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Audio Engineering Applications
Audio Engineering Applications
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Overview
WiNRADiO receivers have been used to assist in stage productions by
sound engineers of numerous famous performers and groups, famous
personalities, major world venues, events and performances.
With the WR-G33WSM model, WiNRADiO introduces a high-performance
low-cost receiver and spectrum analyzer specially developed for sound
engineers and performers who work with wireless microphones and other
wireless audio devices.
The receiver contains a number of specialist features tailored to
audio engineering. Its wide frequency range covers all standard wireless
microphone and other VHF/UHF frequencies used in stage production,
including the FM broadcast band and point-to-point communications. |
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User interface
The WR-G33WSM user interface displays a mix of standard receiver
controls such as a tuning knob, frequency display and signal strength
meter, supplemented by a number of innovative facilities specially
designed for wireless audio engineering.
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The large "swept" spectrum analyzer shows absolute signal strength
values, as well as differences from previous sweeps. A real-time audio
spectrum scope shows the instantaneous audio spectrum of the selected
demodulated channel. The audio recorder features a playlist for fast
selection of files for playback. |
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Software Defined Radio
The WR-G33WSM is the first Software Defined Radio
specifically designed for audio engineering and stage production
applications.
A Software Defined Radio (SDR) is one where most of the radio signal
processing is performed in software, using digital signal processing
methods, rather than using traditional hardware parts, resistors,
capacitors, diodes, etc. The received signal is digitized early in the
signal processing chain, and any further processing, demodulation and
decoding of the digitized signal is then performed entirely in software.
There are many advantages to this approach, especially the
flexibility of demodulation modes - new modes can be added easily by
simply upgrading software.
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The G33WSM also performs better than a comparable conventional receiver,
thanks to advanced signal processing techniques which make it possible
to implement sharper selectivity filters, and more accurate demodulators
and decoders than conventional hardware. The performance of a Software
Defined Radio receiver is also more consistent, stable and reliable
because component tolerances and aging do not play such an important
role as in a conventional receiver.
And finally, the G33WSM receiver offers far more features and
facilities than a conventional receiver. For example, the real-time
spectrum analyzer with both linear and logarithmic scale, variable IF
(intermediate frequency) filter and audio recording are some of the many
features which were previously unavailable on a conventional VHF/UHF
receiver, in particular at such an affordable price level.
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