BSS Audio DPR-402 Owner's Manual - Manual (Page 29)

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14.0 Operation and Applications
14.1 Compression Barrier strip linking B-C and D-G (as factory set).
Controls
MODE SWITCH
THRESHOLD
RATIO
ATTACK
RELEASE
GAIN
CHN BYPASS
DE-ESS THRSHLD
FREQ
PK LIM THRSHLD
Initial settings.
Position
Compress
Out
4
-
Auto
0dB
In (Illuminated)
Out
-
Out
Rotate the THRESHOLD control anticlockwise until the BELOW THRESHOLD
meter is fully illuminated and an appropriate amount of gain is indicated on
the GAIN REDUCTION meter. This operation will be accompanied with a
drop in output level, as indicated by the OUTPUT METER. The output GAIN
CONTROL should now be adjusted to reinstate the output level. The levels of
the uncompressed input signal and the compressed output signal can now be
compared on the output meter by operating the METER INPUT switch.
Final adjustments of the controls can then be made to suit particular
requirements, including the RATIO, ATTACK, and RELEASE controls. The
'auto' position of the release control provides for a program related operation
of the dynamics of the unit, and will be accepted for most general purpose
applications. Should a tighter or looser requirement be neccesary, then both
the attack and release controls can be set individually to suit.
The experienced engineer will be able to set the compressor controls to near
optimum position for any source material with the BYPASS switch out, so that
the compressor can be 'dropped' into a live performance without disturbance.
14.2 De-essing The DPR-402 has three modes of de-essing available, de-ess wide with
simultaneous compression, de-ess wide with full dynamic control, and de-ess
HF with full dynamic control. De-ess wide attenuates with whole frequency
spectrum, and although acceptable for most vocal sources, it may cause
undesirable side effects on a mixed program source (refer to section 12.2 and
12.3). De-ess HF only attenuates the high frequencies and therefore produces
superior results in all cases, which is essential when de-essing a mixed
program source.
If simultaneous de-ess HF and compression are required, the separate channels
must be used for each function.
Operation/Applications