Xoro HSD 8430: GLOSSARY

GLOSSARY: Xoro HSD 8430

GLOSSARY

5.1

5.1-multichannel encoding means, that 5 audio channels with full frequency response are

present (left, center, right, surround left, surround right) plus a subwoofer channel

(represented by the „.1”) providing deep humming frequencies you are used to know from

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modern cinemas. Both Dolby Digital

(including AC3) and DTS

support 5.1-coding and –

decoding.

Aspect ratio: 4:3 and 16:9

Full Frame refers to programs developed for TV display with an aspect ratio of 4:3. Wide-

screen refers to programs developed for screens with an aspect ratio of 16:9.

If a widescreen program is displayed on a 4:3 screen, the picture will have black borders on

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top and bottom.

CD

A CD (Compact Disc) is a metal-coated plastic disc. It has a diameter of 12 cm and a thick-

ness of anout 1,2 mm. It was developed by Sony and Philips in 1985. The advantages are

digital storage of music enabling very natural sound reproduction. Beyond this, the data is

stored more compact, the handling is easy. The long lifetime of the media and the fact that

usage does not decrease quality made the CD the ideal storage media.

In the meantime, 12 different storage media have been developed from the first CD. The

mostly used are CD-DA (Compact Disc - Digital Audio) , CD-ROM (Compact Disc - Read

Only Memory), and the DVD (Digitale Versatile Disc).

One can store about 74 to 80 minutes of music on a CD (-DA). This is equal to 650 to 700

MB. Signal transmission is performed touchless with a laser beam. The CD is being read

from the middle to the outer side. The data or music is recorded in a spiral from the middle

to the outer side.

A CD has pits and lands, the distance is about 1,6 mm. The laser light created by a laser

diode passes different mirrors and prisms and then is focused by a lens to a laser beam.

This laser beam scans the data spiral of the CD. On the pits, the laser beam is reflected in

another direction and is detected by a photocell. The photocell transmits the signal to a mi-

croprocessor which converts the digital data to an audio signal. The rest is done by the

sound system.

Component-Signal

please refer to YUV

Contrast

Means the range of luminance between the brightest and the darkest pixel which can be

displayed.

CVBS

Composite Video Interface. The video signal is transmitted via a single signal line. CVBS

should only be used, if your playback device does not offer other interfaces for connection

with you Xoro TV set, as CVBS due to technical reasons delivers worst quality of all avail-

able interfaces (please also refer to YUV, S-Video, SCART and RGB). The CVBS interface

can easily be identified from the yellow colour of the RCA jack.

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GLOSSARY

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Dolby Digital

5.1

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Dolby Digital

5.1 is a system for transmission and storage of 5.1 channel sound on digital

media as DVD, digital TV and satellite transmission. Different from the codecs Dolby Sur-

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round

and Pro Logic

who do not work with channel separation to encode the surround

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sound in a stereo recording, Dolby Digital

is a discrete system where the different audio

channels keep completely separated during encoding and decoding. Dolby Digital 5.1 is

industry standard for coding of DVD movies with surround sound.

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DSP

Digital Signal Processor. Microprocessor for digital processing of signals. Virtual Surround

for example is created with a DSP.

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DTS

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DTS

is a coding standard similar to Dolby Digital

. DTS Digital Surround

is a multichannel

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surround system from Digital Theater Systems. Similar to Dolby Digital

it uses up to 5.1

channels. Different from Dolby, the data rate can be far above 1 Mbit/sec so the sound is not

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compresses as strong as in Dolby Digital

resulting in a higher sound quality.

The frequency range is from 20Hz to 20kHz at 20Bit, but the subwoofer channels only trans-

mits frequencies below 80Hz. The coding system also is called CAC.

DVD

The DVD (Digital Versatile Disk) was introduced in 1995 and is a storage media with a large

capacity.

While a standard CD can store 650 MB of data, the DVD can store up to 9 GB. Especially

when it comes to video playback, a large storage capacity is important. Beyond its high ca-

pacity, the consumer enjoys high quality video and audio. A DVD can store up to 8 different

audiostreams, so in best case, the movie can be watched in 8 different languages

Photo-CD (JPEG CD)

A Photo-CD is a storage system for image storage on a CD-ROM in a platform independent

multi resolution structure (support of different resolutions and file formats, e.g. JPEG, BMP,

etc). As a single camera film dies not fill a complete CD, more films can be added to the CD

at a later time. A CD-ROM drive must be multisession enabled to load images from a Photo-

CD.

GUI

Graphic User Interface. See OSD

HDCD

Pacific Microsonics has developed a digital audio technology using the full potential of a CD.

The HDCD process (High Definition Compatible Digital) is a patented coding and decoding

process transporting the complete details of a high resolution “master recording” to a CD.

There were several attempts to improve the sound quality of CD’s, but none which could be

compared to HDCD process.

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GLOSSARY

Hosiden-connector

4-pin connector for S-Video connections.

HUE

HUE settings affect the colour balance of the picture.

Interlaced

The picture is created by writing two half pictures with a 1 line set-off on the screen. This is

standard on conventional 50 Hz TV sets.

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Kodak Picture CD

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The KODAK Picture CD

is the ideal media for allround photographers. All pictures are

stored at an excellent resolution of 1024 x 1536 pixel. On the KODAK Picture CD, the im-

ages of your camera film strip are stored. It is not possible to add pictures at a later point of

time.

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Note: There also are „Kodak Foto CDs

“ available. As they have a proprietary file format,

your DVD player cannot playback these media.

LPCM

LPCM stands for: Linear Pulse Code Modulation.

Digital, uncompressed audio recording. Standard on Audio-CDs.

MP3

MPEG 1 Layer 3 Codec, or short MP3, was developed in 1987 by Fraunhofer Institut für

Integrierte Schaltungen and was a revolution in audio compression. In 1992 it became part

of MPEG-1 video format. As MP3 offered high quality audio at incredible small file size, it

became an won standard. With this codec one can compress audio files to about 1 MB /

minute.

MPEG-4

MPEG-4 is a standard used primarily to compress audio and video (AV) digital data. Intro-

duced in late 1998, it is the designation for a group of audio and video coding standards and

related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG). The

uses for the MPEG-4 standard are web (streaming media) and CD distribution, conversation

(videophone), and broadcast television, all of which benefit from compressing the AV

stream. MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related

standards.

By MPEG-4 could be used a lot of different audio compression method. Most popular are

MP3 and AC3.

NTSC

Widespread TV standard, espacially in US and Asia. 525 (480 viewable) Lines and 60 Hz

refresh rate. Describes the way the video information (brightness, color, refresh rate etc.) is

transmitted. Within Europe, this video standard only appears on imported media (like US

DVDs).

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GLOSSARY

OSD

The OSD (On Screen Display) is all the menus and options shown on the screen.

PAL

European TV standard. PAL stands for Phase Alternation Line; refresh rate: 50 Hz, Zeilenau-

flösung: 625 Lines, 576 visible lines. Describes the way the video information (brightness,

colour, refresh rate etc.) is transmitted.

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PBC

PBC stands for playback control. This function can be used to show a menu on Video CD’s

(if contained on the VCD). One can move in this menu with the arrow keys and select the

desired function with “enter”.

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Pro Logic

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Dolby Pro Logic

is a matrix decoder for decoding the four surround sound channels con-

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tained in the stereo track of Dolby Surround

encoded programs (e.g. VHS movies or TV

shows). Dolby Surround is a matrix coding system mixing four channels (left, center, right,

surround) to a stereo track. A Pro Logic decoder separates these four channels during play-

back. Without Pro Logic decoder, the program only has stereo sound

Progressive Scan

Progressive Scan writes a whole picture in one step, while the normal interlaced TV-picture

is composed of two half pictures. It delivers a significally enhanced picture, especially when

used on vide beamers, PC monitors or LCD TV.

RGB

Red Green Blue. Describes the way of transmission and display of video signals. The three

in TV systems used colours red, green and blue are transmitted separately. When used for

connection between playback device and TV set, it delivers a quality similar to

YUV.

S/PDIF

S/PDIF (Sony/Philips Digital Interface) is a digital transmission standard for audio data.

S/PDIF can transmit audio files from one source to another without having to leave the digital

transmission which would result in worse quality.

S-Video

Describes the way video signals are transmitted. With S-Video, luminance and color informa-

tion are transmitted separately. S-Video interface can easily be identified by its 4-ports in a

round connector.

SECAM

French TV standard. It is also used outside France in some Easter European countries.

Refresh rate is the same as in PAL standard (50 Hz). The signal produces 625 TV lines.

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GLOSSARY

Super Video CD (SVCD)

SVCD stands for Super Video CD. SVCD’s are very similar to VCD’s, one can store 35 – 60

minutes of high quality video with up to 2 Stereo audio tracks and 4 different subtitles. All

Xoro DVD players can play SVCD’s.

Video CD(VCD)

VCD stands for "Video Compact Disc". VCD’s are similar to normal CDs. They contain mov-

ies with sound. A VCD can store 74 to 80 minutes of video with stereo sound. For the stor-

age of audio and video, MPEG-1 is used. All Xoro DVD players can play VCD’s.

YPbPr

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please refer to YUV

YUV

Videosignal with separated transmission of color and brightness information. Similar to RGB,

the signal is transmitted via tree separate RCA cables. Also called Component Signal. YUV

delivers best signal quality available with analogue signal transmission

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