Studio Technologies Dante 5422A, Руководство пользователя

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Issue 3, December 2022 Model 5422A User Guide
Page 6 Studio Technologies, Inc.
Model 5422A
DANTE INTERCOM AUDIO ENGINE
opportunity to obtain the absolutely finest audio per -
formance. Studio Technologies is confident that the
Model 5422A’s Auto Mix capability will meet or exceed
the automatic mixer performance of virtually all other
hardware- or software-based devices.
Two Versions
Two versions of the Model 5422A are available.
The Model 5422A-01 provides one 32-channel audio
engine. The Model 5422A-02 provides two 32-channel
audio engines for a total of 64 input and output chan-
nels. The size and scope of a specific application will
dictate which Model 5422A version is applicable. The
term “audio engine” was selected to describe a set of
audio input, processing, routing, and output resources
that can be configured to support specific intercom,
talent-cueing, and audio routing and control functions.
Unlike general-purpose digital matrix devices, the Mod-
el 5422A is optimized to allow direct support for these
special broadcast and general-intercom applications.
Group Configuration
Configuration choices select how each 32-channel
audio engine is segmented, labeled (named), and
optimized for how the associated audio signals are
processed.
Group Size
The ability to segment a 32-channel audio engine
into multiple groups allows efficient use of the Model
5422A’s Dante channels. As all Dante intercom belt-
packs are essentially 4-wire devices (having indepen-
dent receiver (input) and transmitter (output) channels)
“virtual” (simulated) party-line functionality must be
created within the Model 5422A’s audio engine(s).
This requires that the maximum number of participants
(users) on any one “party-line” be defined.
The 32 channels offered by an audio engine can be
configured into what are called groups. Simple configu -
ration choices in the Model 5422A’s menu pages allow
the number of groups and their sizes to be selected.
Groups can range in size from 32 channels (a complete
audio engine being used for a single group) to having
just four channels. The size of a group will dictate how
many devices and associated users can be part of any
one party-line or how many channels will be impacted
by a processing setting for a specific group. Ten choic -
es allow a wide range of group configurations to be
selected. The default setting for each audio engine is
to have four 8-channel groups. This leads to the Model
5422A-01 having four 8-channel groups and the Model
5422A-02 having eight 8-channel groups. Refer to the
Specifications section for a detailed list of the group
sizes that are available.
Group Labels
Each group can be assigned a unique label. These
labels would typically reflect how the specific groups
are going to be utilized. Labels such as Camera PL,
Lighting, Pyro, or Engineering would be typically
used in broadcast- or live-event-oriented intercom
applications. The configured labels are automatically
used by the Model 5422A’s Dante Interface, providing
clarity when routing Dante channels using applications
such as Dante Controller. Each group label can be a
combination of up to 14 alpha or numeric characters.
Channel numbers are automatically appended to the
entered labels to provide identification of the specific
channels within the Dante environment. A label of up
to 12 additional characters can also be added to each
specific channel, providing further details about an
application.
Group Operating Modes
While the primary application for the Model 5422A is
to create party-line (PL) intercom circuits, each group
can be independently configured from among nine
operating modes: Party-Line w/Auto Mix, Party-Line,
Summing Bus w/Auto Mix, Summing Bus, Pass-Thru,
IFB (1 Int-in), IFB (3 Int-in), Audio Switching (1-in/
2-out), and Audio Switching (2-in/1-out).
Party-Line
When a group is configured for Party-Line w/Auto Mix
or Party-Line operating mode the Model 5422A’s audio
processing circuitry creates a series of independent
“mix-minus” outputs, one for each channel in the group.
These specialized outputs allow each intercom user
assigned to that specific group (a “party-line”) to hear
all members of that group except for themselves. (This
is the origin of the term mix-minus and indicates a mix
of all sources but themselves.) By each user receiv-
ing a mix-minus signal precise control of each user’s
sidetone audio level and overall audio quality can be
maintained. The Party-Line w/Auto Mix operating mode
offers Model 5422A users a level of audio performance
that is unique among intercom applications.