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System for digital recording of sound ED
Electronic Design Ltd.
developed fully new, specialized system for efficient recording
of sound in casinos, which unites numerous different working solutions,
components and instruments,... system, that is the fruit of years
and years of planning and it is based on our experiences, hard
work and development in the field of gambling. It is unique, efficient
system for recording of audio in this specialized industry.
Problems: Quality perception and recognition of sounds during the operation of casino (money boxes, game tables, protected areas, ... ), quality recording of this sounds, suitable archiving of data and friendly, efficient analyses of storage data; are the problems that managers of casinos are more than aware of. Problems demands evidently recognizable perception of sounds from entire casino, absence of anomalies in sound that could influence the quality of sound controlling in any way, and efficient and simple administration of the system.
Solutions: Sensors, that are
installed on various locations of casino and they are in function
of sound converters that transform sound to electric information
(microphones). Sensors are electrostatic, so-called capacitor
or ribbons microphones. Regarding the characteristic of sound
perception from surroundings, they divide in to few types (pointed,
omni directional, less or more sensitive,... ). Quality detection
depend on coverage of wide frequency spectrum (20Hz – 20 khz,
), top signal and noise ratio(90 dB or better), absence of microphone
feedback, anomalies and disturbances, small distortion, linearity,
stable workflow (absence on oscillations), long lifespan and high
reliability.
Wiring.
Regarding that sensor transforms sound into relatively weak electric
signal, this signal is relative collector of disturbances. That’s
why amplifier is directly in sensor. At first, weak level of electric
signal, is a bit amplified and prepared to be transferred through
the wiring. Quality wiring, that can be also 200m per sensor, of
highest importance. State of the art installation and cable with
suitable construction and quality are of highest priority. If investor
already has at disposal lower quality of wire installation, we can
provide quality solution by using our special power filter unit.
Electronic,
power linear, filter unit serves as transformer of signal that is
suitable for transfer of sound information through computer net
(ethernet) and at the same time to distribute audio signal to control
monitors. ED – MDU 8 is 8 channel
instrument, designed specially for this use. If application demands
larger number of channels, it is necessary to add suitable number
of instruments. Device on input, filter disturbances, that are outside
of useful signal. Sensors are not recognizing sound fully linearly,
that’s why frequency compensation is implemented making it linear
and amplified. Signal is amplified so much, that sensors can recognize
quieter talk, rustling, chattering,.. from few meters. Accidental
(possible) loud peaks from sound signals near the sensor (if needed),
are reorganized with active built-in dynamic limiters. ED
- MDU 8 is assembled from electronic modules, works at
the same time as impedance adaptor between sensors and instruments,
which digitaly transfer signal to recording devices and at the same
time reproduce it analog.
System for transfer recording of sound signal . Sound signal, is transferred at the same time as video signal in two different ways. Supervisor listens what occurs on location, but at the same time video and sound from all cameras and microphones is recorded. Digital transfer of sound is distributed over “ethernet” computer net.
Regarding
efficiency of workflow, reliability and functionalism, ED
system for digital recording of sound in casinos offer state of
the art technology. For more informations, please contact us directly
at ED Electronic Design Ltd.
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Browser – Graphically kind for user
- display
1, 4, 9 or 16 recordings on screen
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