Fostex PD606, Руководство пользователя

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Location Recorder Model PD606
Chapter 5: Recording/Playback
To activate/deactivate the limiter function, press the [SHIFT] key, followed by the [READY]
key of the desired channel (from channels 1 through 6 and the stereo bus channels).
When the limiter function is active, the [LIM.] indicator of the corresponding input channel
is lit. When the limiter is actually working, the [LIM.] indicator flashes quickly.
[LIM.] indicator of the
Stereo bus channels
[LIM.] indicator of each
channel (1 through 6)
By using the limiter when recording microphone sound, the signal level is prevented from
exceeding a certain level. In result, the signal level fluctuation is suppressed. By default, the
threshold of the PD606 limiter is set to -12 dB under the 24-bit full-scale level (all bits are
ON) and the compressed ratio is set to 1:5. The limiter attack time is fixed to 5 ms, while the
release time is fixed to 200 ms. You can set limiter parameters using the "Limiter parameter"
menu item in the "SYS SETUP" menu of the MENU mode (see page 159 for details).
Limiter setting
ST BUS [READY] key
CH1~CH6 [READY] key
The PD606 is equipped with the high-pass filter circuit. The cutoff frequency can be adjusted
within the range between 50 Hz and 300 Hz, while the filter slope can be selected between
-6 dB/oct. and -12 dB/oct.
The filter is useful to eliminate the wind noise during location recording or unnecessary low
frequency noise when recording voice or sound. You can make filter setting for each channel
individually.
High-pass filter setting
[HPF] controls
and switches
HPF
(Hz)
300 50
-12 -6 OFF
(dB/oct)
200 130
INPUT
SEL
300 50
-12 -6 OFF
200 130
300 50
-12 -6 OFF
200 130
300 50
-12 -6 OFF
200 130
300 50
-12 -6 OFF
200 130
300 50
-12 -6 OFF
200 130
48V T12
MIC
DM 48V T12 DM 48V T12 DM 48V T12 DM 48V T12 DM 48V T12 DM
LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC LINE
SHIFT
<Note>: When you use the limiter function, see also "Gain adjustment" on the next page.