• The graphic accelerator of your computer may cause noise to occur during audio playback.
Use the following procedure to set graphic acceleration to "None."
1. In the Windows Control Panel, double-click [Display] to open the Display Properties dialog box, and click the [Settings] tab.
2. Click [Advanced] to open properties, and click the [Performance] tab.
3. In Graphics, move the Hardware acceleration: slider to None, and click [OK].
4. In the Display Properties dialog box, click [OK] to close the dialog box.
Then restart your computer.
• Noise is heard in the line input or mic input
If a MIDI sound module and the UA-3 are connected via USB to the same computer, and the output of the MIDI sound module is con-
nected to the line input jacks of the UA-3, noise from the computer may enter via the MIDI sound module and be heard from the UA-3. In
such cases, use a self-powered hub to connect the MIDI sound module and the UA-3 in parallel, or connect the MIDI sound module via
the serial interface or MIDI interface.
• Noise may be heard if you record and play back simultaneously.
If you record and play back simultaneously, the playback may be interrupted depending on the performance of the system, and this may
be heard as noise. However since priority is given to recording, the recorded data will not be lost.
• This problem may be solved by properly grounding the chassis of your computer, or the ground prong of the plug on the AC
power cord that was supplied with your computer. Also, make sure that there are no devices nearby that emit a strong magnetic
field, such as a television or a microwave oven.
• Are a large number of audio devices connected?
If a large number of audio devices are connected, noise may occur. Do not connect audio devices that you are not using.
Sound is interrupted during audio playback
• Try increasing the memory
You can increase the processing power of your computer by adding more memory. For details on adding memory, refer to the owner's
manual for your computer.
• Does your computer fulfill the USB specifications?
The audio may be interrupted if you are using a computer that does not electrically meet the USB specifications. In this case, the problem
may be solved if you connect a USB hub that contains its own power supply.
• Are numerous applications running?
If you use numerous applications during playback, or start up another application, the playback may be interrupted depending on your
computer system. Exit all unneeded applications, and try again. If this does not solve the problem, try restarting a computer.
• Try making the following changes to the disk drive settings.
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The following settings may not exist on your computer.
1. In the Windows Control Panel, double-click [System] to open the System Properties dialog box, and click the [Device Man-
ager] tab.
2. Double-click [Disk drives] to see the list of devices.
3. From the list, select GENERIC IDE DISK TYPExx, and click [Properties] to access the GENERIC IDE DISK TYPExx Prop-
erties dialog box.
The "xx" in GENERIC IDE DISK TYPExx will be a number that will differ depending on your
*
system.
4. Click the [Settings] tab, check the [DMA] check box in the Options, and click [OK] to close the dialog box.
*
Depending on your system, a dialog box for DMA settings may appear. After checking the contents,
click OK or Cancel.
5. In the System Properties dialog box, click [OK] to close the dialog box.
Restart your computer so that the above settings will take effect.
Audio playback stops
• On some computers, the Power Management settings in the Control Panel may cause audio playback to stop.
The Power Management Properties that are displayed when you double-click Power Management will differ depending on your computer
system. One example is given below, but you should consult the owner's manual for your computer as well. Some computers may not
have the following settings.
1. In the Windows Control Panel, double-click [System] to open the System Properties dialog box, and click the [Device Man-
ager] tab.
2. Double-click [System devices] to see the list of devices.
3. From the list, select [Advanced Power Management support], and click [Properties] to access the Advanced Power Man-
agement support properties dialog box.
4. Click the [Settings] tab, and in Troubleshooting, check the [Disable power status polling] check box. Then click [OK].
5. In the System Properties dialog box, click [OK] to close the dialog box.
6. Restart Windows.
UA-3
Troubleshooting
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