User`s guide

Pro Tools Reference Guide114
A good general-purpose crossfade length
for punches is 4 milliseconds. If you set the
preference to zero, Pro Tools will not create
any crossfades at the punch-in/out points.
3 Click Done.
If a value other than zero is specified for the
QuickPunch Crossfade Length, Quick-
Punch writes a pre-crossfade at the punch-
in point (which occurs up to but not into
the punched region boundary), and a post-
crossfade at the punch-out point (which
occurs after the punched region).
Even if the QuickPunch Crossfade Length
is set to zero, Pro Tools always executes a
4 millisecond “monitor only” crossfade
(which is not written to disk) to avoid dis-
tracting pops or clicks that might occur as
you enter and exit record mode.
☞ QuickPunch crossfades can later be edited
in the same manner as standard crossfades.
For details, see “Using Crossfades” on
page 245.
QuickPunch Guidelines for
TDM Systems
When using QuickPunch on TDM systems,
two voices are required for each record-en-
abled track. For instance, a Pro Tools 24
system with 32 voices can simultaneously
record on up to 16 tracks with Quick-
Punch.
If the required number of voices for the
record-enabled tracks is not available when
switching to QuickPunch mode, you’ll be
prompted to free up the necessary voices.
To free up voices on tracks that are not
record-enabled:
• Set the voice assignment for the track to
Off.
– or –
• With Mute Frees Voices enabled in the
Operations menu, mute the track.
▲ The Mute Frees Voices option can cause
Mute lag time and slower monitor switching
when punching. For details, see “Mute Frees
Voice and Mute Lag Time” on page 60.
▲ When using a 64 voice system, such as the
Pro Tools 24 MIX system, voices are allocated
to either of two DSP engines (1–32 and
33–64). Therefore, if you want to use Quick-
Punch on 32 tracks, these tracks must be
evenly distributed between the two DSPs (for
instance, tracks 1–16 assigned to voices
1–16 and tracks 17–32 assigned to voices
33–48).
As necessary, voices in use by other tracks,
which are not record-enabled, may be sto-
len while recording with QuickPunch.