Troubleshooting - Zoom U-44 Operation Manual

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Cannot select or use the
Confirm that the
computer correctly.
Quit all the software that is using the
and disconnect and reconnect the USB cable
connected to the
Reinstall the driver.
Connect the
directly to a USB port on the
computer. Do not connect it to a USB hub.
( →
Playback sound cannot be heard or is quiet
Check the speaker connections and volume
settings on the speakers.
controls.
Confirm that the Sound setting of the computer
If no sound can be heard or the volume is low
Recorded audio is too loud, too quiet or silent
Adjust the input gain of the
When using a condenser mic, turn phantom
power on.
C o n f i r m t h a t t h e S o u n d s e tt i n g o f t h e
computer that you are using is set to "ZOOM
The sound of the device connected to the
input jack is distorted
Confirm that the level indicators are not lighting
red. If they are, lower the input levels.
Sound skips during playback or recording
If you can adjust the audio buffer size of the
software that you are using, increase the buffer
size.
computer power saving settings OFF.
device
is connected to the
.
.
Connect the
computer. Do not connect it to a USB hub.
Cannot play or record
,
Confirm that the Sound setting of the computer
Confirm that
in the software you are using.
C o n f i r m t h a t
computer correctly.
Quit all software that is using the
disconnect and reconnect the
cable.
Cannot use with an iPad
( →
Confirm that the batteries are loaded or the
external power supply is connected correctly.
( → P. 7)
turn the power on.
Sound skips during digital input or output
Confirm that the device used for audio clock
synchronization is connected correctly.
If the
is the master, confirm that audio
clock is synchronized on the connected device.
If the
is a slave, confirm that the correct
clock source and sampling rate are selected
Cannot use in standalone AD/DA mode
and select the correct clock source before
turning the power on.
25
directly to a USB port on the
is set for input and output
i s c o n n e c t e d t o t h e
, then

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