DigiDesign Pro Tools, Справочное руководство

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Chapter 12: Importing and Exporting Session Data 213
Use Copy to move audio from an unsupported
or removable drive to an audio drive, or to ar-
chive audio files for a session to a specific loca-
tion.
Convert
Audio files that are not of the same bit depth or
sample rate as a session, or audio files that are of
an incompatible file type (such as SD II files in
Windows) must be converted to be used with
the session. When an audio file is converted, a
new file with the correct bit depth, file type, and
sample rate is created and placed in a folder you
choose.
The quality of sample rate conversion used by
Pro Tools is determined by the preference for
Conversion Quality. For details, see “Sample
Rate Conversion Quality” on page 213.
Importing Stereo Files
When using the Import Audio command, inter-
leaved stereo files are automatically imported to
stereo tracks.
Split stereo (dual mono) audio files can be auto-
matically imported to stereo tracks. Split stereo
audio files must have the channel identifiers
“.L” and “.R” in their names (for example,
file-
name .L and filename .R), and the files must be the
same length. In Windows, or in Mac/PC Com-
patibility mode, these files will have a 3-letter
file extension appended after the “.L” or “.R”
channel identifier.
Pro Tools also lets you import multichannel in-
terleaved files of any supported file type.
Automatic Fades for Imported REX and
ACID Files
Pro Tools can automatically apply real-time
crossfades to the regions or “slices” in imported
REX and ACID format files.
To apply real-time crossfades to REX and ACID
files:
1
Choose Setup > Preferences and click Editing.
2
Select the “Automatically Create Fades For Im-
ported REX and ACID files” option.
3
Click REX/ACID and choose the shapes for the
crossfades, and click OK.
4
Click OK to close the Preferences dialog.
Sample Rate Conversion
Quality
The Sample Rate Conversion Quality preference
determines the quality of sample rate conver-
sion used when converting and importing audio
into a session. There are five possible settings,
ranging from
Low (lowest quality) to Tweak Head
(highest quality). The higher the quality, and
the larger the conversion, the longer it will take.
To set the sample rate conversion quality:
1
Choose Setup > Preferences and click the
Processing tab.
Depending on your edits or tempo changes
after importing REX or ACID files, the
fades may get deleted and you will have to
recreate them yourself.