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10
RECORDING
Selection and Manipulation
of Input Source
Input Source Selection
Input source is selected from external XLR microphone
connector input, 1/4" microphone connector input,
internal microphone input, line input, and telephone
input.
INPUT LEVEL switch selects from telephone input,
microphone input, and line input. Only when INPUT
LEVEL switch is at the MIC INPUT position, MIC
INPUT switch becomes effective. XLR microphone
connector input is assigned to "1" position of MIC
INPUT switch. 1/4" microphone connector input and
internal microphone input are assigned to "2 / INT
MIC" position of MIC INPUT switch.
If a microphone plug is inserted into the 1/4"
microphone connector, the input from the 1/4"
microphone connector becomes effective. If a
microphone plug is not inserted into the 1/4"
microphone connector, the input from the internal
microphone becomes effective.
Effective microphone input
MIC ATTENUATION
MIC ATTENUATION is effective only for the signal
from external microphone inputs, i.e. XLR microphone
connector input and 1/4" microphone connector input.
MIC ATTENUATION is NOT effective for the signal
from internal microphone inputs and line input.
0dB (no attenuation), -15dB attenuation, and -30dB
attenuation of the microphone input is selected by MIC
ATTENUATION switch. Mic attenuation is used to
normalize the difference in sensitivity of the external
microphones and realize the best S/N ratio in recording.
Ambient Noise Control
ANC (Ambient Noise Control) is effective for all
microphone input and telephone input, but is not
effective for line input.
This function filters out unwanted frequencies for
recording.
• Band-pass (
) : Cuts low frequency (150Hz and
lower) and high frequency (3KHz and higher)
• Flat : No filtering
• Low-cut (
) : Cuts low frequency (150Hz and
lower)
REC LEVEL
For all inputs (external microphone, internal
microphone, line), three ways of level control are
selected by REC LEVEL switch
• ALC (Automatic Level Control): Automated recording
level adjustment based on the level of the input signal
(REC LEVEL knob does not effect the recording).
Time constant is long to prevent sudden fluctuations
in the recording level.
• LIMITER: Although the recording level must be
adjusted by REC LEVEL knob, signals over 0VU
trigger an automatic reduction of the recording level.
Time constant is short to provide quick restoration of
the manually set recording level.
When limitter works (at signals over 0VU), REC LED
also dimms as a noticeable warning.
(Refer to Recording Indication on page xx)
• MANUAL: Recording level must be adjusted
manually using the REC LEVEL knob.
Effective Manipulation for Inputs
Recording Level Adjustment
For the input on which REC LEVEL is effective (refer to
the above table), recording level should be adjusted
using LEVEL KNOB. Watching the audio level meter
and monitoring the input sound, use the REC LEVEL
knob to adjust the audio level meter so that the 0dB
indicator just barely flicker at the highest peak of the
input sound level. The OVER indicator should not light
(this would result in clipping).
MIC
ON 1
2/INT SP LP
OFF
LOCKOFF
SPEAKER
ALC
LIMITER
REC LEVEL
KEY LOCK
MANUAL
TEL LINE
INPUT
PRE REC
MP
REC MODE
MIC ATTEN
FLAT
ANC
-30dB
OFF ON
-15dB
0dB
ON 1
SP LP
OFF
LOCKOFF
SPEAKER
ALC
LIMITER
REC LEVEL
KEY LOCK
MANUAL
TEL LINE
PRE REC
MP
REC MODE
FLAT
ANC
-30dB
OFF ON
-15dB
0dB
MIC
2/INT
INPUT
MIC ATTEN
ON 1
SP LP
OFF
LOCKOFF
SPEAKER
ALC
LIMITER
REC LEVEL
KEY LOCK
MANUAL
TEL LINE
PRE REC
MP
REC MODE
FLAT
ANC
-30dB
OFF ON
-15dB
0dB
MIC
2/INT
INPUT
MIC ATTEN
MIC INPUT
switch position
1 2 / INT MIC
1/4" connector
Inserted
XLR microphone
connector input
1/4" microphone
connector input
Not inserted
Internal Microphone
Input
MIC ANC REC LEVEL
ATTENUATION
(Ambieent Noise
(ALC, LIMITTER,
Control) MANUAL)
Not effective Not effective Effective
Effective Effective Effective
Effective Effective Effective
Not effective Effective Effective
Not effective Not effective Effective
Manipulation
Input
Telephone Input
XLR microphone
connector input
1/4" microphone
connector input
Internal
microphone Input
Line Input
MIC