Edirol UA-20 Owner's Manual page 62

Appendices
Clicks or pops may occur in the sound if a LAN is operating.
Try disabling the LAN in the Device Manager. If this eliminates the clicks or pops, you
may be able to solve the problem by updating your LAN driver or BIOS.
Does your sequencer software support ASIO 2.0?
If your ASIO-compatible software does not support ASIO 2.0, it will not operate
correctly if you use [UA-20 ASIO2.0 16bit] or [UA-20 ASIO2.0 24bit] as the ASIO
driver.
In this case, select either [UA-20 ASIO1.0 16bit] or [UA-20 ASIO1.0 24bit] as the ASIO
driver.
Does your sequencer software support 24-bit audio?
If your ASIO-compatible software does not support 24-bit audio input/output, it will
not operate correctly if you select [UA-20 ASIO1.0 24bit] or [UA-20 ASIO2.0 24bit] as
the ASIO driver. In this case, select either [UA-20 ASIO1.0 16bit] or [UA-20 ASIO2.0
16bit] as the ASIO driver.
Is the UA-20 connected to a USB hub?
Try connecting the UA-20 directly to the USB connector of your computer itself.
Noise may be entering via the line inputs or mic inputs.
If a MIDI sound module with a USB connector is connected via USB to the same
computer as the UA-20, and the output of the MIDI sound module is connected to the
input jacks of the UA-20, noise from the computer may be heard via the MIDI sound
module from the UA-20. In this case, you can either connect the MIDI sound module
and UA-20 in parallel via a self-powered hub, or connect the MIDI sound module in
series or via a MIDI interface.
Try making the following changes to the disk drive settings.
Some computers may not have the following settings.
1.
In the Windows Control Panel, double-click System.
2.
Click the Device Manager tab.
3.
Double-click Disk Drives to see the list of devices.
4.
From the list, select GENERIC IDE DISK TYPE??, and click Properties
to access the GENERIC IDE DISK TYPE?? Properties dialog box.
* In the ?? field of GENERIC IDE DISK TYPE??, there will be a number that differs
depending on your computing environment.
5.
Click the Settings tab, place a check mark in the check box for the DMA
option, and click [OK] to close the dialog box.
* Depending on your system, a dialog box for DMA settings may appear. Verify the
contents of the dialog box, and click [OK] or [Cancel].
6.
In System Properties dialog box, click [OK] to close the dialog box.
7.
Restart your computer so that the above settings will take effect.
62