Metric Halo 2882 operating guide - Manual (Page 86)

Mobile I/O User’s Guide
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The Configure Hardware Device dialog provides a user interface to config-
ure the clock source, sample rate, and buffer size for the Mobile I/O ASIO
driver. All of these settings are saved with your session and therefore are the
appropriate mechanism for controlling the driver settings.
If you select an external clock source from the Clock Source popup menu,
the external source will determine the sample rate and you will not be able
to control the rate from the computer.
Clicking the Control Panel button will bring up the Mobile I/O Driver prefer-
ences dialog. In general, you do not need to use this dialog with MAS since
MAS provides a user interface for controlling the buffer size.
The “Override Buffer Size” checkbox enables MAS to set the buffer size. If
the checkbox is unchecked (unfilled), MAS will use the driver specified
default buffer size. If you check the “Override Buffer Size” checkbox MAS
will set the ASIO buffer size to number in the text box to the right of the
checkbox. MAS allows you to set that number to any arbitrary value. The
MAS/Mobile I/O Driver combination will not work correctly unless you
specify one of the valid buffer sizes (64, 128, 256, 512, 1024 or 2048).
WARNING: Since the buffer size is saved with the session in Digital Per-
former, and using smaller buffer sizes increases the CPU load, you may
encounter problems opening heavily loaded sessions on slower machines. If
you overload a machine due to having saved a small buffer size with a ses-
sion, MAS will warn you that the CPU has overloaded and will allow you to
disable your MAS plug-ins. If this happens, open the Configure Hardware
Device dialog and increase the buffer size. When you dismiss the Configure
Hardware Device dialog, the plug-ins will be re-enabled.
Figure 61: DP/MAS Configure Hardware Driver dialog box