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Mouse wheel control of a parameter
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=The Zynthian's Hardware User Interface=
 
=The Zynthian's Hardware User Interface=
[[File:zynthian_controllers.png|right]]
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[[File:zynthian_controllers.png|400px|right]]
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[[File:zynthian_ui_workflow_1.png|400px|thumb]]
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[[File:zynthian_ui_workflow_2.png|400px|thumb]]
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The Zynthian's Hardware UI is displayed on a touch display and controlled by 4 rotary-encoders with switches (push).
 
The Zynthian's Hardware UI is displayed on a touch display and controlled by 4 rotary-encoders with switches (push).
 
The encoders/switch knobs are used to navigate between the different screens/menus, select options and change the instrument parameters, acting as MIDI/OSC controllers.
 
The encoders/switch knobs are used to navigate between the different screens/menus, select options and change the instrument parameters, acting as MIDI/OSC controllers.
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=The Zynthian UI Workflow=
 
=The Zynthian UI Workflow=
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The next flowcharts show the different "screens" or "functions" and the way to reach each one using the 4 switches:
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The next flowcharts show the different "screens" or "functions" and the way to reach each one using the 4 switches.
 
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It could be a good idea to print these 2 flowcharts and keep it near of your Zynthian Box until you memorize the flow and the spirit of Zynthian UI got inside of you ;-)
[[File:zynthian_ui_workflow_1.png]]
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[[File:zynthian_ui_workflow_2.png]]
      
If you want to contribute improving these flowcharts, you can edit it using the Google Documents Tools:
 
If you want to contribute improving these flowcharts, you can edit it using the Google Documents Tools:
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  - [https://docs.google.com/drawings/d/1jmt3zrJjPkbqj3hpzCIwRgFIKxiX2UptebBA_GN8e5I/edit?usp=sharing Main sequence: zynthian_ui_workflow_1]
 
  - [https://docs.google.com/drawings/d/1jmt3zrJjPkbqj3hpzCIwRgFIKxiX2UptebBA_GN8e5I/edit?usp=sharing Main sequence: zynthian_ui_workflow_1]
 
  - [https://docs.google.com/drawings/d/1Um1HVCvvb4gZF_X-vcIN9cTxYIBRCtZ5oxniUdSTB3c/edit?usp=sharing Aux. Sequences: zynthian_ui_workflow_2]
 
  - [https://docs.google.com/drawings/d/1Um1HVCvvb4gZF_X-vcIN9cTxYIBRCtZ5oxniUdSTB3c/edit?usp=sharing Aux. Sequences: zynthian_ui_workflow_2]
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=The UI Menus=
 
=The UI Menus=
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Most of actions depends on context (the current menu screen), but there are some actions that are global and will work from any menu screen:
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* '''long-back''': go to the admin menu
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* '''long-select''': power off
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Snapshot actions are also global an will work from any point in the workflow. These actions are explained below.
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<br clear=all>
    
==Layer List==
 
==Layer List==
 
[[File:Zynthian_ui_new_layer.png|400px|right]]
 
[[File:Zynthian_ui_new_layer.png|400px|right]]
This is the first screen you see when you power on and no screenshots are stored yet.
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This is the first screen you see when you power on and no screenshots are stored yet. A layer is a synth engine preset assigned to one (or all) MIDI Channel. Choose New Layer to get started.
Choose New Layer to get started. A layer is a synth engine preset assigned to one or several MIDI channels. You can adjust the preset parameters from the instrument control screen.
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[[File:Zynthian_ui_layer_list.png|400px|right]]
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You can create up to 16 layers. Several layers can be assigned to the same MIDI Channel.
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<br clear=all>
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[[File:Zynthian_ui_layer_options.png|400px|right]]
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If you bold-press the select switch, the "Layer Options" menu will be opened for the selected layer. This menu allows to:
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* change the assigned MIDI Channel
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* transpose the layer up and down, by semitones.
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* route the layer's engine audio output to MOD-UI audio input, for audio processing
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* delete the layer
 
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[[File:Zynthian_ui_instrument_control_02.png|400px|right]]
 
[[File:Zynthian_ui_instrument_control_02.png|400px|right]]
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Turning each of the 4 knobs change the values of the synth parameters displayed in the squares at the sides of the screen. The list in the center of the screen allows you to choose the page of parameters. You can step one page by clicking select.
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[[File:Zynthian_ui_instrument_control_03.png|400px|right]]
 
[[File:Zynthian_ui_instrument_control_03.png|400px|right]]
Turning each of the 4 knobs change the values of the synth parameters displayed in the squares at the sides of the screen. The list in the center of the screen allows you to choose the page of parameters. You can step one page by clicking select. If the list is long, you can "bold click" the select switch for navigating the list.
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If the page list is long, you can "bold click" the select switch for navigating the list using the select knob.
 
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<br clear=all>
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Press the back switch to return to previous screen. If you press bold-back, then you will go 2 screens backwards.
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You can press the layer switch to step over the layer list. If bold-press, the layer list will be shown.
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Press the back switch to return to previous screen. If bold-back, then you will go 2 screens backwards.
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<br clear=all>
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==Load/Save Snapshot==
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[[File:Zynthian_ui_snapshot_load.png|400px|right]]
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[[File:Zynthian_ui_snapshot_save.png|400px|right]]
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Click the snapshot switch for entering the Load Snapshot screen. Another click and you will be in the Save Snapshot screen. You can also use bold-click for going directly to the Save Snapshot screen.
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Obviously, before loading any snapshot, you should save one. Snapshot are organized in banks, so if you don't have any bank, you should create one.
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Zynthian UI will use numbers for naming the banks and snapshots. Later, from the webconf tool you can rename the banks and snapshots to something more explicit.
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If you want to go up one level, from snapshots to banks, you should use the ".." entry in the list. Back button wont work here.
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===Default Snapshot===
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You can save a "Default Snapshot". This snapshot will be loaded automatically at startup. For deleting it, you should use the webconf tool.
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You can "emulate" the switches by tapping the controller widgets (squares in the 4 corners of a Controller screen). There are short, bold and long actions. Exactly the same workflow as with hardware knobs. When the "back" widget is not available, you can go back by tapping the top bar.
 
You can "emulate" the switches by tapping the controller widgets (squares in the 4 corners of a Controller screen). There are short, bold and long actions. Exactly the same workflow as with hardware knobs. When the "back" widget is not available, you can go back by tapping the top bar.
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You can change the values of the controllers by "sliding" over the widgets. This is the same as turning the knob.  
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You can change the values of the controllers by "sliding" over the widgets. This is the same as turning the knob. If you are using a mouse, the mouse wheel also modifies the parameter.  
    
When clicking (tapping/touching) the topbar, a "back" event is triggered. It's a quick & dirty fix and probably it will change in the future, but meanwhile it will enable you to fully control Zynthian using the touchscreen if you don't have knob hardware.
 
When clicking (tapping/touching) the topbar, a "back" event is triggered. It's a quick & dirty fix and probably it will change in the future, but meanwhile it will enable you to fully control Zynthian using the touchscreen if you don't have knob hardware.
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First, you need a working touch interface in your display. If not, you could use a mouse ...
 
First, you need a working touch interface in your display. If not, you could use a mouse ...
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[[File:Zynthian_ui_midi_learning.png|400px|right]]
 
'''Learning:'''
 
'''Learning:'''
 
  1. In the "Instrument Control" screen, navigate the parameter screen list until having the parameter you want to learn.
 
  1. In the "Instrument Control" screen, navigate the parameter screen list until having the parameter you want to learn.
 
  2. On the parameter/controller area, slide with your nail from '''left to right'''. A green "??" should appear in the bottom side.
 
  2. On the parameter/controller area, slide with your nail from '''left to right'''. A green "??" should appear in the bottom side.
 
  3. In your MIDI controller, move the desired knob/slider (or a CC-assigned pad).  The green "??" should be replaced by a tiny number, and the parameter should change when you move the knob/slider or push the pad. CC-assigned pads can be very useful for "boolean" parameters (i.e. on/off).   
 
  3. In your MIDI controller, move the desired knob/slider (or a CC-assigned pad).  The green "??" should be replaced by a tiny number, and the parameter should change when you move the knob/slider or push the pad. CC-assigned pads can be very useful for "boolean" parameters (i.e. on/off).   
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[[File:Zynthian_ui_midi_unlearning.png|400px|right]]
 
'''Unlearning:'''
 
'''Unlearning:'''
 
  1. In the "Instrument Control" screen, navigate the parameter screen list until having the parameter you want to unlearn.
 
  1. In the "Instrument Control" screen, navigate the parameter screen list until having the parameter you want to unlearn.
 
  2. On the parameter/controller area, slide with your nail from '''right to left'''. The tiny number, indicating the current CC bond, should disappear or change. If the parameter is an engine-specific controlled engine, the number will disappear. If the parameter is hardcoded MIDI-mapped parameter, then the number will change.
 
  2. On the parameter/controller area, slide with your nail from '''right to left'''. The tiny number, indicating the current CC bond, should disappear or change. If the parameter is an engine-specific controlled engine, the number will disappear. If the parameter is hardcoded MIDI-mapped parameter, then the number will change.
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