User's Manual
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B. HUI
The HUI protocol allows the SL MkIII to act like a Mackie HUI device and interact with DAWs that provide HUI support
(for example, Steinberg, Cubase and Pro Tools).
i. HUI Heartbeat
After hitting InControl, the SL MkIII automatically switches to HUI View as soon as it detects a Heartbeat message
(sent by a DAW). If the SL MkIII does not receive a heartbeat message for over three seconds, it automatically switch-
es back to InControl mode.
ii. Channel Control
• Volume
You can change channel Volume with the eight faders toward the right side of the SL MkIII. The LED above each fader
indicates its value.
• Pan
You can change a channel’s Pan position using the rotary knobs. Below each knob, the current Pan position is dis-
played.
• Mute/Solo/Arm
The right soft-buttons can be used to control Mute, Solo and Arm functions on individual channels. By default, you will
only see the Mute and Solo buttons; use the page up button to access the Arm buttons. Depending on the DAW you
are using, button LEDs may behave differently. For example, in Pro Tools the Arm button will ash when on.
• Send Control
Press the Options button to access the encoder assignment menu, where you can set the encoders to control send
levels. Use the page up/down buttons next to the screens to access send groups A through E. As of publication only
Pro Tools displays the send names below the displayed rotaries.
• Transport Control
The Transport’s buttons can control the equivalent functions in each DAW. While mostly similar, the function of each
button depends on the DAW. Generally, the functionality is (from left to right) as follows: Rewind, Fast-Forward, Stop,
Play, Loop on/off, Arm/Record.
• Track Left and Right, Banking Left and Right
The Track Left and Right buttons move the currently controlled bank (8 channels) one channel to the left or right. Hold
Shift and press these same buttons to move a full bank left or right.
• Keyboard Shortcuts
Hold Shift to access several keyboard shortcuts on the left soft-buttons. Again, the way these button LEDs function
depends on the DAW.
• Press Button 01 (furthest left) to Undo. In Pro Tools this button will ash after undoing, indicating the
possibility to Redo.
• Press Button 2/3 to toggle Pre-Roll and Post-Roll.
• Press Button 8 (far right) to save your DAW session. In Pro-tools, for example, the Save button will begin
to ash after clicking. This is ProTools’ way of asking for conrmation. Press the button once more to save.
iii. DAW Setup
• Cubase
To set the SL MkIII up as a HUI control surface in Cubase, navigate to ‘Studio’ > ‘Studio Setup’ > ‘MIDI Port Setup’. Be
careful to set your ports as shown below, the ‘Novation SL MkIII SL MkIII InControl’ port MUST NOT have “in ‘all MIDI
ins’” enabled: