If you would like to hear the metronome—which makes a regular click—while recording, you can set this up in the Metronome project settings window.
Choose File > Project Settings > Metronome (or use the Open Metronome Project Settings key command).
Click the Settings button in the Arrange toolbar, and choose Metronome from the pop-up menu.
Control-click (or right-click) the Metronome button in the Transport bar, and choose Metronome Settings from the pop-up menu.
The Metronome Project Settings window combines all settings for:
You can use these click sources in isolation or in combination with one another.
Define when you want to hear the metronome click—on every bar, beat, or division—by selecting the corresponding Bar, Beat, and Division checkboxes.
Turn on the “Click while recording” option. Also set the “Only during count-in” and “Click while playing” options to meet your needs. It is suggested that you leave the “Polyphonic Clicks” option enabled, as this allows for overlapping clicks.
Click the Recording button at the top of the Project Settings window, to open the Recording pane.
Select the Count-in radio button.
Open the pop-up menu and choose the desired count-in period that will precede recording:
For details about the Metronome project settings, see Metronome Settings.