Setup guide

Mbox 2 Mini Setup Guide
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To change the CPU Usage Limit:
1 Choose Setup > Playback Engine.
2 From the CPU Usage Limit pop-up menu, select the percentage of CPU processing you want
to allocate to Pro Tools.
3 Click OK.
RTAS Engine (RTAS Error Suppression)
There are two RTAS Engine options:
Ignore Errors During Playback/Record When enabled, Pro Tools continues to play and record
even if the RTAS processing requirements exceed the selected CPU Usage Limit. This can result
in pops and clicks in the audio, but does not stop the transport.
Minimize Additional I/O Latency (Mac Only) When enabled, any additional latency due to sup-
pressing RTAS errors during playback and record is minimized to 128 samples. Suppressing
RTAS errors requires at least 128 samples of additional buffering on some systems. If this op-
tion is disabled, the buffer is half the H/W Buffer Size, or at least 128 samples (whichever is
greater). If you are on an older, slower computer, you may want to disable this option to avoid
adverse performance.
This option is only available if the Ignore Errors During Playback/Record option is enabled.
DAE Playback Buffer Size
The DAE Playback Buffer Size determines the amount of memory DAE allocates for disk buff-
ers. The buffer size is shown in milliseconds, which indicates the amount of audio buffered
when the system reads from disk.
The optimum DAE Playback Buffer Size for most disk operations is 1500 msec (Level 2).
 DAE Playback Buffer Size settings lower than 1500 msec (Level 2) may improve playback
and recording initiation speed. However, a lower setting may make it difficult to play or record
tracks reliably with sessions containing a large number of tracks or a high density of edits, or
with systems that have slower or heavily fragmented hard drives.