Setup guide

Chapter 4: Configuring Your Pro Tools System 33
To minimize system memory allocation:
1 Choose Setup > Playback Engine.
2 Select Minimize System Memory Allocation.
3 Click OK.
4 Restart your computer.
Plug-in Streaming Buffer Size
(Structure Plug-in Only)
This setting appears in the Playback Engine dialog only if Structure, Structure LE, or
Structure Free is installed on your system. The Plug-in Streaming Buffer Size determines the
amount of memory DAE allocates for streaming playback from disk with the Structure plug-in.
This setting only affects playback if disk streaming is activated in Structure’s plug-in controls
(see the Structure Plug-in Guide for more information).
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 memory used for sample playback and frees up memory for other system tasks. How-
ever, 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 processing.
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.
Using a larger Plug-in Streaming Buffer Size leaves less system memory for other tasks. The de-
fault setting of 250 ms (Level 2) is recommended unless you are experiencing problems with
the audio quality of sample playback.