Edirol UA-1EX Owner's Manual page 61

In Windows, did you make the setting described in "Giving priority to background
services"?
In order to ensure that audio processing occurs smoothly, make the setting described in "Giving
priority to background services." (➔ "Giving priority to Background Services" (p. 19))
In Windows, Power Management settings in the Control Panel may cause clicks or pops
to occur in the audio playback.
The power management properties that appear when you double-click Power Management will
differ depending on your computer system. The explanation that follows is for a typical situation, but
you should refer to the owner's manual for your computer to verify these settings.
Some computers may not have the following items.
1. In the Windows Control Panel, double-click the System icon. The System Properties dialog box
will appear.
2. Click the Hardware tab.
3. Click Device Manager to see the list of devices.
4. From the list, choose Advanced Power Management Support, and click Properties.
The Advanced Power Management Support Properties dialog box will appear.
5. Click the Settings tab, and in Troubleshooting, check the "Don't Poll Power Supply Status"
check box. Then click [OK].
6. In the System Properties dialog box, click [OK].
7. Restart Windows.
Could two or more audio devices be connected to your computer?
Try connecting only one UA-1EX to your computer. Check whether the noise disappears when only
the UA-1EX is connected to the computer. Connecting numerous audio devices to a computer may
produce noise in some situations. If this occurs, connect only the UA-1EX to your computer.
Are you using a USB device in addition to the UA-1EX?
Try switching off USB devices other than the UA-1EX.
If you have connected the UA-1EX to an external USB hard disk, please connect the UA-1EX directly
to a USB connector on the computer itself.
Are numerous software programs running?
Playback may be interrupted if numerous software programs are running at the same time, or when
you start up another software program. Close any unneeded software, and try again. If this does not
solve the problem, try restarting your computer.
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