Bedienungsanleitung Yamaha CX-A5000 (Seite 146 von 163) (Englisch)

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APPENDIX ➤ Glossary En 146

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

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.

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/”.

MHL

MHL (Mobile High-definition Link) is the interface standard for high-speed digital video signal transmission

that is developed for mobile devices. This interface transmits both digital audio and digital video signals

from mobile devices (such as smartphones) using a single cable with any loss. As with HDMI, MHL

complies with HDCP (High-bandwidth Digital Content Protection).

S-video signal

With the S-video signal system, the video signal is separated into the Y signal for the luminance and the C

signal for the chrominance through the S-video cable. This technology achieves more accurate color

reproduction than the composite video signal system.

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.

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