Sony DAV-SR4W Operations Instructions download pdf (Page 94)

94

GB

Album

Section of a music piece or an image on a data

CD containing MP3 audio tracks or JPEG files.

Chapter

Subdivision of a title on a DVD. A title is

composed of several chapters.

Digital Cinema Sound (DCS)

This is the generic name of the surround sound

produced by digital signal processing

technology developed by Sony. Unlike previous

surround sound fields mainly directed at the

reproduction of music, Digital Cinema Sound is

designed specifically for the enjoyment of

movies.

Digital Infrared Audio Transmission

Recent times have been witness to the rapid

spread of DVDs, Digital Broadcasting Satellite

Receiver and other high-quality media. In order

to ensure that the subtle nuances endowed by

these high-quality media would be transmitted

with no accompanying deterioration, Sony

developed a technology called “Digital Infrared

Audio Transmission” for the infrared

transmission of digital audio signals using no

compression, and it introduced it into the DAV-

SR4W.

This technology transfers digital audio signals

using no compression inside the subcarrier

frequency band allocated by the IEC

(International Electronic Committee) and

JEITA (Japan Electronics and Information

Technology Industries Association) for hi-fi

audio transmission applications. (See Fig. 1)

Dolby Digital

This movie theater sound format is more

advanced than Dolby Surround Pro Logic. In

this format, the surround speakers output stereo

sound with an expanded frequency range, and a

subwoofer channel for deep bass is

independently provided. This format is also

called “5.1,” with the subwoofer channel

designated as the 0.1 channel (since it functions

only when a deep bass effect is needed). All six

channels in this format are recorded separately

for superior channel separation. Furthermore,

since all the signals are processed digitally, less

signal degradation occurs.

Dolby Digital EX

An enhanced compatible format of Dolby

Digital 5.1, developed by Dolby Laboratories

and Lucasfilm THX, which adds an extra

surround back channel, and can be used for

6.1(three surround speakers) channel playback,

using matrix encoding.

Dolby Pro Logic II

Dolby Pro Logic II creates five full-bandwidth

output channels from two-channel sources. This

is done using an advanced, high-purity matrix

surround decoder that extracts the spatial

properties of the original recording without

adding any new sounds or tonal colorations.

x Movie mode

The Movie mode is for use with stereo television

shows and all programs encoded in Dolby

Surround. The result is enhanced sound field

directionality that approaches the quality of

discrete 5.1-channel sound.

x Music mode

The Music mode is for use with any stereo music

recordings, and provides a wide and deep sound

space.

Glossary

L

R

5432

6

[MHz]

Analog

transmission

Digital transmission (Digital

infrared Audio Transmission)

Fig. 1 Signal spectrum for digital infrared audio

transmission

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