Playback and Recording : Record Setup : Setting the Session Meter and Tempo : Setting the Session Meter

Setting the Session Meter
When opening a new session in Pro Tools, the meter defaults to 4/4. If you intend to record with a click in a meter other than 4/4, make sure to set the meter accordingly.
If a session’s meter does not match the music you’re recording, the accented clicks will not line up with what you’re playing, and, as a result, the recorded material may not align with the bars and beats in the Edit window.
Meter events, which can occur anywhere within a Pro Tools session, appear in the Meter ruler. For more information on inserting and editing meter events, see Meter Events.
To set the meter for a session:
1 Double-click the Current Meter button in the Transport window.
 
2 Enter the Meter for the session and set the Location to 1|1|000 (to ensure that the inserted meter event replaces the default).
 
3 From the Click pop-up menu, select a note value for the beat. (For example, if you are in 6/8, select a dotted-quarter note).
4 Click OK to insert the new meter event.