KnobShift doesn't just control plugins, it also lets you record your moves as automation in Logic Pro. This works through the KnobShift Bridge and Logic's Touch mode.
Before you start
- The track has a KnobShift Bridge (or KnobShift Bridge FX) with a plugin loaded. See Set up KnobShift in Logic Pro.
- The iPad is connected and shows that plugin's controls (USB, Wi-Fi).
How do you record automation?
- In Logic, set the track's automation mode to Touch.
- Start playback.
- Move one or more controls on the iPad. Logic records your moves.
- Stop playback.
When you play that section back, the controls on the iPad move along.
Tip: Instead of Touch you can also use Latch. In both modes Logic records your moves from the iPad.
Why does this work through the bridge?
The KnobShift Bridge presents Logic with a fixed set of parameters. Each of them mirrors a parameter of the plugin you loaded into the bridge. That's why automation and Touch mode work in Logic, even though the plugin running inside the bridge is only known after the bridge is loaded.
When you put your finger on a control, KnobShift reports it to the bridge, so Logic knows you're “touching” that control. When you lift your finger, the touch ends. Touch mode therefore behaves just like a control you move with the mouse in Logic.
Why isn't Logic recording anything?
- Automation is set to Read: in Read mode, existing automation overrides your moves. Set the mode to Touch or Latch, or delete the parameter's existing automation.
- The plugin is bypassed: if the power icon at the top of the KnobShift app is gray, the plugin is bypassed. Tap it to turn the plugin on.
- The control doesn't move in the plugin: check in Logic's plugin window whether the control moves along. If not, close and reopen the bridge window and tap Try Again in the app. If that doesn't help, restart KnobShift Companion on the Mac.
Note: If values jump or stutter, use USB rather than Wi-Fi. When dragging, moving your finger sideways intentionally gives finer control, so keep your finger moving in a straight line.
More precision thanks to MIDI 2.0
KnobShift sends every parameter at 32 bits instead of the 128 steps of classic MIDI controllers, so slow filter sweeps reach the plugin without audible steps. What is MIDI 2.0? explains what's behind it.
If you have questions about automation or found a bug, post in the forum.
Frequently asked questions
Why doesn't Logic record my control moves from the iPad?
Usually the track's automation is set to Read, so existing automation overrides your moves. Set the mode to Touch or Latch.
Do the controls on the iPad move during playback?
Yes. When Logic plays back automation, the controls on the iPad follow the recorded values.
How does Logic know when I'm touching a control on the iPad?
KnobShift reports touching and releasing a control to the KnobShift Bridge, so Touch mode works just like with a control in Logic itself.