User`s guide

Pro Tools Reference Guide256
7 Click OK. Pro Tools creates the fades for
the selected regions.
✽ You can edit the length of a fade after you
create it by resizing it with the Trimmer.
Stripping Silence From
Regions
The Strip Silence command examines a se-
lection and removes any areas of silence
(sections where the amplitude level falls
below a pre-defined level for a user-select-
able period of time). The Strip Silence com-
mand does this by dividing the selected re-
gion into smaller regions and removing the
silent regions.
You can use this feature to automatically
divide a track into regions, which can be
useful if you want to quantize your audio
to musical values or SMPTE locations. It
can also be useful if you want to get rid of
silent areas to prepare for compacting
audio (see “Compacting an Audio File” on
page 199).
What Happens to Stripped
Audio?
New regions, with the exception of the
“stripped out” silent regions, appear in the
Audio Regions List. The Strip Silence com-
mand is nondestructive and does not actu-
ally remove any audio data from the parent
audio file. You can use the Heal Separation
command to mend stripped regions.
Identifying Silence
You can identify the audio signal that qual-
ifies as “silence” by making a selection of
silence in a track and using the Identify Si-
lence command. The amplitude of the se-
lection is analyzed and stored as a setting
that is recalled whenever you use the Strip
Silence command in the session.
Strip Silence Setting
The Strip Silence dialog has six parameters:
On Threshold Audio above this dB level re-
mains in the selection and is not stripped
out.
Off Threshold Audio that falls below this dB
level is stripped out.
Combine If Closer Than If the end of one re-
gion and the start of the next region are
closer than this time value, they are com-
bined into the same region.
Discard If Shorter Than If a region’s length
is shorter than this time value it is dis-
carded.
Strip Silence dialog