91 lines
3.0 KiB
HTML
91 lines
3.0 KiB
HTML
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<p>
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The plugin editor can be shown by double-clicking on the plugin within the
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<a href="@@processor-box">processor box</a>.
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A new window will appear showing the editor/GUI for the plugin.
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</p>
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<figure class="right">
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<img class="mini" style="width:400px;" src="/images/exemple-plugin.png" alt="A generic plugin Editor (A-Eq)">
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<figcaption>
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A generic plugin Editor (A-Eq)
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<ol>
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<li>Parameters</li>
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<li>Description</li>
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<li>Analysis graph</li>
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</ol>
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</figcaption>
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</figure>
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<h2>Generic Plugin Editor</h2>
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<p>
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If a plugin does not have its own GUI, Ardour will construct a
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<dfn>generic plugin editor</dfn> from a small set of common control
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elements. Ardour will do this even for plugins that have their
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own, if <kbd class="menu">Edit > Preferences >
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GUI > Use Plugins' own interface instead of Ardour's</kbd> is disabled.
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</p>
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<p>
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The generic UI can be temporarily switched to by <kbd class="mouse">right</kbd> clicking on
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a processor and selecting <kbd class="menu">Edit with generic controls</kbd>.
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This is necessary in order to access the <a href="@@automation">plugin
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automation controls</a>.
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</p>
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<p>
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In the generic UI, any controller can be reset to its default state by
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<kbd class=mod3n></kbd><kbd class=mouse>Left</kbd>-clicking on it.
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</p>
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<h2>Analysis Graph</h2>
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<p>
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At the bottom of the generic plugin editor, clicking the arrow displays the
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<dfn>Analysis Graph</dfn>.
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</p>
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<p>
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This graph displays:
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</p>
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<ul>
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<li>the <span style="background-color:black; color:white;">transfer function</span> in white,</li>
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<li>the <span style="background-color:black; color:red;">phase response</span> in red (optional),</li>
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<li>the <span style="background-color:black; color:green;">post effect spectrum</span> in green.</li>
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</ul>
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<p>
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The <dfn>transfer function</dfn> plots the output amplitude of the plugin (considered
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as a "black box") against its input amplitude, along the audio spectrum.
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</p>
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<p>
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The <dfn>phase response</dfn>, that can be switched on or off using the
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<kbd class="option">Show phase</kbd> checkbox, plots the phase of the
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plugins output against its input phase, along the audio spectrum. The scale is
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shown in <span style="background-color:black; color:yellow;">yellow</span> on
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the right.
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</p>
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<p>
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The green spectrum plots the <dfn>output signal spectrum</dfn>, after the plugin
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(for tracks that have a signal on).
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</p>
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<p>
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The <kbd class="menu">dB scale</kbd> selector in the bottom left allows to
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change the vertical scale of the graphs.
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</p>
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<h2>MIDI instruments specificities</h2>
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<figure>
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<img src="/images/instrument_plugins-keyboard.png" alt="The MIDI keyboard in instruments plugins">
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<figcaption>
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The MIDI keyboard in instruments plugins
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</figcaption>
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</figure>
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<p>
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The generic UI provides, for all MIDI instruments plugins, a keyboard, that can
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be used either with the mouse, or by using a QWERTY keyboard as a piano. Both the
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channel and the velocity can be set above the keyboard.
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</p>
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