AMS Neve Libra Live II Series User Manual page 143

Issue 4
When AFT is turned on, the optos will control whether the fader is opened or closed. At the
bottom right of the screen an 'AFT Invert' check-box determines whether an active opto input
drives the fader up or down.
Three other columns are used to set the fade-up and fade-down rates and the minimum level to
which a fader will go to when closed. To set the minimum value to CUT, enter a value of –103, or
type CUT on the keyboard. If no values are entered the minimum value defaults to CUT and the
fade rates to 1mS.
The AFT facility can be turned on using the AFT Enable check-box. The "Quick Prefs"
checkboxes are also accessible via the standard Encore User Prefs utility.
Configuring the fader strip button
Any one of the three user-assignable channel buttons can be designated as an AFT control
button using the Assignable Buttons tab in the User Prefs utility. Assigning a button allows AFT to
be turned on and off from the channel strip on individual channels. It is not necessary to assign a
button in order to be able to use AFT. If AFT control is not assigned to a button, any path with an
AFT opto assigned to it will be assumed to be under AFT control when the AFT system is turned
on via the User Preference.
A new check-box on the Assignable Buttons page allows mono and stereo channels to be
configured differently.
Using AFT
Faders that are in AFT mode cannot be part of a ganging structure and cannot be included in
the scope of a snapshot recall. This is to avoid conflicts arising if 2 automation systems
attempt to control the same fader. Faders in AFT are indicated by one of the 2 triangular trim
indicators next to the fader being illuminated.
Once configured, the AFT Control button allows channels to be switched in and out of AFT control
individually. When the control is first switched on the switch LED will be green, indicating that the
fader is in the closed (minimum value) position. The bottom of the two triangular trim indicators
next to the fader will illuminate to indicate the DSP fade is at the bottom. The physical fader
however will remain in the "open" position. This allows the operator to move the fader to the level
it should be at when the external tally opens the fader. Touching the fader will confirm the DSP
fade value, i.e. the pre-programmed minimum value.
When a tally is applied to any of the opto isolators that have been mapped to a channel's AFT
function, the channel's fader will open. The upper trim indicator next to the fader will flash during
the transition to indicate the direction of travel. The fader knob will remain stationary, but the
audio will be faded up at the pre-programmed rate till it reaches the level that the fader knob
indicates, when the Control AFT switch will go red and the upper trim indicator will illuminate. The
fader can be moved at any time to adjust the open fader level, but the audio level will not follow
the fader if it is moved below the minimum value.
When the tally is removed, the audio will fade to the minimum value at the pre-programmed rate,
though the physical fader remains stationary.
Switching AFT Control off will restore the fader to normal manual control and the DSP fade will
ramp up/down to match the physical fader position.
Libra Live Series II User Manual
142 Using Encore