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Studio Technologies Model 76B/77B Surround Monitoring System Details
5.1
Surround Monitoring System with Digital In / Analog Out and Optimized for
Broadcast
The StudioComm 76B/77B Surround Monitoring
System with digital inputs and analog outputs enables simple and effective
monitoring of 5.1 surround and stereo audio material. Comprised of a Model 76B
Central Controller and a Model 77B Control Console, this system is especially
well suited for broadcast master control and post-production applications with analog-input
loudspeakers.
Highlights
- Digital
audio inputs
- Analog
audio outputs
- Flexible input source
selection
- Downmix
- Dolby
E dialnorm support
- Level
adjustment, reference level, and dim
- Auxiliary
monitor output (2-channel)
Model 76B Central Controller
The Model 76B Central Controller is rack
mountable and offers two surround (5.1) and three stereo (2-channel) digital
inputs that are compatible with AES3id sources. Sample rates of up to 192 kHz
and bit depth of up to 24 are directly supported. Exceptional dynamic range and
extremely low distortion ensure that the audio quality of each source is
maintained.
The Model 76B Central Controller has eight
analog balanced line-level outputs organized as:
- Surround (5.1)
- Auxiliary stereo (2-channel)
Model 77B and Model 71 Control Consoles
The Model 77B Control Console is the
"command center." Designed to reside at an operator's location, it
allows fingertip selection of all monitoring functions. Numerous LED indicators
provide complete status information. Up to six unique input choices are
available. Each of the choices can be configured from the system's two surround
(5.1) and three stereo (2-channel) inputs. The configuration mode also allows
stereo inputs A and B to be used as either stereo or dual monaural sources.
This can be especially useful in broadcast applications where a 2-channel
AES3id source may carry two independent monaural signals.
A large, easy-to-use rotary digital encoder
provides control of the surround monitor output level in precise 0.5-dB steps.
A 4-digit numeric display indicates the monitor output or dialnorm level in
real time. The monitor output level can be adjusted via the rotary level
control, the reference level function, or by way of the dialnorm information
included in Dolby E metadata (refer to "Dialnorm Support").
The Model 71 Control Console works with the
Model 77B to provide additional user locations with the most frequently desired
functions: level adjustment, reference level, and dim. One Model 76B Central
Controller can support a combination of up to four Model 77B or Model 71
Control Consoles.
Dialnorm Support
The dialog normalization
"dialnorm" value is an integral part of many broadcast distribution
systems and represents the average dialog level of an associated audio program,
ending up as part of consumer audio playback systems. The dialnorm level value
is a component of the Dolby E metadata, and when de-embedded, can be
"read" by the Model 76B Central Controller and displayed on the 77B
Control Console. By automatically adjusting the surround monitor output level
in response to the dialnorm value, a professional broadcast or post-production
environment can more accurately simulate the end user's experience. |
