Roland GT-PRO Owner's Manual download pdf (Page 148)

148

Troubleshooting

❏ 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 [GT-

PRO ASIO2.0 16bit] or [GT-PRO ASIO2.0 24bit] as the

ASIO driver.

In this case, select either [GT-PRO ASIO1.0 16bit] or [GT-

PRO 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 [GT-PRO ASIO1.0 24bit] or [GT-PRO ASIO2.0

24bit] as the ASIO driver. In this case, select either [GT-

PRO ASIO1.0 16bit] or [GT-PRO ASIO2.0 16bit] as the

ASIO driver.

❏ Is the GT-PRO connected to a USB hub?

→ Try connecting the GT-PRO directly to the USB

connector of the Macintosh itself.

❏ Are you using a USB device other than the GT-PRO?

→ Try turning off the power of all USB audio devices other

than the GT-PRO.

→ In some cases, you may also be able to solve this problem

by grounding the chassis of your computer, or the

grounding connector of the AC power supply plug of

your computer. In addition, you can check whether any

devices that produce a strong magnetic field are located

nearby, such as a television or microwave oven.

Also check the troubleshooting item Sound is

interrupted during audio recording/playback.

❏ Is the SYS: Input Select (p. 96) set to “USB In?”

→ When SYS: Input Select is set to “USB In,” the GT-PRO’s

effects are applied to the audio signals from the

computer. If you want to output the computer’s audio

signals unchanged to an audio device, set SYS: Input

Select to “Guitar In.”

Sound is interrupted during audio

recording/playback

❏ Are many applications running on your computer?

→ If you use many applications or start up other

applications during playback, playback may be

interrupted, depending on your computer system. Please

exit unneeded applications, and try again. If this does

not resolve the problem, try restarting your computer.

❏ Graphic accelerators may cause noise to be heard

during audio playback.

→ Use the following procedure to turn the graphic

accelerator “Off”.

1. In the Windows Control Panel, double-click Display to

open the “Display Properties” dialog box, and click the

“Settings” tab.

2. Click Advanced, and in the properties that appear, click

the “Performance” tab.

For Windows XP, click Advanced, and then click the

Troubleshoot tab.

For Windows 2000, click Advanced, and then click the

Troubleshooting tab.

3. Set the Hardware acceleration slider to None, and click

[OK].

4. In the “Display Properties” dialog box, click [OK] to

close the dialog box.

5. Restart your computer.

❏ Make the settings that enable background processing.

→ Make these settings so that audio processing can be

performed smoothly.

Make settings as described in Make Windows XP (p. 113)

or Windows 2000 (p. 116) settings to “Giving priority to

background services.”

→ Try using the following procedure to change your disk

drive settings.

The following setting item may not exist on some

computers.

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.

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Roland GT-PRO Owner's Manual Page 148

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