User`s guide

Chapter 21: Automation 291
touched. When they are touched, their ab-
solute positions are written until playback
is stopped.
Trim/Auto Write
In Trim/Auto Write mode, the Volume and
Send Level faders are disengaged from dis-
playing the existing automation data, so
you don’t have to chase them during play-
back. Faders are automatically positioned
at 0 dB, where no trimming occurs (they
start with a delta value of zero). From this
reference point you can then set the initial
delta values before initiating playback.
In this mode, as soon as playback begins,
delta values are applied to the existing au-
tomation data. Trimming continues until
playback stops.
When Trim/Auto Write mode is enabled,
non-trimmable controls (all controls other
than track Volume and Send Level) are not
in Write mode, but behave as if they are in
regular Auto Touch mode (no automation is
written unless a control is touched). This is
to prevent the controls from overwriting
all of their automation data on every pass
in Trim mode.
In Trim Mode, tracks do not automatically
change from Trim/Auto Write to Trim/Auto
Touch after an automation pass. Be sure to
switch out of Auto Write when you leave Trim
mode to avoid overwriting automation data.
Automation Preferences
Pro Tools gives you several options for con-
trolling the writing and playback of auto-
mation data.
To display Automation Preferences:
Choose Setups > Preferences, and click
Automation.
Moving Faders During Playback When this
option is selected, on-screen faders move if
automation has been written for them.
When this option is deselected, automa-
tion still operates, but on-screen faders do
not move. Turning this option off can help
speed up screen redraws and processing if
you are using a slower computer.
Mutes Follow Mix Groups When this option
is selected, muting a track/channel that be-
longs to a group mutes all other members
of the group. When this option is dese-
lected, tracks/channels must be muted on
an individual basis. When this option is se-
Automation Preferences dialog