User guide

Appendix a: Configuring CoreAudio (Mac OS X Only) 19
appendix a
Configuring CoreAudio (Mac OS X Only)
CoreAudio Driver Capabilities
The CoreAudio Driver is a multi-client, multi-
channel sound driver that lets CoreAudio–com-
patible applications record and play back
through Pro Tools hardware.
Full-duplex recording and playback of 24-bit au-
dio is supported at sample rates up to 96 kHz,
depending on your Pro Tools hardware and
CoreAudio client application.
The Pro Tools CoreAudio Driver provides up to
64 channels of I/O with Pro Tools|HD Native
systems.
Limitations of the CoreAudio Driver
The CoreAudio Driver has the following limita-
tions:
 The CoreAudio Driver cannot be used to pre-
view sound files from the Mac Finder. When a
sound file is located in the Mac OS X navigation
window, a QuickTime transport bar is displayed
next to it. The QuickTime transport bar lets you
audition the sound file. The sound will always
play back though the Mac’s built-in audio con-
troller (through the Mac speaker or headphone
jack). However, if you double-click a sound file,
the QuickTime application will launch, and can
use the CoreAudio Driver for playback.
 The CoreAudio Driver cannot be used for
playback of Mac System Sounds.
Installing the CoreAudio
Driver
The CoreAudio Driver is installed by default
when you install Pro Tools.
The CoreAudio Driver can also be installed as a
standalone driver on Mac systems that do not
have Pro Tools software installed. The installer
for the standalone CoreAudio Driver is available
on the Drivers Installer disc that came with your
Pro Tools Software package, or from our website
(www.avid.com).
Visit www.avid.com for the latest CoreAu-
dio drivers for Pro Tools hardware, as well
as current known issues.
If you uninstall Pro Tools, the CoreAudio
Driver is automatically uninstalled at that
time.