Lfe 0.1 channel, Neo:6, Neural surround – Yamaha RX-V663 User Manual

Page 126: Pcm (linear pcm), Sampling frequency and number of quantized bits, S-video signal, X.v.color, 22en

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Glossary

■ LFE 0.1 channel

This channel reproduces low-frequency signals. The frequency

range of this channel is 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 5/6 channels

in Dolby Digital or DTS 5.1/6.1-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.

■ Neural Surround

Neural Surround™ represents the latest advancement in surround

technology and has been adopted by XM Satellite Radio for

digital radio broadcast of surround recordings and live events in

surround sound. Neural Surround™ employs psychoacoustic

frequency domain processing which allows delivery of a more

detailed sound stage with superior channel separation and

localization of audio elements. System playback is scalable from

5.1 to 7.1 multi-channel surround playback.

■ 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 fineness 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, while 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 finely the sound level can be

reproduced.

■ S-vIdeo signal

With the S-video signal system, the video signal normally

transmitted using a pin cable is separated and transmitted as the Y

signal for the luminance and the C signal for the chrominance

through the S-video cable. Using the S VIDEO jack eliminates

video signal transmission loss and allows recording and playback

of even more beautiful images.

■ 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 could not be expressed before. 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.

^22En

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