Adaptability Through Multiple Audio Processing Structures; Controllable - Orban OPTIMOD-FM 8500S Operating Manual

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INTRODUCTION
Adaptability through Multiple Audio Processing Struc-

Controllable

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All input, output, and power connections are rigorously RFI-suppressed to
Orban's traditional exacting standards, ensuring trouble-free installation.
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The 8500S is designed and certified to meet all applicable international
safety and emissions standards.
tures
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A processing structure is a program that operates as a complete audio proc-
essing system. The 8500S realizes its processing structures as a series of high-
speed mathematical computations made by Digital Signal Processing (DSP) chips.
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The 8500S features four processing structures: Five-Band (or "Multiband") for a
consistent, "processed" sound with 17 ms delay (typical), free from undesirable
side effects, Low-Latency Five-Band (12 ms delay), Ultra-Low-Latency Five-
Band (3.7 ms delay), and Two-Band (17 or 22 ms delay) for a transparent sound
that preserves the frequency balance of the original program material. A special
Two-Band preset creates a no-compromise "Protect" function that is functionally
similar to the "Protect" structures in earlier Orban digital processors.
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The 8500S can increase the density and loudness of the program material by
multiband compression, limiting, and clipping—improving the consistency of the
station's sound and increasing loudness and definition remarkably, without pro-
ducing unpleasant side effects.
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The 8500S rides gain over an adjustable range of up to 25 dB, compressing dy-
namic range and compensating for both operator gain-riding errors and gain in-
consistencies in automated systems.
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The 8500S's Two-Band processing structures can be made phase-linear to maxi-
mize audible transparency.
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The 8500S can be remote-controlled by 5-12V pulses applied to eight pro-
grammable, optically-isolated "general-purpose interface" (GPI) ports available
at the REMOTE INTERFACE connector on the rear panel.
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8500S PC Remote software is a graphical application that runs under Win-
dows 2000/XP/Vista/7. It communicates with a given 8500S via TCP/IP over mo-
dem, direct serial, and Ethernet connections. You can configure PC Remote to
switch between many 8500Ss via a convenient organizer that supports giving
any 8500S an alias and grouping multiple 8500Ss into folders. Clicking a 8500S's
icon causes PC Remote to connect to that 8500S through an Ethernet network,
or initiates a Windows Dial-Up or Direct Cable Connection if appropriate. The PC
ORBAN MODEL 8500S