Specifications

Chapter 5: Configuring Your Pro Tools System
25
The optimum Plug-in Streaming Buffer Size for most
sessions is 250 ms (Level 2).
 Plug-in Streaming Buffer Size settings lower than
250 msec (Level 2) reduce the amount of system mem-
ory used for sample playback and frees up memory for
other system tasks. However, audio quality of sample
playback may decrease.
 Plug-in Streaming Buffer Size settings higher than
250 msec (Level 2) improve the audio quality of sample
playback, but they also decrease the amount of memory
available for other system tasks, such as RTAS process-
ing.
To change the Plug-in Streaming Buffer Size:
1 Choose Setup > Playback Engine.
2 From the Plug-in Streaming Buffer Size pop-up menu,
select a buffer size.
3 Click OK.
Optimizing the Plug-in Streaming Buffer Size
(Structure Plug-in Only)
This option appears in the Playback Engine dialog only
if the Structure sampler instrument plug-in is installed
on your system. This option is useful when you are
playing samples from the same drive that contains au-
dio for the current session. When this option is selected,
Pro Tools automatically optimizes the size of the Plug-in
Streaming Buffer to facilitate disk access from both
Pro Tools and Structure. The Plug-in Streaming Buffer
Size pop-up menu is unavailable when this option is se-
lected.
To set Pro Tools to optimize the Plug-in Streaming Buffer
Size:
1 Choose Setup > Playback Engine.
2 Select the “Optimize for Streaming Content” option.
3 Click OK.
Pro Tools Hardware Settings
In the Hardware Settings dialog, Pro Tools lets you set
the default sample rate and clock source for your sys-
tem, as well as a range of controls specific to each type
of audio interface.
Using a larger Plug-in Streaming Buffer Size
leaves less system memory for other tasks. The
default setting of 250 ms (Level 2) is recom-
mended unless you are experiencing problems
with the audio quality of sample playback.