Pioneer VSX-1130-K Reference Manual page 7

Audio Formats & Licenses
Dolby Atmos
®
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Dolby Atmos is a unique new technology for enjoying
the latest surround sound. In a movie theater,
overhead speakers are placed, with a multi-layer
approach to the sound design. On top of the
conventional channel-based soundtrack, object-oriented mixing
is used to layer dynamic sound elements, so regardless of the
theater's speaker setup, independent sound elements can move
around freely in a three-dimensional space. Compared to Dolby
Digital with discrete channels, Dolby Atmos offers seamless
surround sound movement with up to 64 separate speaker
output and a sense of height created by the overhead speakers.
The sound is completely in sync with the screen view, providing
total immersion with unprecedented sound localization and
movement.
This theater sound experience can be reproduced in your home
with Pioneer's Dolby Atmos AV receiver, which not only decodes
Dolby Atmos, but also reproduces Dolby Atmos in an ideal
sound stage fine-tuned by MCACC Pro.
What's more, with MCACC Pro room calibration technology, the
AV receiver not only adjusts the speaker distance, level, and
tones, but also the phase differences for precise sound delivery.
When using Dolby Atmos enabled speakers, MCACC Pro uses the
Bass Management System to bring out the best from Dolby
Atmos. You can fully appreciate the object effects of Dolby
Atmos with more clear and accurately positioned theater sound.
Dolby TrueHD
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Dolby TrueHD delivers sound that is on par with
the original soundtrack, letting you experience
the world of true high-definition entertainment from Blu-ray
Discs. With lossless encoding in up to 18 Mbps bit rate, Dolby
TrueHD creates a synergy with high-definition video to offer you
a home theater experience like never before.
Dolby TrueHD Loudness Management
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Dolby TrueHD Loudness Management frees you from annoying
volume fluctuations that often occur when switching channels,
programs, or input sources, by maintaining a consistent loudness-
level. The function turns on/off during content playback, activating
or deactivating post processing within the decoder. When the
function is turned off, audio is delivered in a lossless mode.
DTS-HD Master Audio
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With DTS-HD Master Audio, you can
enjoy sound that is bit-for-bit identical
to the studio master, at 192 kHz/24-bit
for 5.1 channels and 96 kHz/24-bit for 7.1 channels. DTS-HD
Master Audio delivers audio at extremely high variable bit rates
of 24.5 Mbps, which far exceeds standard DVDs. DTS-HD Master
Audio offers movies and music in the pure, original state as
intended by the artists.
Speaker Layout of a Dolby Atmos Theater
Speaker Layout Example of a Dolby Atmos Home Theater (5.2.2ch)
High Definition Audio Formats
DTS-HD Master Audio and Dolby TrueHD provide sound that is bit-
for-bit identical to the studio master, delivering sound at extremely
high variable bit rates far exceeding standard DVDs.
Comparison of High Definition Audio Formats
Compressed
Lossless
Dolby TrueHD Dolby Digital Plus
DTS-HD
Master Audio High Resolution Audio
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AV RECEIVERS REFERENCE GUIDE
Uncompressed
Lossy
Linear PCM
Uncompressed 48 kHz/
16-bit audio format
similar to CD, but with
DTS-HD
higher sampling
frequencies and
quantization. No
decoding required.