User`s guide
APOGEE ELECTRONICS
10
Symphony64 PCI card – User’s Guide
Congure Symphony 64 with Apple Logic Pro 8 (Figure A)
• Open Logic Pro 8 and choose Logic Pro > Preferences > Audio.
• In the Preferences window, select the Devices tab, then the CoreAudio tab.
• Select Symphony 64 in the Device drop down menu.
• Set I/O Buffer Size to 32 for the lowest latency, or to 64 for more DSP resources in Logic
(inputs, outputs, plug-ins). Please see below for a few hints on this setting.
• If not checked, check the Enabled box.
• Click on Apply Changes.
The I/O Buffer Size, found in the Logic Pro preference window described above, and the Performance Tuning
setting, found in the Apogee Maestro software, are the two settings that determine the audio latency through
your Symphony system. When using Symphony 64 and a Mac Pro, verify that Performance Tuning is set to
High Performance. The I/O Buffer Size should be set as low as possible without causing digital audio
artifacts such as clicks and pops.
Software Labels (Figure B) It’s possible to customize the input and output labels in Maestro software,
and transmit these labels to your digital audio workstation software. Even if you don’t enter your own labels,
it’s helpful to use Maestro’s default input and output labels. For example, to use Maestro’s input and output
labels in the I/O section of Logic channel strips:
• Iin Logic choose Options > Audio > I/O Labels
• Option-click the rst label in the Provided by Driver column
Other Settings on Your Mac
Sleep Mode - We recommend setting the OS X System Preference Energy Saver so that neither the computer
nor the display are put to Sleep.
7
8