User guide

Tracktion 4 Reference Manual
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This makes it easier to edit automation of parameters with xed states. The great news is that you
can add this functionality to any VST plug-in by creating a *.vstxml le for it. This is beyond the scope of
this manual. See the VST 2.4 SDK (Software Developer’s Kit), which is available for download at http://
www.steinberg.net.
You can select a group of nodes at once, by either CTRL + clicking (CMD + click for Mac users) on
them, one node at a time. You can also select a contiguous section of the curve by clicking on the rst
node you wish to select, then SHIFT + clicking the nal node you wish to select. The two nodes, and all
intermediate nodes will be selected.
When two or mode nodes are selected, you can copy them by using the CTRL + C (CMD + C for
Mac users) keyboard shortcut. Once a section of an automation curve has been copied, it can be
pasted into this or another automation curve by placing the play-head cursor at the desired automation
point, and using the CTRL + V (CMD + V for Mac users) keyboard shortcut. In addition, you can delete
the the selected nodes by pressing the DELETE key, or clicking the delete button on the properties
panel.
In addition to selecting one or more nodes, you can select an entire automation curve by clicking on
a section of the curve other than a node point. When an automation curve is selected, the properties
(Fig. 7.3.10) for the curve provide a few more automation copying and editing tools.
Displace curve: This control allows you to raise or lower the values of your nodes. This will simply add
or subtract a xed value from all node points.
Scale curve: This control scales the values of the node. A scale of 0.5 for example would literally halve
the value of all nodes.
Only displace/scale the marked region: When this option is selected, only nodes between the in and
out markers will be affected by the displace/scale options above.
Simplify: This option reduces the number of automation points on the curve. You can choose to simpli-
fy the entire curve or just the marked region using light, medium, or strong simplication. The stronger
the simplication, the more nodes are removed.
Delete points from curve: This option provides you with options to remove nodes from the automation
curve. There are three options:
•
Delete all points from the curve: When this option is selected, all nodes will be deleted.
•
Delete points in the marked region: When this option is selected, any nodes between the in
and out markers will be removed.
•
Delete points in the marked region and close the gap: When this option is selected, any
nodes between the in and out markers will be removed. In addition, the points located after the
out marker will be moved towards in the in marker by a distance equal to the marked range.
Copy marked region to clipboard: The points between the in and out markers will be copied to the
clipboard.
Figure 7.3.10