Adaptability Through Multiple Audio Processing Structures - Orban OPTIMOD 6300 Operating Manual

OPTIMOD 6300 DIGITAL
kHz, 44.1 kHz, 48, 88.2, and 96 kHz sample rates. The preemphasis status and
output levels are separately adjustable for the analog and digital outputs.
Note that the 6300 cannot provide simultaneous, independent audio
processing for flat and preemphasized channels. Even though one output
may be pre-emphasized while other is flat, the only difference between
the outputs is that the "flat" output has de-emphasis applied to it after
the processing while the preemphasized output does not.

OPTIMOD 6300's outputs can be independently configured to emit the output of
the AGC or the output of the multiband compressor/limiter, all configurable
to use or bypass look-ahead limiting. So a 6300 can be configured to drive an
STL with a peak-limited output from the AGC while also providing a fully
processed digital radio/netcast feed and a low delay, multiband com-
pressed talent headphone feed.

OPTIMOD 6300 controls the audio bandwidth as necessary to accommodate
the transmitted sample frequency. OPTIMOD 6300's high frequency bandwidth
can be switched instantly (typically in 1 kHz increments) between 10 kHz and 20
kHz. 20 kHz is used for highest-quality systems. 15 kHz meets the requirements
of any system that uses 32 kHz sample frequency, while 10 kHz is appropriate for
24 kHz sample frequency.

The 6300's dual-mono mode allows entirely separate mono programs to be
processed, facilitating dual-language operation.
In this mode, both processing channels operate using the same process-
ing parameters (like release time); you cannot adjust the two channels to
provide different processing textures.

The analog inputs are transformerless, balanced 10k instrumentation-
amplifier circuits and the analog outputs are transformerless, balanced, and
floating (with 50 impedance) to ensure highest transparency and accurate
pulse response.

All input, output, and power connections are rigorously RFI-suppressed to
Orban's traditional exacting standards, ensuring trouble-free installation.

The 6300 is designed and certified to meet all applicable international
safety and emissions standards.

Adaptability through Multiple Audio Processing Structures


A processing structure is a program that operates as a complete audio proc-
essing system. Only one processing structure can be active at a time. OPTIMOD
6300 realizes its processing structures as a series of high-speed mathematical
computations made by Digital Signal Processing (DSP) chips.
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INTRODUCTION