Sensus® Technology: Audio Processing X3; Overview; Codec Provisioning - Omnia ONE Installation And Operation Manual

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x3
Sensus® Technology: Audio Processing

Overview

Until now, digital signal processing has been a more precise numeric implementation of well-known
analog methods. Even relatively recently designed digital audio processors couldn't veer too far
from the comparatively simplistic concepts that analog dynamics processing had utilized... until
now!
Extremely high power DSP chips have become available and at relatively low cost, and they make it
possible to build smarter and more complex processing algorithms that were too difficult or
impossible (or too expensive) to do in the past.
Running on a platform of the latest high power DSP chips, the OmniaONE and our new Sensus®
technology takes digital dynamics processing into a completely new frontier. Instead of the two-
dimensional static processing architecture of the past, Sensus® enables the audio processor to
modify its own architecture in real time and in response to ever-changing program content.
Simply stated, Sensus® has the ability to "sense" what must be done to a signal in order to best tailor
it for the following codec. As program content changes, it "rearranges the algorithms" to accomplish
this goal. The uniqueness of the Sensus® technology makes it highly suitable not only for codec pre-
conditioning (or provisioning), but also for a range of other highly specialized signal processing
challenges. The following is a discussion of how Sensus® technology can be applied to a coded
audio environment.

Codec Provisioning

The codec is now a common denominator in the world of audio and broadcasting. Digital
R
broadcasting (HDTV, HD-Radio , DAB, DRM), podcasting, webcasting, cellcasting, and
downloadable music files all employ a form of codec-based data compression in order to minimize
the bandwidth required to transmit data. The necessarily low bitrates utilized by these mediums
presents a tough challenge for any audio processor used prior to a codec.
Traditional dynamics processors were designed to fulfill the requirements of a medium where the
functions were generally static. That is, they were well suited to the rather simplistic peak control
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