D2-7XX83_14 Datasheet, PDF (31/33 Pages) Intersil Corporation – Intelligent Digital Amplifier and Sound Processor

D2-7xx83
Upward compressors support two inputs. One input receives the
audio that is processed by the compressor and passed to its
output. A separate side chain input is used as the reference input
for the processing algorithms.
DELAY
A delay block simply adds delay to the audio signal. A single
delay parameter is used.
CROSSOVER
Low-pass and high-pass filter blocks add frequency filtering to
the audio paths, providing appropriate signal processing for
speaker crossover functionality, including bi-amplified solutions,
and subwoofer low-pass filtering.
HIGH/LOW-PASS FILTERS
High-Pass and Low-Pass filter blocks are provided for each of the
5 output channels downstream of the Router and Stereo Mixer.
These provide a flexible Crossover function for all the output
channels, including provision for defining the subwoofer
channel’s frequency response.
Filters are implemented as cascaded elements, with elements
allocated for high-pass as well as for low-pass functionality, with
complete flexibility of assignment. Pre-defined filter types
including Butterworth, Bessel, and Linkwitz-Riley
implementations are also provided.
ROUTERS
Routers provide individual audio path selection to any one of
available input channels. The router performs path assignment
only. It does not have a provision for gain or signal level
adjustment.
LOUDNESS CONTOUR
Loudness contour provides adjustment to allow for dynamically
and automatically enhancing the frequency response of the
audio program material relative to the master volume Level
setting. The Loudness Contour models the frequency response
correction as defined by the Fletcher/Munson audio response
curve. It provides for amplitude or volume changes to those
signals to which the ear does not respond equally at very low
listening levels.
AUDIO PROCESSING ENHANCEMENTS AND DECODING
Depending on the device part number and design-specific
firmware definitions, the DAE-6 device supports a variety of
processing, decoding, virtualization, and pre/post processing
feature sets, as well as options for DSP clock speed and memory
capacity. Features and processing support are shown in
“DAE-6 Device Feature Set Offering” on page 3.
SOUNDSUITE™ PROCESSING
The D2Audio SoundSuite™ audio processing provides a full set of
enhancements to audio that greatly add to the quality and
listening experience of sound in wide scopes of consumer
devices. The D2Audio SoundSuite™ algorithms use
psycho-acoustic processing that create a rich-sounding
environment from small speakers, and synthesizes the sound
and quality equivalent to more complex systems. It is especially
suited to consumer products that include televisions, docking
stations, and mini hi-fi stereo products.
The DAE-6 includes enhanced SoundSuite Processing that
includes:
• D2Audio^® WideSound™
• D2Audio^® DeepBass™
• D2Audio^® AudioAlign™
• D2Audio^® ClearVoice™
The D2Audio^®SoundSuite™ algorithms are completely included
within the D2-71083 and D2-74083 DAE-6 devices.
MARK LEVINSON MIGHTYCAT™ PROCESSING
The Mark Levinson MightyCat™ Series of Processors provide an
exclusive set of Mastering Tools and Tuning Capabilities, and
have been developed and refined by Mark Levinson over the
course of his many years of recording experience. The Tools and
Capabilities allow for an extended Studio Quality Tuning that is
only available in the MightyCat™ Series of DAE-6 Processors.
The MightyCat™ algorithms are included within the D2MC-72083
and D2MC-76083 devices. Refer also to the “DAE-6 Device
Feature Set Offering” on page 3.
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FN7838.2
September 29, 2011