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■ AIR SURROUND XTREME
New Surround technology developed by Yamaha enables
surround with fewer speakers. In comparison to traditional front
surround technology, the AIR SURROUND XTREME provides a
natural surround sound field.
■ Audio and video synchronization
(lip sync)
Lip sync, an abbreviation for lip synchronization, is a technical
term that involves both a problem and a capability of maintaining
audio and video signals synchronized during post-production and
transmission. Whereas the audio and video latency requires
complex end-user adjustments, HDMI version 1.3 incorporates an
automatic audio and video syncing capability that allows devices
to perform this synchronization automatically and accurately
without user interaction.
■ Component video signal
With the component video signal system, the video signal is
separated into the Y signal for the luminance and the P
signals for the chrominance. Color can be reproduced more
faithfully with this system because each of these signals is
independent. The component signal is also called the "color
difference signal" because the luminance signal is subtracted
from the color signal.
■ Composite video signal
With the composite video signal system, the video signal is
composed of three basic elements of a video picture: color,
brightness and synchronization data. A composite video jack on a
video component transmits these three elements combined.
■ Deep Color
Deep Color refers to the use of various color depths in displays,
up from the 24-bit depths in previous versions of the HDMI
specification. This extra bit depth allows HDTVs and other
displays go from millions of colors to billions of colors and
eliminate on-screen color banding for smooth tonal transitions
and subtle gradations between colors. The increased contrast ratio
can represent many times more shades of gray between black and
white. Also Deep Color increases the number of available colors
within the boundaries defined by the RGB or YCbCr color space.
■ Dolby Digital
Dolby Digital is a digital surround sound system that gives you
completely independent multi-channel audio. With 3 front
channels (front L/R and center), and 2 surround stereo channels,
Dolby Digital provides 5 full-range audio channels. With an
additional channel especially for bass effects, called LFE (Low
Frequency Effect), the system has a total of 5.1-channels (LFE is
counted as 0.1 channel). By using 2-channel stereo for the
surround speakers, more accurate moving sound effects and
surround sound environment are possible. The wide dynamic
range from maximum to minimum volume reproduced by the 5
full-range channels and the precise sound orientation generated
using digital sound processing provide listeners with
unprecedented excitement and realism. With this unit, any sound
environment from monaural up to a 5.1-channel configuration can
be freely selected for your enjoyment.
Glossary
■ Dolby Digital Plus
Dolby Digital Plus is an advanced audio technology developed for
high-definition programming and media including HD broadcasts
and Blu-ray Disc. Selected as an optional audio standard for Blu-
ray Disc, this technology delivers multichannel sound with
discrete channel output. Supporting bitrates up to 6.0 Mbps, Dolby
Digital Plus can carry up to 7.1 discreet audio channels
simultaneously. Supported by HDMI version 1.3 and designed for
the optical disc players and AV receivers/amplifiers of the future,
Dolby Digital Plus also remains fully compatible with the existing
multichannel audio systems that incorporate Dolby Digital.
■ Dolby TrueHD
Dolby TrueHD is an advanced lossless audio technology
developed for high-definition disc-based media including Blu-ray
Disc. Selected as an optional audio standard for Blu-ray Disc, this
technology delivers sound that is bit-for-bit identical to the studio
master, offering a high-definition home theater experience.
Supporting bitrates up to 18.0 Mbps, Dolby TrueHD can carry up
to 8 discrete channels of 24-bit/96 kHz audio simultaneously.
and P
B
R
Supported by HDMI version 1.3 and designed for the optical disc
players and AV receivers/amplifiers of the future, Dolby TrueHD
also remains fully compatible with the existing multichannel audio
systems and retains the metadata capability of Dolby Digital,
allowing dialog normalization and dynamic range control.
■ DTS 96/24
DTS 96/24 offers an unprecedented level of audio quality for multi-
channel sound on DVD video, and is fully backward-compatible with
all DTS decoders. "96" refers to a 96 kHz sampling rate compared to
the typical 48 kHz sampling rate. "24" refers to 24-bit word length.
DTS 96/24 offers sound quality transparent to the original 96/24
master, and 96/24 5.1-channel sound with full-quality full-motion
video for music programs and motion picture soundtracks on DVD
video.
■ DTS Digital Surround
DTS digital surround was developed to replace the analog
soundtracks of movies with a 6.1-channel digital sound track.
DTS, Inc. has developed a home theater system so that you can
enjoy the depth of sound and natural spatial representation of DTS
digital surround in your home. This system produces practically
distortion-free 6-channel sound (technically, front left and right,
center, surround left and right, and LFE 0.1 (subwoofer) channels
for a total of 5.1 channels). This unit incorporates a DTS-ES
decoder that enables 6.1-channel reproduction by adding the
surround back channel to the existing 5.1-channel format.
■ FLAC
FLAC (Free Lossless Audio Codec) is an audio compression
format.
FLAC uses lossless compression, allowing the signals to be
compressed with absolutely no loss of the original sound's data.
GLOSSARY
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