Manual

Loudness Pilot – Basic concepts and operation
Loudness Pilot English Manual (2014-10-07) 21
Expanding your Loudness Pilot
Loudness Pilot offers considerable flexibility in
routing and processing audio signals. To benefit
from this flexibility, you need to understand the
basic concepts and building blocks of the device
as outlined in this section.
The audio processing capabilities of your device
depend on the number of dual-engine cards/
processors (3G Transmission cards) installed.
Each 3G Transmission card…
►
can process one SDI audio stream
►
holds two multichannel processors
►
is capable of running…
– two ALC2 algorithms
as well as
– two LM2 Loudness Radar Meters (op-
tional)
simultaneously.
Accordingly, a Loudness Pilot with three 3G
Transmission cards can handle three indepen-
dent streams.
Instructions on upgrading a base Loudness
Pilot with one or two Transmission 3G cards
are not part of this manual. They are provided
in a separate document that comes with the 3G
Transmission card.
Loudness Pilot SDI: The
Serial Digital Interface
With regards to inputs and outputs, Loudness
Pilot SDI is based on the Serial digital interface
(SDI) – a family of audio and video interfaces
standardized by the Society of Motion Picture
and Television Engineers (SMPTE).
An SDI signal may contain up to sixteen audio
channels (8 pairs) at 48kHz sample rate and 24
bit resolution.
We assume that you have a good working knowl-
edge of SDI. The standard as such is not dis-
cussed in this manual.
Loudness Pilot AES
For many years, TC Electronic has focused on
developing highly intelligent clocking solutions.
Loudness Pilot features one of the most com-
plex and intelligent technologies we have ever
made. It is based on the TC developed DICE™
core with its JET™ technology, which has been
further refined to deliver important features spe-
cifically for broadcast use.
►
Loudness Pilot locks really fast and artefact-
free to clock sources.
►
It sends as good an audio signal as possible
through at all times.
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If the source is lost, Loudness Pilot keeps on
running at the “last good sync source rate”.
►
Loudness Pilot keeps outgoing clock incon-
sistencies (e.g. when the sync reference is
lost or the sync source changes) to a mini-
mum. This ensures that e.g. upstream source
switching will affect downstream devices to
the least possible extent.
►
Loudness Pilot reduces incoming jitter to a
nearly unmeasurable level.