Specifications

Chapter 3: Mackie HUI Control Surface 65
To add additional automation, follow the above
procedure using Touch mode. This will allow
you to add new automation only when you ac-
tually move a control. It will not erase previous
automation data unless you move the control at
that point in the session.
Function Keys
Eight Function Key switches (labeled
F1–F8/ESC) are available. Currently available as-
signments include:
F1 clears clipped meters and last held peaks si-
multaneously.
F2 activates or deactivates the Relay (GPO) out-
puts on the rear panel of HUI. (See the Mackie
HUI User’s Guide included with your HUI for in-
formation on how to use the Relay outputs.) Re-
lay #1 is activated by pressing the transport
PLAY switch. Relay #2 is activated by pressing
the transport RECORD switch.
F3 enables or disables the audible click indica-
tion for the HUI V-POT encoders.”
F4 displays the version number of the current
HUI MIDI personality file installed on the host
computer.
F5 toggles the DSP Edit/Assign V-POTs between
fixed and velocity sensitive response.
F8/ESC serves as an Escape (ESC) switch to can-
cel out of any assignment mode or on-screen
modal dialog.
Known Issues with HUI and
Pro Tools
HUI Remains Active During Waveform
Computation
Even though HUI may appear to be locked out
while Pro Tools computes waveform overviews,
it will still function and continue to control
Pro Tools.
MIDI Timepiece
Because of the density of MDI data transmitted
between Pro Tools and HUI, intermittent com-
munication problems may be encountered with
a MIDI Timepiece. This MIDI interface is not
recommended for use with Pro Tools and a HUI.
MIDI Timepiece II
When power cycling a HUI that is connected to
a MIDI Timepiece II, the MIDI Timepiece II may
get into a confused state (all MIDI outputs be-
come lit). To return to normal operation, power
cycle the MIDI Timepiece II.
F6
F7
F1
F2
F3 F4 F5
F8/ES
C
The HUI’s F8/ESC switch cannot cancel a
Bounce operation. To cancel a Bounce oper-
ation, press Escape on your computer’s al-
pha keyboard.