Roland UA-30 - Page 46

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Troubleshooting
■ Noise is heard when playing back audio
• Is a mic still connected?
If a mic is connected to the UA-30, use the Guitar/Mic input adjustment
slider to lower the input level.
• 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-30 are connected via USB to the same
computer, and the output of the MIDI sound module is connected to the line
input jacks of the UA-30, noise from the computer may enter via the MIDI
sound module and be heard from the UA-30. In such cases, use a self-
powered hub to connect the MIDI sound module and the UA-30 in parallel,
or connect the MIDI sound module via the serial interface or MIDI interface.
• Set the “Record input select switch” (REC SEL) to “DIGITAL”.
Noise may enter the audio output because of the guitar, mic, or line input.
Change the “Record input select switch” (REC SEL) to “DIGITAL”.
• 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.