Roland DUO-CAPTURE EX Owner's Manual page 24

Appendix
Problem
Sound.is.interrupted.
during.playback.or.
recording
Noise.or.distortion.
occurs.elsewhere.than.
in.the.playback.from.
my.computer
24
Items.to.Check
Windows
Is the power management setting in
Windows set to economy mode?
Windows
Have you set the system's "Performance"
setting?
Is the DUO-CAPTURE EX connected to a USB
hub?
Are you using the included USB cable?
Windows.7
Is the monitoring function of Windows
turned on?
Did you try to play back or record
immediately after the computer started up
or after waking up from sleep mode?
Is a guitar connected?
Could you have left an unused microphone
or guitar connected?
Could the MIDI sound module and the
DUO-CAPTURE EX be connected to your
computer, and the output of the MIDI sound
module be connected to the INPUT 1 or
INPUT 2 jack of the DUO-CAPTURE EX?
Have you connected the ground terminal?
Action
Refer to the "Win (Mac) Driver/Readme.
htm" file on the DUO-CAPTURE EX Driver
CD-ROM.
Connect the DUO-CAPTURE EX directly to
one of the computer's USB ports.
You must use the included USB cable.
Some commercially available USB cables
do not meet the requirements of the
USB standard, and this may prevent
the DUO-CAPTURE EX from operating
correctly.
Turn off the monitoring function (p. 30).
Wait and try playing back or recording
later.
Move as far away from the computer as
possible.
If the noise decreases when you lower your
guitar's volume, it may be that your guitar's
pickups are being affected by noise from
your computer or display.
Disconnect the unused microphone or
guitar, and turn the [SENS 1] and [SENS 2]
knobs fully to the left in order to lower the
input level.
Connect the MIDI sound module and
the DUO-CAPTURE EX to a USB hub that
connects to a power supply.
You may be able to solve the problem
by grounding a metal component of
your computer or the ground pin of
our computer's AC adaptor. Also check
whether there might be a device nearby
that is emitting a strong electromagnetic
field, such as a television or microwave
oven.