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Yamaha RX-V679 Seite 135

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Sampling frequency/Quantization bit
Sampling frequency and quantization bits indicate the quantity of information when an analog audio signal
is digitized. These values are noted as in the following example: “48 kHz/24-bit”.
• Sampling frequency
Sampling frequency (the number of times the signal is sampled per second) is called the sampling rate.
When the sampling frequency is higher, the range of frequencies that can be played back are wider.
• Quantization bit
The number of quantization bits indicate the degree of accuracy when converting the sound level into a
numeric value. When the number of quantized bits is higher, the expression of the sound level is more
accurate.
WAV
Windows standard audio file format, which defines the method of recording the digital data obtained by
converting audio signals. By default, the PCM method (no compression) is used, but you can also use other
compression methods.
WMA (Windows Media Audio)
One of the compressed digital audio formats developed by Microsoft Corporation. With psychoacoustic
technologies, this compression method achieves a high compression rate. Reportedly, it is capable of
compressing data quantity by about 1/20 maintaining a certain level of audio quality.
■ Others
Bi-amplification connection (Bi-amp)
A bi-amplification connection uses two amplifiers for a speaker. When you use the bi-amplification
connection, the unit drives the tweeter and woofer in a speaker with the discrete amplifiers. As a
consequence, the tweeter and woofer provide clear audio signal without the interference.
LFE (Low Frequency Effects) 0.1 channel
This channel reproduces low-frequency bass signals and has a frequency range from 20 Hz to 120 Hz. This
channel is added to the channels for all bands with Dolby Digital or DTS to enhance low frequency audio
effects. This channel is labeled 0.1 because it is limited to only low frequency audio.
Lip sync
Video output sometimes lags behind audio output due to the complexity of signal processing caused by an
increase in video signal capacity. Lip sync is a technique for automatically correcting the timing lag
between audio and video output.
HDMI and video information
Component video signal
With the component video signal system, the video signal is separated into the Y signal for luminance and
the Pb and Pr signals for chrominance. Color can be reproduced more faithfully with this system because
each of these signals is independent.
Composite video signal
With the composite video signal system, color, brightness, and synchronization data signals are combined
and transmitted with a single cable.
Deep Color
Deep Color is a technology that HDMI specification supports. Deep Color increases the number of available
colors within the boundaries defined by the RGB or YCbCr color space. Conventional color systems
process the color using 8 bits. Deep Color processes the color with 10, 12, or 16 bits. This technology
allows HDTVs and other displays to increase from millions of colors to billions of colors and eliminate
on-screen color banding for smooth tonal transitions and subtle gradations between colors.
HDCP
HDCP (High-bandwidth Digital Content Protection) is a digital copy protection form that prevents copying of
digital contents as it travels across connections (such as HDMI).
HDMI
HDMI (High-Definition Multimedia Interface) is the world-wide standard interface for digital audio/video
signal transmission. This interface transmits both digital audio and digital video signals using a single cable
without any loss. HDMI complies with HDCP (High-bandwidth Digital Content Protection) and provides a
secure audio/video interface. For further information on HDMI, visit the HDMI website at
“http://www.hdmi.org/”.
x.v.Color
“x.v.Color” is a technology that the HDMI specification supports. 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 thus can produce more vivid,
natural images.
Network information
SSID
SSID (Service Set Identifier) is a name that identifies a particular wireless LAN access point.
Wi-Fi
Wi-Fi (Wireless Fidelity) is a technology that allows an electronic device to exchange data or connect to the
Internet wirelessly using radio waves. Wi-Fi offers the advantage of eliminating the complexity of making
connections with network cables by using wireless connection. Only products that complete Wi-Fi Alliance
interoperability tests can carry the “Wi-Fi Certified” trademark.
WPS
WPS (Wi-Fi Protected Setup) is a standard established by the Wi-Fi Alliance, which allows easy
establishment of a wireless home network.
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