Using the Tempo Interpreter Window

You can use the computer keyboard or incoming MIDI events to set the project tempo. Put another way, Logic Express will chase a manual synchronization signal (also known as human sync). This method of synchronization is fairly loose, in that if the manual sync impulses stop coming in, Logic Express continues at the last tempo it received.

You use the Tap Tempo command to generate tempo timing events, by literally tapping a computer or MIDI keyboard key.

To enter manual synchronization mode
Do one of the following:
  • Choose Manual in the Sync Mode pop-up menu of the File > Project Settings > Synchronization > General pane.

  • Select the “Auto enable external sync” checkbox (on by default) in the Project Settings > Synchronization > General pane.

If Logic Express “hears” a Tap Tempo command, it automatically follows this tempo.

The parameters that control how Logic Express responds to tap tempo commands can be found in the Tempo Interpreter window.

To open the Tempo Interpreter window
Do one of the following:
  • Choose Options > Tempo > Tempo Interpreter (or use the Open Tempo Interpreter key command).

  • Control-click the Sync button in the Transport bar (if visible), and choose Open Tempo Interpreter from the shortcut menu.

Note: Only the selected software instrument track, and all external MIDI tracks, can play when the Tempo Interpreter window is open.

The following parameters are in the Tempo Interpreter window.

Figure. Tempo Interpreter window.