Yamaha RX-A700 Owner's Manual download pdf (Page 114)

APPENDIX

Glossary

En 114

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.

Sound program information

CINEMA DSP

Since the Dolby Surround and DTS systems were originally designed for

use in movie theaters, their effect is best felt in a theater having many

speakers designed for acoustic effects. Since home conditions, such as

room size, wall material, number of speakers, and so on, can differ so

widely, it is inevitable that there are differences in the sound that is heard.

Based on a wealth of actually measured data, Yamaha CINEMA DSP uses

Yamaha’s original DSP technology to combine Dolby Pro Logic, Dolby

Digital, and DTS systems to provide the audiovisual experience of a movie

theater in the listening room of your own home.

Compressed Music Enhancer

The Compressed Music Enhancer feature of this unit enhances your

listening experience by regenerating the missing harmonics in compression

artifacts. As a result, it compensates for flattened complexity due to the loss

of high-frequency fidelity as well as lack of bass due to the loss of low-

frequency bass, providing improved performance for the overall sound

system.

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.

CINEMA DSP 3D

The actually measured sound field data contain the information of the

height of the sound images. CINEMA DSP 3D feature achieves the

reproduction of the accurate height of the sound images so that it creates

the accurate and intensive stereoscopic sound fields in a listening room.

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 PR 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/.”

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Yamaha RX-A700 Owner's Manual Page 114

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