Yamaha RX-Z11 - Manual (Page 156)

Glossary
156
En
■ Dolby Surround
Dolby Surround uses a 4-channel analog recording system to
reproduce realistic and dynamic sound effects: 2 front left and right
channels (stereo), a center channel for dialog (monaural), and a
surround channel for special sound effects (monaural). The
surround channel reproduces sound within a narrow frequency
range. Dolby Surround is widely used with nearly all video tapes
and laser discs, and in many TV and cable broadcasts as well. The
Dolby Pro Logic decoder built into this unit employs a digital signal
processing system that automatically stabilizes the volume on each
channel to enhance moving sound effects and directionality.
■ Dolby TrueHD
Dolby TrueHD is an advanced lossless audio technology developed
for high-definition disc-based media including HD DVD and Blu-
ray Disc. Selected as a mandatory audio standard for HD DVD and
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. 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.
■ DSD
Direct Stream Digital (DSD) technology stores audio signals on
digital storage media, such as Super Audio CDs. Using DSD,
signals are stored as single bit values at a high-frequency sampling
rate of 2.8224 MHz, while noise shaping and oversampling are used
to reduce distortion, a common occurrence with very high
quantization of audio signals. Due to the high sampling rate, better
audio quality can be achieved than that offered by the PCM format
used for normal audio CDs.
■ 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, and is
now rapidly gaining popularity in movie theaters around the world.
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.
■ DTS Express
DTS Express is an advanced audio technology for the optional
feature on Blu-ray Disc or HD DVD, which offers high-quality, low
bit rate audio optimized for network streaming, and Internet
applications. DTS Express is used for the Secondary Audio feature
of Blu-ray Disc or the Sub Audio feature of HD DVD. These
features deliver audio commentaries (for example, the additional
commentaries made by the director of a film) on demand by the
users via the Internet, etc. DTS Express signals are mixed down
with the main audio stream on the player component, and the
component sends the mixed audio stream to the AV receivers/
amplifiers via digital coaxial, digital optical, or analog connections.
■ DTS-HD Master Audio
DTS-HD Master Audio is an advanced lossless audio technology
developed for high-definition disc-based media including HD DVD
and Blu-ray Disc. Selected as a mandatory audio standard for both
HD DVD and 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 for
HD DVD and up to 24.5 Mbps for Blu-ray Disc, DTS-HD Master
Audio can carry up to 7.1 discrete channels of 24-bit/96 kHz audio
simultaneously. Supported by HDMI version 1.3 and designed for
the optical disc players and AV receivers/amplifiers of the future,
DTS-HD Master Audio also remains fully compatible with the
existing multichannel audio systems that incorporate DTS Digital
Surround.
■ DTS-HD High Resolution Audio
DTS-HD High Resolution Audio is an high resolution audio
technology developed for high-definition disc-based media
including HD DVD and Blu-ray Disc. Selected as an optional audio
standard for both HD DVD and Blu-ray Disc, this technology
delivers sound that is virtually indistinguishable from the original,
offering a high-definition home theater experience. Supporting
bitrates up to 3.0 Mbps for HD DVD and 6.0 Mbps for Blu-ray
Disc, DTS-HD High Resolution Audio can carry up to 7.1 discrete
channels of 24-bit/96 kHz audio simultaneously. Supported by
HDMI version 1.3 and designed for the optical disc players and AV
receivers/amplifiers of the future, DTS-HD High Resolution Audio
also remains fully compatible with the existing multichannel audio
systems that incorporate DTS Digital Surround.
■ HDMI
HDMI (High-Definition Multimedia Interface) is the first industry-
supported, uncompressed, all-digital audio/video interface.
Providing an interface between any source (such as a set-top box or
AV receiver) and an audio/video monitor (such as a digital
television), HDMI supports standard, enhanced or high-definition
video as well as multi-channel digital audio using a single cable.
HDMI transmits all ATSC HDTV standards and supports 8-channel
digital audio, with bandwidth to spare to accommodate future
enhancements and requirements.
When used in combination with HDCP (High-bandwidth Digital
Content Protection), HDMI provides a secure audio/video interface
that meets the security requirements of content providers and
system operators. For further information on HDMI, visit the HDMI
website at “http://www.hdmi.org/”.