Celestron SPX900 Camcorder User Manual


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<Note>
z Audio Channels 1 and 2 always receive the signals selected
with the AUDIO IN CH1 and CH2 switches.
z When the extension board AJ-YA902AG (optional accessory)
is attached, 4-channel recorded audio signals are SDI-output,
as is.
Specific audio settings are performed through the <MIC/
AUDIO1> and <MIC/AUDIO2> screens, which are accessible
from the MAIN OPERATION page.
For more information, see [8-6 MAIN OPERATION].
4-4-2 Adjusting Recording Levels
To adjust the recording levels for Audio Channels 1 and 2, follow
the steps below.
1 Position the MONITOR SELECT CH1/2 / CH3/4-selector
switch at CH1/2 so that the audio level meter on the display
window will provide CH1 and CH2 indications. Ensure that
the channel indications displayed in the window are 1 and
2.
Whether to enable or disable the FRONT AUDIO LEVEL
control must be preset through menu options FRONT VR
CH1 and FRONT VR CH2. Note that this control is factory-
disabled.
The menu options are found in the MIC/AUDIO1 screen,
which is accessible from the MAIN OPERATION page.
2 Position the AUDIO SELECT CH1/CH2 switch at [MAN].
3 While checking the audio channel level meter in the display
window or the audio level meter in the viewfinder, adjust the
AUDIO LEVEL CH1/CH2 control.
Note that if the level exceeds the top bar (0 dB), the word
OVER illuminates to show that the input level is excessive.
The adjustment made in such a way that the maximum level
will not reach the 0 dB bar.
Audio level meter on the display window
Audio level meter in the viewfinder
When operating the AJ-SPX900E without a sound recordist, it is
recommended that the FRONT AUDIO LEVEL control should be
used to adjust the audio level.
In advance, check the level meter in the viewfinder screen and
use the AUDIO LEVEL control to adjust the appropriate audio
channel so that no excessive audio signals will be admitted.
4-4-3 CH3 and CH4 Recording Levels
The following table shows the effects on the recording level for
Audio Channels 3 and 4 that depend on the settings and input
levels specified through the menu options AUTO LEVEL CH3
and AUTO LEVEL CH4. Note that the recording level cannot be
adjusted manually.
These options are found in the <MIC/AUDIO1> screen, which is
accessible from the MAIN OPERATION page.
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AUTO LEVEL
CH3/CH4
Input level
LINE MIC
ON AGC ON AGC ON
OFF AGC/LIMITER OFF LIMITER ON
h
EF
Y minM
s
frm
12
0
D
SLAVE HOLD W GPS
BATT
EF
OVER
10
OO
40
-dB
30
20
LOOP
MEDIA
DV
DRIVE OP-SLOT
VTCG
TIME DATE
P- REC
CTL
F:1----
R:2---- ---+
w
w
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