BSS Audio DPR-402 Owner's Manual - Manual (Page 31)

31
14.5 De-ess HF with
Full Dynamic
Control
Barrier strip linking B-C and D-G (as factory set).
Initial settings.
Controls Position
MODE SWITCH
THRESHOLD
RATIO
ATTACK
RELEASE
GAIN
CHN BYPASS
DE-ESS THRSHLD
FREQ
PK LIM THRSHLD
De-ess HF
Out
Infinity
50 microseconds
50 milliseconds
0dB
In (Illuminated)
Out
4kHz
Out
The PEAK LIMITER control is calibrated in dBv (ref 0.775v), and is set to suit
the headroom of following equipment. Should the red LED indicator remain on
other than for occasional peaks, the GAIN control should be backed off to
reduce the signal to the peak limiter. If this produces an unwanted decrease in
overall output level, then the amount of compression should be increased
either by reducing the compressor threshold, or by increasing the compressor
ratio and then reinstating the gain.
Rotate the THRESHOLD control anticlockwise until the BELOW THRESHOLD
meter is fully illuminated and an appropriate amount of gain reduction is
indicated on the GAIN REDUCTION meter. The FREQ control and
THRESHOLD control can now be fine tuned to achieve the desired effect
whilst listening to the program. Gain compensation will not normally be
required when de-essing. Although fast attack and release times are most
appropriate, they should be adjusted to achieve the best results. The 'auto'
position should NOT be used.
To aid the correct setting of the FREQ control in relation to the audible
sibilance, the source program can be listened to through the internal de-ess
filter by depressing the MON S.C. switch. This replaces the normal signal at
the output connector with the output of the de-ess filter.
The peak limiter should NOT be used in the HF mode.
14.6 Peak Limiting The peak limiter is designed to be used in conjunction with compression and/
or any wide band de-essing. It should not be used simultaneously with HF de-
essing or when external filters are patched into the SUBTRACT side chain
(Terminal G).
Barrier strip linking : D-G (other links to suit functions as required).
Initial settings.
Controls Position
PK LIM THRSHLD As required
FAST/SLOW switch
on rear panel FAST