Yamaha RX-V471, Руководство пользователя

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DTS-HD Master Audio
DTS-HD Master Audio 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 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.
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. The
frequency is equal to or higher than 100 kHz, with a dynamic range of 120 dB. This unit can transmit
or receive DSD signals via the HDMI jack.
LFE 0.1 channel
This channel reproduces low-frequency bass signals, and has a frequency range from 20 Hz to
120 Hz. This channel is counted as 0.1, because it only enforces a low-frequency range compared
to the full-range reproduced by the other 5-channels in Dolby Digital or DTS 5.1-channel systems.
Neo:6
Neo:6 decodes the conventional 2-channel sources for 6-channel playback by the specific decoder.
It enables playback with the full-range channels with higher separation just like digital discrete signal
playback. There are two modes available: “Music mode” for music sources and “Cinema mode” for
movie sources.
PCM (Linear PCM)
Linear PCM is a signal format under which an analog audio signal is digitized, recorded and
transmitted without using any compression. This is used as a method of recording CDs and DVD
audio. The PCM system uses a technique for sampling the size of the analog signal per very small
unit of time. Standing for “Pulse Code Modulation,” the analog signal is encoded as pulses and then
modulated for recording.
Sampling frequency and number of quantized bits
When digitizing an analog audio signal, the number of times the signal is sampled per second is
called the sampling frequency, while the degree of accuracy when converting the sound level into a
numeric value is called the number of quantized bits. The range of rates that can be played back is
determined based on the sampling rate, whereas the dynamic range representing the sound level
difference is determined by the number of quantized bits. In principle, the higher the sampling
frequency, the wider the range of frequencies that can be played back, and the higher the number of
quantized bits, the more accurately the sound level can be reproduced.
SILENT CINEMA
Yamaha has developed a natural, realistic sound effect DSP algorithm for headphones. Parameters
for headphones have been set for each sound program, so that accurate representations of all the
sound programs can be enjoyed on headphones.
Virtual CINEMA DSP
Yamaha has developed a Virtual CINEMA DSP algorithm that allows you to enjoy DSP surround
effects even without any surround speakers, by using virtual surround speakers. It is even possible
to enjoy Virtual CINEMA DSP using a minimal two-speaker system that does not include a center
speaker.
Video information
Component video signal
With the component video signal system, the video signal is separated into the Y signal for
luminance and the P
B
and P
R
signals for 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. A monitor
with component input jacks is required in order to output component signals.
Composite video signal
With the composite video signal system, the video signal comprises the 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
increase 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. Additionally, Deep Color increases the
number of available colors within the boundaries defined by the RGB or YCbCr color space.
HDMI
HDMI (High-Definition Multimedia Interface) is the first industry supported, uncompressed, all-digital
audio/video interface. Providing an interface between any sources (such as set-top boxes or AV
receivers) and audio/video monitors (such as digital televisions), HDMI supports standard,
enhanced or high-definition video as well as multichannel 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/.”
“x.v.Color”
A color space standard supported by HDMI version 1.3. It is a more extensive color space than
sRGB, and allows the expression of colors that were not hitherto possible. While remaining
compatible with the color gamut of sRGB standards, “x.v.Color” expands the color space, and can
thus produce more vivid, natural images. It is particularly effective for still pictures and computer
graphics.