Sony DAV-SC6 User Manual download pdf (Page 74)

Dolby Surround Pro Logic

As one method of decoding Dolby Surround,

Dolby Surround Pro Logic produces four

channels from two-channel sound. Compared

with the former Dolby Surround system, Dolby

Surround Pro Logic reproduces left-to-right

panning more naturally and localizes sounds

more precisely. To take full advantage of Dolby

Surround Pro Logic, you should have one pair of

surround speakers and a centre speaker. The

surround speakers output monaural sound.

DTS

Digital audio compression technology

developed by Digital Theater Systems, Inc. This

technology conforms to 5.1-channel surround.

This format comprises of stereo rear channels

and a discrete subwoofer channel. DTS provides

the same 5.1 discrete channels of high quality

digital audio. The good channel separation is

realized due to all channel data being recorded

discretely and processed digitaly.

DVD

A disc that contains up to 8 hours of moving

pictures even though its diameter is the same as

a CD.

The data capacity of a single-layer and single-

sided DVD, at 4.7 GB (Giga Byte), is 7 times

that of a CD. Furthermore, the data capacity of a

dual-layer and single-sided DVD is 8.5 GB, a

single-layer and double-sided DVD 9.4 GB, and

a dual-layer and double-sided DVD 17 GB.

The picture data uses the MPEG 2 format, one of

a worldwide standard of digital compression

technology. The picture data is compressed to

about 1/40 of its original size. DVD also uses

variable rate coding technology that processes

allocated data according to the status of the

picture.

The audio data is recorded in Dolby Digital as

well as in PCM, allowing you to enjoy more

realistic audio presence.

Furthermore, various advanced functions such

as the multi-angle, multilingual, and Parental

Control functions are provided with the DVD.

File

Section of a picture on a data CD containing

JPEG image files.

Film based software, Video based

software

DVDs can be classified as Film based or Video

based software. Film based DVDs contain the

same images (24 frames per second) that are

shown at movie theatres. Video based DVDs,

such as television dramas or sit-coms, displays

images at 30 frames (or 60 fields) per second.

Multi-angle function

Various angles of a scene, or viewpoints of the

video camera are recorded on some DVDs.

Multilingual function

Several languages for the sound or subtitles in a

picture are recorded on some DVDs.

Parental Control

A function of the DVD to limit playback of the

disc by the age of the users according to the

limitation level in each country. The limitation

varies from disc to disc; when it is activated,

playback is completely prohibited, violent

scenes are skipped or replaced with other scenes

and so on.

Playback Control (PBC)

Signals encoded on VIDEO CDs (Version 2.0)

to control playback.

By using menu screens recorded on VIDEO

CDs with PBC functions, you can enjoy playing

simple interactive programs, programs with

search functions, and so on.

Region Code

This system is used to protect copyrights. A

region number is allocated on each DVD system

or DVD disc according to the sales region. Each

region code is shown on the system as well as on

the disc packaging. The system can play the

discs that match its region code. The system can

also play discs with the “ ” mark. Even when

the region code is not shown on the DVD, the

region limit may still be activated.

Scene

On a VIDEO CD with PBC (playback control)

functions, the menu screens, moving pictures

and still pictures are divided into sections called

“scenes.”

Super Audio CD

This audio format is based upon the current

audio CD standards but includes a greater

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Sony DAV-SC6 User Manual Page 74

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