Zaxcom ZFR100, Руководство пользователя

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ZFR100 Recording System Owner’s Manual Chapter 2
9
HIGH-PASS FILTER Menu
Access : Press the menu button until High Pass appears in the top left of the LCD display.
The High-Pass filter menu indicates different high-pass filter cutoff frequencies. You can select a
frequency from 30þHz to 220þHz. Use the Increment and decrement keys to change the high pass
cutoff frequency.
All Filters are implemented in the digital domain, so the automatic compressor/limiter may engage
even when no substantial audio is heard. The purpose of the limiter is to prevent the mic preamp
from over-driving the A/D converter. Therefore the limiter operates on audio before it has been
processed by the high-pass filter. If there is a massive amount of low frequency audio content being
filtered out by the high pass filter, such as wind noise, you may hear the effects of the limiter
without hearing the audio that caused the limiter to engage. If this problem occurs then the gain is
set too high. Reduce the mic preamp gain below that level which triggers the limiter.
Limiter Menu
Access : Press the menu button until Limiter appears in the top left of the LCD display.
The LCD display also displays the current status of the limiter. Use the Increment and Decrement
Keys to enable or disable the limiter.
When the input signal is too high for the gain setting, it is clipped and results in distortion and
popping. The limiter is used to prevent clipping by beginning to engage around 10 dB from
clipping. When using lavaliere microphones, you normally would enable the limiter function on the
ZFR100. However if the input signal being fed to the ZFR100 is coming from a mixer that is using
a limiter, you should not use the limiter function on the ZFR100.
Transport Buttons
The transport buttons; record, play, and stop, are located on the top of the ZFR100.
Record button
This button is used to put the ZFR100 into the record mode. If the record button is pressed when the
ZFR100 is already in record mode the ZFR100 closes the current file and open up a new file at the
time the button is pressed. The green LED blinks to confirm the creation of a new file. This is done
to mark a point in time to make it easier to identify in post-production.
Play button
Pressing the play button replays the last recording from its beginning. If the play button is pressed
when the ZFR100 is already in the play mode the playback is advanced to the next recorded
segment. The word play on the display changes to show the segment number currently being
played.
Stop Button
Pressing the stop button puts the ZFR100 into the stop mode. If the stop button is pressed when the
ZFR100 is in the stop mode the playback segment pointer is decremented to the previously
recorded segment. The word stop on the display change to show the segment number that is ready
to play.