Playback and Recording : Punch Recording Modes : Guidelines for Punch Recording : Preferences for Punch Recording

Preferences for Punch Recording
(Crossfade, Transport, and Record Settings)
Pro Tools provides several punch-related preference settings that let you specify how crossfades, monitoring and transport functions are to perform during and after recording passes. These settings optimize Pro Tools fades, transport and track behavior for different types of tasks, including dubbing, mixing, and overdubbing.
Crossfades while Punch Recording
Pro Tools places crossfades at each in and out point, for smooth transitions between punch clips. You can specify the crossfade length for QuickPunch and TrackPunch modes (DestructivePunch uses a fixed crossfade length which cannot be changed). After punch recording is completed, all crossfades can be edited in the same manner as standard crossfades (see Fades and Crossfades).
QuickPunch/TrackPunch Crossfade Length
Pro Tools can automatically write a crossfade for each punch point when using QuickPunch and TrackPunch. The length for these crossfades is set with the QuickPunch/TrackPunch Crossfade Length option on the Editing Preferences page.
To set the QuickPunch/TrackPunch Crossfade Length:
1 Choose Setup > Preferences and click the Editing tab.
2 Enter a new value (in msec) for the QuickPunch/TrackPunch CrossFade Length. A good general-purpose crossfade length for punches is 10 milliseconds. If you set the preference to zero, Pro Tools will not create any crossfades at the punch-in/out points.
3 Click OK.
If a value other than zero is specified for the QuickPunch/TrackPunch Crossfade Length, Pro Tools writes a pre-crossfade at the punch-in point (the fade occurs up to but not into the punched clip boundary), and a post-crossfade at punch-out (after the punched clip).
Regardless of the current QuickPunch/TrackPunch Crossfade Length setting, Pro Tools always executes a 4 millisecond “monitor only” crossfade (which is not written to disk) to avoid distracting pops or clicks that might occur as you enter and exit record mode.
DestructivePunch and Crossfades
DestructivePunch uses a fixed 10-millisecond linear crossfade at each in and out point. After punch recording is completed, crossfades can be edited in the same manner as standard crossfades (see Fades and Crossfades).
Transport and Record Settings
Transport and Record preferences for punch recording appear on the Operation Preferences page. These preferences specify how track and Transport record status respond during, between, and after punches and passes.
 
Transport RecordLock
This setting lets the Transport Record be configured to either emulate a digital dubber, or to maintain legacy behavior for the Transport master Record.
*   
When not enabled, the Transport Record disarms when Pro Tools is manually stopped or stops due to a loss of timecode. This replicates legacy Pro Tools recording behavior.
*   
When enabled, the Transport Record remains armed when playback or recording stops. This saves having to re-arm the Transport between takes, emulating digital dubber behavior.
*
Punching out of record by pressing Record on the Transport takes the transport out of record enable.
Destructive Recording and Transport RecordLock
As a precaution against accidentally recording over previous material, the Transport RecordLock option is automatically disabled and grayed out when Destructive record mode is enabled.
Audio Track RecordLock
This setting lets Pro Tools tracks either emulate a digital dubber, or maintain legacy behavior for track record status.
*   
When the Audio Track RecordLock option is enabled, the record-enabled audio tracks remain armed when playback or recording stops.
*   
When the Audio Track RecordLock option is not enabled, record-enabled audio tracks are taken out of record enable when Pro Tools is stopped. This prevents tracks from remaining armed from pass to pass, emulating track record behavior of a digital dubber.