Apple Logic Pro 9 - Manual (Page 325)

Additional pop-up menus/fields Second menu First menu
Pop-up menu, in which you can choose between
the following options: AIFF, Apple Loops,
WAV (BWF), Apple Lossless, AAC, MP3, CAF,
Sound Designer I, Sound Designer II, Logic Project,
MIDI File, ReCycle, OMF File, AAF File, Open TL File,
XML File, Notator SL Song
Note that AIFF format searches do not include
Apple Loops.
is, is not Format
• Numerical input field
• Additional pop-up menu in which you can
choose between seconds, minutes, and hours
is, is not, is less than, is
greater than Length
Input field is, is not, after, before Modified Date
Input field contains, does not
contain, is, is not, starts
with, ends with Name
Pop-up menu, in which you can choose between
the following options: 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, 192 kHz is, is not, is less than, is
greater than Sample Rate
• Input field
• Additional pop-up menu, in which you can
choose between bytes, kilobytes, megabytes,
gigabytes, terabytes
is, is not, is less than, is
greater than Size
Pop-up menu, in which you can choose between
8 Bit, 16 Bit, and 24 Bit is, is not, is less than, is
greater than Bit Depth
Finding Apple Loops in the Loop Browser
The Loop Browser only displays Apple Loops format files. You can search for Apple Loops,
using keywords for instrument, genre, mood, and other descriptors. You can also browse
for Apple Loops in the Loop Browser.
In comparison with standard audio loops, Apple Loops have a significant advantage: they
can contain additional information that Logic Pro uses for a variety of purposes, including
automatic time and pitch shifting, indexing, and searching.
Two important data types that Apple Loops may include are metadata tags and transient
markers. Logic Pro uses metadata tags to help locate files when using the Search features
of the Loop Browser. Transient markers indicate where beats occur in the file. Logic Pro
uses this information, in conjunction with the metadata tags, to match the file’s tempo
and key to the project tempo and key, thus ensuring the best possible playback quality.
This functionality allows you to play back several Apple Loops simultaneously, and have
them sound good, even if they have different tempos and keys.
325 Chapter 11 Adding Prerecorded Media