Vorsis AirAura, Руководство пользователя

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- Welcome to AirAura -
The Audio Processing ‘Game Changer’
In the fall of 2007 we set an aggressive goal to design a new FM peak clipper.
Our goal was to find ways to better handle the challenges posed by competitive
loudness and the FM pre-emphasis curve without the audible aliasing, unnatural
high frequency loss, and intermodulation distortion side effects encountered with
conventional clippers. Little did we know that we would be working on our new
FM peak clipper for almost three years before our lofty goals were met to our
satisfaction.
Our new clipper (project code name “AirAura”) is a
completely new approach to
FM audio peak control. AirAura clipper’s algorithm has the resolution required to
be able to tell the difference between distortion and audio, and mitigate only the
audible distortion. Music or speech, our new clipper makes it
effortless to be
competitively loud and clean at the same time.
The new clipper turned out to be powerful, but it also required enhanced DSP
hardware in order to run it. Therefore we decided to make an entirely new
hardware product around it, and the AirAura on-air processor was born. While we
were under the hood we also tweaked up our Vorsis Bass Management System
algorithm (creating VBMS-
II
), and also improved our well regarded Sweet Spot
Technology (SST).
VBMS-
II
effortlessly reveals and controls very deep and natural bass in program
material that contains such bass. However, VBMS is not a bass creator . Rather,
it’s an algorithm that artistically manages bass in a way that keeps it and the rest
of the audio spectrum
clean and natural . To enhance the bass experience even
further, we outfitted VBMS-
II
with a new Bass Texture algorithm which allows
customization of the bass experience when listening on receivers with smaller,
bass-shy speakers.
Our SST algorithm has been well received by Vorsis customers in the broadcast
industry … even Public Radio stations. SST
invisibly manages the behavior of
the five-band AGC as the incoming program density changes. Transitions
between today’s heavily mastered hits and material mastered in a more gentle
time are no longer ‘on-air speed bumps’. SST manages program density as
content changes to provide the listener with a smooth, consistent, easy to listen
to sound.
SST is so effective at invisibly managing the audio that Vorsis products
incorporating this feature have been installed in facilities playing everything from
the most blaring modern rock to the quiet solitude of public radio stations with
much more conservative material.
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