Roland A-49 Owner's Manual page 45

Problem Confirmation
Are multiple programs running?
Is the system software up to date?
Have you used Mac OS X Software Update?
Are the drivers for the computer's internal
chipset and graphics card up to date?
Sound is
interrupted
Are the drivers for the computer's LAN
during playback or
hardware (wired and wireless) up to date?
recording, sound
drops out
Is the computer's power management setting
set to economy mode?
Is the unit connected to a USB hub?
Windows
Is the driver's [Lighten Load] setting turned off?
Did you try to play back or record immediately
after the computer started up or after it woke
up from sleep mode?
There's a time lag
Have you lowered (decreased) the audio buffer
from when you
size of your software sound generator?
play the keyboard
until your software
Have you lowered (decreased) the buffer size
sound generator
for your sound card?
produces sound
Troubleshooting
Resolution
Exit programs that are not in use.
Run Windows Update or Microsoft Update
and make sure the system software is up to
date.
Run Software Update and make sure the
system software is up to date.
Update to the latest drivers, as necessary.
Install the latest LAN hardware drivers.
If the problem is not resolved, disable the
LAN.
Check the power management setting and
make the appropriate setting (p. 46).
Connect the unit directly to one of the
computer's USB connectors.
Place a check in the [Lighten Load] check
box (p. 49).
Wait a while before attempting playback or
recording.
A software sound generator produces sound
using your computer's sound card. Before the
sound from the software sound generator is
actually heard from the sound card as sound,
there will be a time lag referred to as "latency. "
Regardless of the combination of sound
generator and sound card you use, there will
always be some latency. Usually, however,
the latency can be kept to an acceptable
amount by using the right combination of
sound generator and card, and by making the
appropriate settings.
For details on how to make these settings,
refer to the owner's manuals for your software
and sound card.
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