manual/include/track-automation.html
Shamus Hammons f04db3fe5d First pass at reorganizing/cleaning up the MIDI part.
A few other files were touched as well as they were referred to by files
in the MIDI part, which lead to other connected things being pulled in.
As this is only the first pass, there will be more necessary changes
coming in the near future.  Also, the lowest two levels of structure
were mistakenly removed from the build system; these have been added
back as they are necessary to keep the structure of the manual sane.
2020-05-18 18:07:17 -05:00

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<figure class=right>
<img src="/images/automation-menu1.png">
<figcaption class=center>The top level automation menu.</figcaption>
</figure>
<p>
A parameter on a given track can be automated by clicking on the track's <kbd
class=menu>A</kbd> button and selecting a parameter to control from the menu
that appears. Once a parameter has been selected, an automation lane for that
parameter will appear beneath the track. The lane thus shown will be empty;
from here an automation curve must be defined.
</p>
<p class=note>
If the height of the automation lane is too small to see all of its controls,
the height can be increased by <kbd class=mouse>Left</kbd> clicking on the
bottom border of the lane and dragging it.
</p>
<p>
There are three ways to define an automation curve:
</p>
<ul>
<li>Recording it using <kbd class=menu>Write</kbd> mode</li>
<li>Recording it using <kbd class=menu>Touch</kbd> mode</li>
<li>Drawing it using the mouse</li>
</ul>
<h3>Recording an Automation Curve Using Write Mode</h3>
<p>
To create an automation curve using <kbd class=menu>Write</kbd> mode, first
set the lane's mode selector to <kbd class=menu>Write</kbd>, then set the
playhead to the position where the automation curve should start, then set
the transport to play. While the playhead is moving, Ardour will continuously
record any changes made with the lane's fader. Even if no changes are made to
the fader, they will overwrite anything that existed in the lane where the
playhead is moving. When the desired automation curve has been recorded, stop
the transport.
</p>
<p class=note>
After the transport is stopped, the lane's mode selector will automatically
switch to <kbd class=menu>Touch</kbd> mode&mdash;it is generally a bad idea
to leave an automation lane in <kbd class=menu>Write</kbd> mode, as it is a
destructive operation that makes it easy to inadvertently overwrite existing
automation curves.
</p>
<h3>Recording an Automation Curve Using Touch Mode</h3>
<p>
Creating an automation curve using <kbd class=menu>Touch</kbd> mode is
similar to the method employed in creating one using <kbd
class=menu>Write</kbd> mode; the only difference is that changes are written
to the automation curve <em>only</em> when the lane's fader is moved&mdash;at
all other times, whatever was in the automation curve will remain as it was.
</p>
<p class=note>
<kbd class=menu>Touch</kbd> mode is useful when only small parts of the
automation curve need touching up versus <kbd class=menu>Write</kbd> mode,
which is usually used to create the automation curve in the first place.
</p>
<h3>Drawing an Automation Curve Using the Mouse</h3>
<p>
In <a href="@@toolbox"><dfn>Draw</dfn> mode</a>, <dfn>control points</dfn> can be entered in the
automation lane by <kbd class=mouse>left</kbd>-clicking in the lane at a
point where there is no existing control point.
</p>
<p>
Once added, a control point can be <kbd class=mouse>left</kbd>-clicked and
dragged to any desired location. Hovering over a control point will show its
current value. To remove a control point, <kbd class=mouse>left</kbd>-click
it and press <kbd>Delete</kbd>, or <kbd class=mod3n></kbd><kbd
class=mouse>right</kbd>-click on it.
</p>
<h2>Controlling the Track</h2>
<p>
Once an automation curve has been defined through any of the methods outlined
above, the track won't do anything with it until the lane that the curve was
defined in is set to <kbd class=menu>Play</kbd> mode. Then, during playback,
as the playhead moves through the automation curve, the lane's control will
move in accord with the curve.
</p>
<p class=note>
The lane's fader will <em>not</em> be responsive to manual input while it is
in <kbd class=menu>Play</kbd> mode.
</p>
<h3>Removing Automation</h3>
<figure class=right>
<img src="/images/automation-audio-r-click-menu.png">
<figcaption class=center>The automation lane context menu.</figcaption>
</figure>
<p>
Clearing the automation lane is done by <kbd
class="mouse">right</kbd>-clicking on the lane to be cleared, and selecting
<kbd class="menu">Clear</kbd> from the menu that appears.
</p>