Reference Guide

4
Advanced Multi-Channel Stereophonic Philosophy ELITE AV RECEIVERS REFERENCE GUIDE
Advanced Multi-Channel
Stereophonic Philosophy
Audio
Technologies
Video
Technologies
Audio Formats &
Licenses
Sophisticated
Listening Modes
Connectivity Network Features Advanced Control Construction
Audio Scaler
89 87 85
Pioneer’s latest Audio Scaler technology consists of Hi-bit32,
Up-Sampling, and Digital Filter. The Hi-bit32 Audio Processing
improves resolution and density, while the Up-Sampling reduces
noise. Then the Digital Filter creates soft, natural sound and
improves transient response and pre-echo effect. The three
features integrate to upscale all 2-channel audio content up to
176.4 kHz/192 kHz 32-bit playback—176.4 kHz/192 kHz 32-bit by
auto, and selectable from 176.4/192, 88.2/96, 44.1/48 kHz
frequency, 32/24-bit rate by manual setting—offering realistic
reproduction of the content. The features can be controlled on the
Sound Explorer screen of the iControlAV5 app.
Hi-bit32 Audio Processing
The technology works to create undistorted sound,
bringing out the best in the 32-bit DAC. The 32-bit
DAC hardware alone does not reproduce better
sound. Maximum performance is gained
by applying the Hi-bit32 processing to expand signal
resolution, creating more detailed, smooth sound,
closer to the original analog signal. Hi-bit32 Audio
Processing also increases the sound pressure for a tactile listening
experience, and the more channels you have, the more impressive
it becomes. It is effective for multi-channel content on DVD/Blu-
ray Disc as well as CD audio, and works with any disc player.
Up-Sampling (192 kHz/32-bit)
The Up-Sampling feature of the Audio Scaler upgrades the sound
with reduced noise, providing maximum quality audio playback of
up to 192 kHz/32-bit.
Digital Filter
The world’s first digital filter for AV receivers let you
enjoy two types of sound characters by switching the
DAC — “Slow” for soft and warm, and “Sharp” for
solid and tight sound.
24-bit vs 32-bit signal wave form comparison
Actual Effects
1
0
Level Ch1/FS
Time / s
0 2m 4m 6m 8m 10m 12m 14m
-1
Level Ch2/FS
1
0
Level Ch1/FS Level Ch2/FS
Time / s
0 2m 4m 6m 8m 10m 12m 14m
-1
32-bit Extension Processing 24-bit Processing
32-bit resolution
32-bit resolution
24-bit resolution
24-bit resolution
24-bit resolution
input signals
Close up
24-bit sine wave
32-bit DAC +
Hi-bit32
32-bit DAC
Previous
24-bit DAC
DAC + signal
processing
–> closer to
original signal
(in red)
DAC alone
makes no
difference
Previous
24-bit Signals
Red: original analog signals (ideal)
Black: 24-bit digital signals (actual)
Bit expansion processing required to bring out the real
performance from 32-bit DAC.
Effects of Bit Expansion Processing
Digital Filter
Slow
Short
Sharp
Slow
Short
Sharp
Slow Sharp
Input
176.4 kHz/192 kHz
32-bit
176.4 kHz/192 kHz
16-bit/24-bit
88.2 kHz/96 kHz
32-bit
44.1 kHz/48 kHz
32-bit
44.1 kHz/48 kHz
16-bit/24-bit
Output
176.4 kHz/192 kHz
32-bit
SHARP
176.4 kHz/192 kHz
32-bit
SLOW
176.4 kHz/192 kHz
16-bit/24bit
SLOW
176.4 kHz/192 kHz
16-bit/24bit
SHARP
88.2 kHz/96 kHz
32-bit
SLOW
88.2 kHz/96 kHz
32-bit
SHARP
88.2 kHz/96 kHz
16-bit/24-bit
SLOW
88.2 kHz/96 kHz
16-bit/24-bit
SHARP
44.1 kHz/48 kHz
32-bit
SLOW
44.1 kHz/48 kHz
32-bit
SHARP
44.1 kHz/48 kHz
16-bit/24-bit
SLOW
44.1 kHz/48 kHz
16-bit/24-bit
SHARP
88.2 kHz/96 kHz
16-bit/24-bit
2ch only
Auto
Manual
Red
Red + Blue
Audio Scaler Upscaling