCCAA
Brass EG
VCF VCA
Strings EEGG
VVCCAA
Vibrato
Ensemble
Bowing
Mixer
Flanger
Output
Note that while the Synthesizer section is truly polyphonic (one VCO 1, VCO 2, VCF and VCA per voice), the Brass section is paraphonic: There is only one VCF and one VCA for all voices.
Tricent mk III Manual
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The Sections
Although the Trident (and the Tricent plug-in) is not a very complicated machine I'd like to take some time explaining the various sections of it and its peculiarities.
Synthesizer Section
The Synthesizer section is pretty basic: The signals of two VCOs (Voltage Controlled Oscillators) are mixed and processed by a standard 24dB lowpass filter (VCF; Voltage Controlled Filter) following a standard VCA (Voltage Controlled Amplifier). Of course the term "voltage controlled" has to be taken with a grain of salt there is no "control voltage" inside the software plug-in.
VCO 1 offers three waveforms: Sawtooth, Pulse Width and Pulse Width Modulation, where the latter is modulated by a dedicated LFO (Low Frequency Oscillator). VCO 2 only produces a Sawtooth wave and can optionally be turned off.
The VCF has its own envelope generator (EG) and allows for self-oscillation. Keyboard tracking is available in five steps (off, 25%, 50%, 100%, 150%).
Besides an Attenuator control, the VCA features the mystical Auto Damp function (which is known from the Mono/Poly, too). Since the Trident does not offer a Unison mode, playing solo lines on the polyphonic synthesizer may result in unwanted "tails" of previously played notes. With Auto Damp switched on, these "tails" are cut. Try it for yourself, this feature is hard to explain in words...
The volume of the whole section is set by the Volume knob. Furthermore, the section can be completely turned on or off using the Output switch.
Tricent mk III Manual
Brass Section
The Brass section is even more simplistic: Here, the 16' and/or 8' Sawtooth signals are run through a single VCF and a single VCA controlled by a single envelope generator (EG). This means that the whole section is paraphonic.
However, there are some cool extras: You can control whether the EG should be triggered for each key ("Multi[ple]") or only for the first one played, but you can also select how many keys have to be pressed (2, 4, 6 or 8) before the EG starts. This function is activated by the Select button.
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Strings Section
Some folks say that the Strings are the heart of the Trident. The 16', 8' and 4' Sawtooth signals can be activated individually and are sent through a (polyphonic) VCA section with a simple Attach/Release envelope. After that the Strings signal is processed by an equalizer followed by a delayed Vibrato and an Ensemble effect.
Note that the Strings Vibrato is realized by a bucket brigade device (as known from vintage stomp boxes) and not by modulating the signal generators themselves! Furthermore note that the Vibrato and Ensemble effects are turned off if the respective button is lit.
An interesting addition is the Bowing effect: The intend here obviously is to simulate the characteristics of bowing the strings. Hmm, I tend to call it the "Something" effect.
Finally, the keyboard balance of the built-in Filter effect controls the "sharpness" or "dullness" of the string sound with respect to the played note.
Tricent mk III Manual
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Flanger Effect
In the early 80s it was already pretty common for synthesizers to be equipped with a Chorus effect. However, the KORG designers decided to add a Flanger to the Trident (unique selling point?). This characteristic effect is capable of self-oscillation and can be activated individually for the three sections. Many artists were heavily using it as an additional source for experimental sound shaping.
Delay Vibrato and Wheels Section
There is a global delayed Vibrato effect which directly modulates the signal generators (as opposed to the Strings Vibrato) and thus affects all three sections (Synthesizer, Brass and Strings) at the same time. The vibrato delay can be switched on or off but its delay time is fixed (well almost; see section Tweaks and Output Section). The speed of the Vibrato effect is controlled just below in the Wheels section.
The original Trident featured a joystick instead of the well-known Pitchbend and Modulation wheels: The horizontal axis was used for pitch bending while moving the joystick "up" controlled the intensity of the Vibrato effect and moving the joystick down introduced a "trill effect" basically a vibrato with a rectangular waveform.
Since today's MIDI controllers typically are equipped with wheels instead of joysticks I decided to "map" the joystick functionality here. Thus you can select whether the Modulation wheel controls a standard Vibrato or the "trill" effect. Furthermore you can set the range for the Pitchbend wheel.
Key Assign Section
The Trident/Tricent features two modes for assigning the eight voices. In mode 1 the engine tries to assign any new note to a new voice so that the other voices are not cut off (if possible). Mode 2 is suitable for solo play because here the engine will assign the next note to the same voice as before if only one note is played at a time. This prevents potential "mudding" of the sound for long release times (also see Auto Damp in the Synthesizer section).
It was not a good idea to switch the mode while playing the Trident this caused a weird pitch drop of the played voices to the lowest note. On the Tricent plug-in it will cause all notes to be stopped. You may also note a slight itching at the back of your head (just kidding).
Besides a global tuning knob the three sections can be split across the keyboard. While the Trident had a fixed split point between the second and third octave of the keyboard, the Tricent plug-in provides a variable split point.
Tricent mk III Manual
Tweaks and Output Section
Here come the things that make the "mk III"-part of the Tricent plug-in the tweaks. First of all you can change from the original eight to sixty four voices of polyphony. This really makes a big difference when playing pads, arpeggios etc.
Second, you can switch the Flanger and/or the Strings Ensemble effects to stereo mode (the original Trident was an "all mono machine"). Space the final frontier.
Next, you can detune the Brass and the Strings sections individually. Remembering what was said in section Architecture, this means that both Brass and Strings will have their own additional set of signal generators, and this exactly what happens when you turn one of the Detune knobs (LED is on). Be aware that this will increase the CPU load of your computer!
There are some more parameters that are not accessible from the front plate (you can adjust them using the plugin parameter control of your DAW): Ensemble speed and modulation amount as well as Delayed Vibrato delay time.
Finally, the Tricent offers a dedicated Output section where you can adjust the stereo panorama and the response to velocity for each of the three sections (note that the original Trident did not react to velocity). The EGto-VCF amount of the Synthesizer and the Brass sections can be controlled by velocity, too. And there is a Total Volume knob.
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Control Operation
Control Section
To select one of the 64 patches just click on the program number or the previous/next arrow buttons, and edit its name by clicking in the text field.
Tricent mk III Manual
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MIDI Learn And The Config File "tricent.ini"
Every parameter of the Tricent can be controlled by one MIDI controller. If you want to change the assignment of MIDI controller (CC; MIDI Control Change) to Tricent parameter the MIDI Learn function comes in quite handy: Just click the MIDI button at the Control section (button turns yellow) and wiggle both the MIDI controller and the parameter you want to assign (you can abort LEARN by clicking the button again). If you want to unlearn the assignment, right-click the MIDI Learn button (the label now reads "UNLEARN"). Now wiggle the MIDI controller or the parameter that you want to unlearn. To save the controller assignments use "Save Configuration" in the Options menu (see next section); they are stored in the tricent.ini configuration file. The exact location of this file depends on your operating system and will be displayed when you click on "Reload" or "Save Configuration".
Options Menu
When clicking on the Menu button, a context menu opens with the following options:
Copy Program
Copy current program to internal clipboard
Paste Program
Paste internal clipboard to current program
Init Program
Initialize the current program
Load Program
Load a program file containing a patch to the Tricent's current program
Save Program
Save the Tricent's current program to a program file
Load Bank
Load a bank file containing 64 patches into the Tricent
Save Bank
Save the Tricent's 64 patches to a bank file
Select Startup Bank Select the bank file that should always be loaded when the Tricent is started
Load Startup Bank
Load the Startup bank file; can also be used to check what the current Startup bank is
Unselect Startup Bank
Unselect the current Startup bank
Show Voice Schedule A leftover from development which I forgot to remove
MIDI Thru
Set globally if MIDI data sent to the Tricent should be sent through to its MIDI output (stored in configuration file)
Ignore Program Change
Set globally if MIDI Program Change data sent to the Tricent should be ignored (stored in configuration file)
Reload Configuration Reload the Tricent's configuration file
Save Configuration Save the Tricent's configuration file
Check Online for Update
When connected to the Internet, this function will check if a newer version of the Tricent is available at fullbucket.de
Visit fullbucket.de Open fullbucket.de in your standard browser
Tricent mk III Manual
Parameters
Key Assign
parameter Trident Mode Key Assign Total Tune Range Synthe Range Brass Range Strings Split Key
Synthesizer
parameter VCO 1 Octave VCO 1 PW/PWM VCO 1 PWM Speed VCO 1 Wave VCO 2 Octave VCO 2 Detune VCF Cutoff VCF Resonance VCF KBF Track VCF EG Intensity VCF Attack VCF Decay VCF Sustain VCF Release VCA Attack VCA Decay VCA Sustain VCA Release VCA Attenuator VCA Auto Damp
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ID value / notes 0 Off / On [64 / 8 voices polyphony] 1 Mode 1 or 2 2 ± 100 cent 3 Lower, Both, Upper 4 Lower, Both, Upper 5 Lower, Both, Upper 6 C-2 G8
ID value / notes 7 16', 8', 4' 8 0 100% 9 0.001 25Hz 10 Sawtooth, Pulse Width, PW Modulation 11 Off, 16', 8', 4' 12 ± 100 cent 13 0 100% 14 0 100% 15 0 150% 16 ± 100% 17 0 100% 18 0 100% 19 0 100% 20 0 100% 21 0 100% 22 0 100% 23 0 100% 24 0 100% 25 ± 10 dB 26 Off / On
Tricent mk III Manual
Brass
parameter Brass Cutoff Brass Resonance Brass Silent Notes Brass EG Intensity Brass Attack Brass Decay Brass Sustain Brass Release Brass 16' Brass 8' Brass Multi Trigger Brass Trigger Select
ID value / notes 27 0 100% 28 0 100% 29 2, 4, 6, 8 30 0 100% 31 0 100% 32 0 100% 33 0 100% 34 0 100% 35 Off / On 36 Off / On 37 Off / On 38 Off / On
Strings
parameter Strings Attack Strings Release Strings EQ High Strings EQ Low Strings Bowing Level Strings Bowing Tone Strings Vibrato Delay Strings Vibrato Speed Strings Vibrato Intensity Strings KBD Balance Strings 16' Strings 8' Strings 4' Strings Bowing Strings Vibrato Strings Ensemble
ID value / notes 39 0 100% 40 0 100% 41 ± 12 dB 42 ± 12 dB 43 0 100% 44 0 100% 45 0 100% 46 0.001 25Hz 47 0 100% 48 0 100% 49 Off / On 50 Off / On 51 Off / On 52 Off / On 53 On / Off 54 On / Off
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Tricent mk III Manual
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Delay Vibrato and Wheels
parameter Vib. Intensity Vib. Delay Vib. Delay Time Wheel Vib. Intensity Wheel Vib. Speed Wheel Mode Pitch Bend
ID value / notes 55 0 100% 56 Off / On 57 0 100% (hidden parameter!) 58 0 100% 59 0.001 25Hz 60 Vibrato / Trill 61 ± 1200 cent
Flanger
parameter Flanger Speed Flanger Feedback Flanger Intensity Flanger Manual Flanger Synthe Flanger Brass Flanger Strings
ID value / notes 62 0.001 25Hz 63 0 100% 64 0 100% 65 0 100% 66 Off / On 67 Off / On 68 Off / On
Output
parameter Total Volume Volume Synthe Volume Brass Volume Strings Output Synthe Output Brass Output Strings Pan Synthe Pan Brass Pan Strings Velocity Synthe Velocity Brass Velocity Strings Velocity Synthe VCF Velocity Brass VCF
ID value / notes 69 - 0 dB 70 - 0 dB 71 - 0 dB 72 - 0 dB 73 Off / On 74 Off / On 75 Off / On 76 ± 100% 77 ± 100% 78 ± 100% 79 0 100% 80 0 100% 81 0 100% 82 0 100% 83 0 100%
Tricent mk III Manual
Tweaks
parameter Stereo Flanger Stereo Ensemble Detune Brass Detune Strings Ens. LFO1 Speed Ens. LFO2 Speed Ens.1 Amount Ens.2 Amount Ens.3 Amount
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ID value / notes 84 Off / On 85 Off / On 86 ± 700 cent 87 ± 700 cent 88 0.001 25Hz (hidden parameter!) 89 0.001 25Hz (hidden parameter!) 90 0 100% (hidden parameter!) 91 0 100% (hidden parameter!) 92 0 100% (hidden parameter!)
Tricent mk III Manual
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Frequently Asked Questions
How do I install the Tricent (Windows VST2 32 bit version)?
Just copy the files tricent.dll from the ZIP archive you have downloaded to your system's or favorite DAW's VST2 plug-in folder. Your DAW should automatically register the Tricent VST2 plug-in the next time you start it.
How do I install the Tricent (Windows VST2 64 bit version)?
Just copy the file tricent64.dll from the ZIP archive you have downloaded to your system's or favorite DAW's VST2 plug-in folder. Your DAW should automatically register the Tricent VST2 plug-in the next time you start it. Note: You may have to remove any existing (32 bit) tricent.dll from your VST2 plug-in folder or else your DAW may screw the versions up...
How do I install the Tricent (Windows VST3 64 bit version)?
Just copy the files tricent.vst3 from the ZIP archive you have downloaded to your system's or favorite DAW's VST3 plug-in folder. Your DAW should automatically register the Tricent VST3 plug-in the next time you start it.
How do I install the Tricent (Mac VST2/VST3/AU 64 bit)?
Locate the downloaded PKG package file tricent_1_1_0_mac.pkg in Finder (!) and do a right- or control-click on it. In the context menu, click on "Open". You will be asked if you really want to install the package because it comes from an "unidentified
developer" (me ). Click "OK" and follow the installation instructions.
What is the plug-in ID of the Tricent? The ID is T r i 3 .
How do I know if a new version of the Tricent is available?
When connected to the Internet, open the File menu (see section Options Menu) by clicking the disk icon and select the entry "Check Online for Updates". If a new version of the Tricent is available on fullbucket.de the respective information will be shown in a message box.
How can I increase the CPU performance?
Switch from 64 to 8 voices polyphony. Undo detuning of the Brass and Strings sections. Turn off (orange buttons!) any section that is not needed.