Apple Logic Pro 7 Handbuch
3
Song Settings
The Song Settings contain an additional Audio pane, which offers the following two
options:
options:
Playback Pre-Roll
When this option is enabled, all start commands will force Logic Pro 7 to start playback
a little earlier (shifted to the left). The exact pre-roll value is dependent on the current
delay compensation value for plug-ins. This option ensures that transients which fall
exactly on the start position are played back correctly. If this option is disabled,
transients that fall precisely on the start position can be missed, or appear to be faded
in.
a little earlier (shifted to the left). The exact pre-roll value is dependent on the current
delay compensation value for plug-ins. This option ensures that transients which fall
exactly on the start position are played back correctly. If this option is disabled,
transients that fall precisely on the start position can be missed, or appear to be faded
in.
Pan Law
The Pan Law value determines the amount of volume reduction to mono signals that
are panned to the center position. If set to 0 dB, mono signals will seem louder when
panned to the center position, in comparison with extreme left or right pan positions. If
set to either
are panned to the center position. If set to 0 dB, mono signals will seem louder when
panned to the center position, in comparison with extreme left or right pan positions. If
set to either
–3 dB
or
–3 dB compensated
, mono signals will seem equal in loudness,
regardless of their pan position:
•
–3 dB:
A full scale mono signal (0 dBfs) will have a level of –3 dB when panned to the
center position.
•
–3 dB compensated:
A full scale mono signal (0 dBfs) will have a level of 0 dB when
panned to the center position (or +3 dB when panned to extreme left or right
positions).
positions).
Songs created in older Logic versions always use the 0 dB option. Please note that
switching the Pan Law value to –3 dB will change the mix of such songs!
switching the Pan Law value to –3 dB will change the mix of such songs!
AU Manager
Logic Pro 7 uses Apple’s AU Validation Tool to ensure that only Audio Unit plug-ins
which pass the test are used in Logic.
which pass the test are used in Logic.
The scan process takes place automatically when you launch Logic Pro 7. You can see
the results of the validation scan for all Audio Units plug-ins via the Logic Application
menu: Preferences > Start Logic AU Manager.
the results of the validation scan for all Audio Units plug-ins via the Logic Application
menu: Preferences > Start Logic AU Manager.
Note:
Logic Pro 7 automatically quits before the Logic AU Manager is launched. Logic
will automatically restart after you quit the Logic AU Manager.
The Logic AU Manager allows you to disable Audio Units plug-ins that you don’t want
to use in Logic, even if they pass the test. Simply uncheck the corresponding checkbox
in the Use column to disable any plug-in. You can store your choice of Audio Units
plug-ins by clicking
to use in Logic, even if they pass the test. Simply uncheck the corresponding checkbox
in the Use column to disable any plug-in. You can store your choice of Audio Units
plug-ins by clicking
OK
.