DigiDesign Mbox 2 Mini Spécifications télécharger pdf (Page 30)

Mbox 2 Mini Getting Started Guide

To set the number of RTAS Processors:

1 Choose Setup > Playback Engine.

2 From the RTAS Processors pop-up menu, select the

number of available processors you want to allocate for

RTAS plug-in processing. The number of processors

available varies depending on how many processors are

available on your computer:

• Choose 1 Processor to limit RTAS processing to

one CPU in the system.

• Choose 2 Processors to enable load balancing

across two available processors.

• On systems running four or more processors,

choose the desired number of RTAS processors as

needed.

3 Click OK.

CPU Usage Limit

The CPU Usage Limit controls the percentage of CPU re-

sources allocated to Pro Tools host processing tasks.

Used in combination with the RTAS Processors setting,

the CPU Usage Limit setting lets you control the way

Pro Tools tasks are carried out by the system.

 Lower CPU Usage Limit settings limit the effect of

Pro Tools processing on other CPU-intensive tasks, such

as screen redraws, and are useful when you are experi-

encing slow system response, or when running other

applications at the same time as Pro Tools.

 Higher CPU Usage Limit settings allocate more pro-

cessing power to Pro Tools, and are useful for playing

back large sessions or using more real-time plug-ins.

The maximum available CPU Usage Limit depends on

the number of processors in your computer and on the

number of processors you specify for RTAS processing.

This value can range from 85 percent for single-proces-

sor computers to 99 percent for multi-processor com-

puters.

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)

The RTAS Engine option determines RTAS error report-

ing during playback and recording. This is especially

useful when working with instrument plug-ins.

You should only enable RTAS error suppression if you

are experiencing frequent RTAS errors that are inter-

rupting your creative workflow. When RTAS error sup-

pression is enabled, you can experience a degradation of

audio quality. However, this may be acceptable in order

to avoid interrupting playback and recording when

working with instrument plug-ins. Be sure to disable

RTAS error suppression when you need to ensure the

highest possible audio quality, such as for a final mix.

Increasing the CPU Usage Limit may slow

down screen response on slower computers.

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DigiDesign Mbox 2 Mini Spécifications Page 30

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