Specifications

Chapter 3: Macintosh Configuration 21
DAE Playback Buffer Size
The DAE Playback Buffer Size determines the
amount of memory DAE uses to manage disk
buffers, which affects system performance.
◆ Lower DAE Playback Buffer Size settings can
improve playback and recording initiation
speed. However, a lower setting can make it dif-
ficult for slower hard drives to play or record
tracks reliably.
◆ Higher DAE Playback Buffer Size settings can
allow for a higher density of edits in a session.
However, a higher setting can cause a time lag to
occur before playback or recording begins. It can
also cause a time lag to occur when you are ed-
iting during playback.
To change the DAE Playback Buffer Size:
1 Choose Setups > Playback Engine.
2 From the DAE Playback Buffer pop-up menu,
select a buffer size.
3 Click OK.
Pro Tools Hardware Settings and
M-Audio Control Panel
The Hardware Setup dialog in Pro Tools (Setups
> Hardware Setup) displays the name of your M-
Audio peripheral. The dialog also displays a mes-
sage, which tells you that various hardware
functions can be changed in the M-Audio Con-
trol Panel.
Using the M-Audio Control Panel, you can
change settings in the following areas:
• Mixer Settings
• Output Settings
• Hardware Settings (including sample rate,
hardware buffer size, and sync source).
To change M-Audio Control Panel settings:
1 If Pro Tools M-Powered is open, close it.
2 In the Applications folder, locate and launch
the M-Audio Control Panel as follows:
• For FireWire interfaces, launch M-Audio
FW.
• For PCI interfaces, launch M-Audio Delta
Control Panel.
3 To change settings in the M-Audio Control
Panel, refer to the documentation that came
with your M-Audio interface.
4 When finished, close the M-Audio Control
Panel.
Sync Source (Pro Tools Clock Source)
If your M-Audio interface has a digital I/O (such
as a S/PDIF I/O), use the M-Audio Control Panel
to select the Sync Source for the system.
You can change the sample rate when creat-
ing a new Pro Tools session by selecting a
different sample rate in the New Session di-
alog. (Refer to
the Pro Tools Reference Guide
for details.)
Pro Tools M-Powered does not support the
M-Audio Control Panel low latency moni-
tor feature.
With Pro Tools M-Powered, Sync Source
cannot be set in the Pro Tools Session Setup
window.