User`s guide
APOGEE ELECTRONICS
6
Symphony 32 PCI card – User’s Guide
APOGEE ELECTRONICS
7
Symphony 32 PCI card – User’s Guide
Installing the Symphony Core Audio Driver
Symphony Core Audio drivers must be installed on the computer to interface Symphony PCI hardware to Core
Audio compatible software. This driver may be found on the Apogee Software CD included with the Symphony
PCI card. More driver information may be found at Apogee’s website here:
http://support.apogeedigital.com/index.php/symphony-32/downloads
To install the driver:
1. Insert the CD into your Mac’s optical disc drive.
2. Double click on the Symphony Software Installer icon.
3. Follow the instructions provided by the installer program.
4. Re-start your Mac after installation is complete.
Important note: Sleep settings
Due to the processor intensive nature of computer-based digital audio systems, it’s required that OSX’s
“Sleep” functions be disabled.
1. Under the Apple menu, open the System Preferences window and click on the Energy Saver icon. In the
Energy Saver window, set both computer and display sleep sliders to “Never” and uncheck the hard disk
sleep box.
2. On a G5 : Under the “Options” tab, set Processor Performance to “Highest”.
• Open Logic Pro 8 and choose Logic Pro > Preferences > Audio.
• In the Preferences window, select the Devices tab, then the CoreAudio tab.
• Select Symphony 32 in the Device drop down menu.
• Set I/O Buffer Size to 64. If you encounter clicks and pops, choose a higher buffer setting.
• If not checked, check the Enabled box.
• Click on Apply Changes.
iTunes
1. From your Mac’s Menu bar Apple menu, open the System Preferences window, and click on the Sound
icon; in the Sound Preferences window, click on the Output tab and select Apogee Symphony.
2. Open iTunes, select an audio le, and initiate playback; signal is routed to outputs 1-2 of the rst con-
nected Apogee interface.
ConguringLogicPro8Word Clock Connections - Multiple Symphony PCI Cards
Regardless of the number of Symphony PCI cards to which hardware interfaces are connected, each
hardware interface must receive a synchronous word clock. For example in the system shown below, the rst two
interfaces are connected to one Symphony PCI card and the second two interfaces are connected to a second
PCI card, but all four interfaces are connected to the same clock source.