Orban 516EC Effect Processor
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Modell:
516EC
Datum:
1981
Kategorie:
Gruppe:
Beschreibung:
Digital Sibling Controller
Information
The Orban Model 516EC Dynamic Sibilance Controller has been
designed as a universal de-esser for the recording and
motion picture industries.
It offers electrical specifications consistent with other
state-of-the-art audio signal processing equipment,
extremely simple setup and operation, and dynamic
characteristics which have been optimized for sibilance
control. The Model 516EC incorporates a circuit which tracks
the input level, permitting constant amounts of de-essing
and audibly consistent results over an input level range of
roughly 15 dB.
Because of its automatic level tracking, the 516EC is ideal
for cinema de-essing, although it is equally as effective in
de-essing highly equalized vocal tracks in the production of
records and tapes for consumer use. The automatic level
tracking implies that the levels fed into the unit can be
permitted to vary through their natural dynamic range with
consistent de-essing whether the voice is loud or soft.
De-essers have been with us for years, usually as
frequency-dependent side-chains in limiters or compressors.
However, a compressor used as a de-esser cannot function
optimally if one attempts to compress and de-ess with the
same device, since optimal compression ratios, attack times,
and release times are quite different for the two modes of
operation. In addition, such devices are usually not
adjustable and often contain cheap 6 dB/octave filters which
provide insufficient selectivity between sibilance
frequencies and lower frequencies (where most vocal energy
is actually concentrated).
It would therefore appear that a de-esser is required as the
last link in the chain which includes an Equalizer and
perhaps a limiter or compressor. These devices all act to
boost sibilants to unnatural and offensive levels; the
de-esser then knocks down the sibilants without affecting
the gains in presence and perceived loudness that the
Equalizer and compressor have provided.
The 516EC has been designed to fulfill this function in an
ideal manner. When it is not de-essing, it acts as a
unity-gain line Amplifier. When the high-frequency level
begins to exceed a certain fraction of the average peak
input level (as set by the operator with the threshold
control), the gain is automatically reduced to hold the
output at this threshold level (the absolute value of which
depends on the average peak input level at that moment in
time). The 516EC attacks in 1 millisecond and releases in 15
milliseconds. Thus it can act on sibilants without affecting
surrounding vocal sounds in any way.
Dokumenttyp:
Service- und Bedienungsanleitung
Seiten:
17
Größe:
1.50 Mbytes (1577232 Bytes)
Sprache:
english
Revision:
Dokument-ID:
Datum:
1981 01 01
Qualität:
Gescanntes Dokument, alles ist lesbar.
Upload Datum:
2017 10 25
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c6ad14d6610f1cccfae53ce46ee2e239
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Information
INTRODUCTION ... 1
INSTALLATION ... 2
OPERATION ... 3
PERFORMANCE EVALUATION ... 4
Power Supply ... *. 4
Signal Processing Circuitry ... 4
ALIGNMENT PROCEDURE ... 5
CIRCUIT DESCRIPTION ... 5
Power Supply ... 5
Signal Processing Circuitry ... 6
MAINTENANCE ... 8
Routine Maintenance ... 8
Repair ... 8
FACTORY SERVICE ... 9
SHIPPING INSTRUCTIONS ... 9
PARTS
LIST ... 10
DSC SCHEMATIC ... 12
DSC ASSEMBLY DRAWING,