Pioneer Stereo System User Manual page 19

High-Performance Devices for
Superior Sound Quality
Sound Retriever
Every Pioneer Elite A/V receiver comes with the newly-
developed Sound Retriever, which significantly improves the
sound of compressed audio — such as WMA, MP3, and
AAC — to the level of CD sound. Sound Retriever creates
new signals to restore the minute details left out during the
compression process. This technology also enhances the audio
quality of XM Radio.
Sound Retriever Restoration Image
Restoration of lost music cadence
Sound Retriever ON
CD sound Compressed Restored
sound sound
Time Time Time
Restoration of lost music cadence
Sound Retriever ON
Compressed Restored
CD sound
sound sound
Low Middle High Frequency Low Middle High Frequency Low Middle High Frequency
Short-Time Frequency Spectrum
Sound Retriever OFF Sound Retriever ON
Ch.1 Ch.1
Amp [dB] Amp [dB]
10.0 10.0
-30.0 -30.0
100 100
5ms
1k 1k
Frequency [Hz] 10k Frequency [Hz] 10k
0.0ms 0.0ms
Flat sound with little frequency response Frequency response changes in short
change time (minute details are restored).
32-bit Digital Processing by "The 3rd-Generation
SHARC ® Processor" from Analog Devices, Inc. and
48-bit processing DSP from Freescale, Inc.
(VSX-84TXSi/VSX-82TXS/VSX-81TXV)
The VSX-84TXSi, VSX-82TXS, and
VSX-81TXV incorporate "The 3rd
Generation SHARC Processor" from
®
Analog Devices, Inc., which is highly
integrated to be used for audio equipment.
The latest device boasts significantly
improved performance over the previous "SHARC Melody
Ultra", a high-performance 32-bit DSP boasting dual
processing capability. The 3rd-generation DSP delivers twice
the performance and half the power consumption of the
previous device.
The units also feature the latest Freescale DSP with
about double the precision of conventional DSPs, which
permits 48-bit processing.
The combination of the high-performance DSPs has
enabled true 32-bit processing, permitting optimum sound
quality, compatibility with all the latest surround formats, and
the highest possible decoding capability.
*"SHARC" and "SHARC Melody" are registered trademarks of Analog Devices Inc.
Ultra Digital Core Engine 2
(VSX-84TXSi/VSX-82TXS/VSX-81TXV)
The VSX-84TXSi, VSX-82TXS, and VSX-81TXV benefit from
powerful, state-of-the-art Freescale and Analog Devices
processors. Both devices are used for pro audio gear for their
exceptional performance.
The new Elite A/V receivers come with 32-bit floating
point 3rd-Generation SHARC processor and Freescale 48-bit-
®
processing processor.
With optimum processing power and decoding
technology enabled by the Pioneer-exclusive "Ultra Digital
Core Engine 2" design, the VSX-84TXSi, VSX-82TXS, and
VSX-81TXV provide 96 kHz/24-bit superior-quality processing
for the THX Select2 specification, DTS 96/24, DTS NEO:6,
and Dolby Pro Logic IIx decoding, and multi-channel sound
compensation (including Phase Control and Standing Wave
Control).
Advanced Direct Energy Power Amplifier — Designed
by Pioneer for Optimum Sound Quality
Power amplification in all seven channels is performed by
originally-designed Advanced Direct Energy Power Amplifier,
featuring minimum energy loss and minimum interference
between circuits. These features combine to deliver high-quality
sound that is close to the original.
The device features "low-impedance, high-current"
design, which minimizes the impedance at the final output
5ms
stage. This effectively reduces the loss of the signals.
The advanced amplifier also reduces the electric/magnetic
interference from the final output stage which significantly
affects the sound quality. This is made possible by the compact
design of the circuit — with the minimum size of the loop —
for the final output stage.
What's more, the device features a new temperature
compensation function for bias circuitry. Temperature of the
output circuit is subject to change due to the speaker-driving
current. The temperature fluctuations cause bias point
deviation, which lowers the sound quality. The power amplifier
for the new Elite A/V receivers effectively compensates for the
fluctuations to minimize the bias point deviation.
®
36
Conventional Amp Pioneer's Direct Energy Power
Amplifier with Minimum Size of
the Loop on the Output Circuit
Electric/
Magnetic Interference
Power Supply (+)
Final Output Stage
Electric /
Magnetic Interference
Final Output Stage
Power Supply (-)
Temperature Compensation System
Conventional Units Pioneer Elite A/V Receivers
Fluctuations of output circuit temperature Bias point deviation is minimized by effective
cause bias point deviation. temperature fluctuation compensations.
Innovations in Construction and
Materials
3-D Space Frame Construction
(VSX-84TXSi/VSX-82TXS)
The 3-D Space Frame Construction is developed to clearly
define the mechanical grounding of the chassis and make the
structure rigid enough to support heavy weight. Perfected by
repeated CAE strength analyses and auditions, this technology
allows each part to deliver its maximum performance.
Interference is also reduced by separating and insulating the
power supply, amp, analog circuit, digital circuit, and video
sections from one another.
Symmetrical Power Train Design
The Pioneer Elite A/V receivers each
features power amps for seven channels.
Accurate multi-channel sound
reproduction is possible only when the
operating environment of one channel
is physically identical to that of the
others. Therefore, with the new
Pioneer Elite receivers, power output
devices for the left channels (front,
surround and surround back) are
mounted on the heat sinks symmetrically with respect to those
for the right channels.
Versatile Video Control
Digital Video Converter (VSX-84TXSi/VSX-82TXS)
The Pioneer Elite A/V receivers come with HDMI terminals
and allow conversion of input video signals for output via
HDMI terminal — whether they are input via Composite,
S-Video, or Component terminals — in order to display them
on a compatible monitor or PDP. Conversions to other signals
is also available — from composite to S-Video or Component,
for example.
Digital Video Converter with HDMI Output
HDMI
Component
S-Video
Composite Video
*Availability of Component-to-S-Video/Composite conversion varies depending on the
content.
Pioneer Video Converter (VSX-81TXV/VSX-80TXV)
Pioneer Video Converter features highly flexible conversion of
video signals. It's capable of converting S-video and composite
signals into component video signals, so they appear at the
separate component video terminals. Pioneer's wide-band
converter is even compatible with the 720p (progressive scan)
format (through Component terminals). The Pioneer Elite
A/V receiver comes with a number of monitor outputs that
supply video signals to VCRs, monitors and other video
equipment at the same time.
*The Pioneer Video Converter doesn't change the original picture resolution.
Video Up-Scaling with DCDi by Faroudja
™
(VSX-84TXSi/VSX-82TXS)
In addition to digital video converter, the VSX-84TXSi and
VSX-82TXS can raise the original picture resolution to 480p,
720p, or 1080i. This lets you coordinate with the pixel count of
the connected monitor.
Up-scaling from 480i (interlace) to 480p/720p
(progressive) involves interpolation of additional fields. With
conventional technology, this interpolation often creates jagged
edges along diagonal lines, especially during fast-paced action
like football or hockey. The new Pioneer Elite A/V receivers
overcome this problem by using DCDi ™ (Directional
Correlation De-interlacing) technology. DCDi's special
algorithm fills in the information gaps that cause jaggedness, to
make edges smoother and more natural.
User-Friendly Operation
On-Screen Display
The Pioneer Elite A/V receivers feature simple, well-organized
on-screen menus for the best home theater sound and
customized A/V control via all video terminals, including
component video. Using a handheld remote to interact with
menus on your TV screen, you can assign the digital inputs, set
the crossover point, adjust the time alignment, and do lots
more, simply and easily. The on-screen instructions even help
you recall preprogrammed codes for your remote control*.
*Available with 480i output via HDMI only. Please note some devices don't permit 480i
output via HDMI.
37