JVC XV-DDV1SL, LET0239-001A manual Glossary

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Glossary

Aspect ratio

A ratio which defines the shape of the rectangular picture on a TV. It is the width of the picture relative to the height. A conventional TV picture is 4:3 in aspect ratio.

Bitstream

The digital format of multichannel audio data (e.g., 5.1- channel) before it is decoded into its various channels.

Chapter/title

Chapter is the smallest division and title is the largest division on DVD Video. A chapter is a division of a title and similar to a track for VCD or CD.

Dolby Digital (AC3)

A six-channel system consisting of left, centre, right, left rear, right rear and LFE (Low-Frequency Effect channel, for use with a subwoofer) channels. All processing is done in the digital domain. Not all Dolby Digital discs contain six (5.1) channels.

Dolby Surround/Dolby Pro Logic

Dolby Surround records four channels of front and rear audio in two channels in a way that allows a decoder to recover the original four channels for playback. Because the audio is recorded in two channels, it can be played back naturally by a two-channel stereo system.

Dolby Pro Logic introduces directional circuits in decoder-side processing (increasing the level of specific channels and lowering the level of silent channels) for greater spatial perspective, and adds a centre speaker used primarily for dialogue. The result is enhanced channel separation.

DTS

A digital surround audio encoding format configured with six (5.1) channels, similar to Dolby Digital. DTS stands for Digital Theatre Systems.

Not all DTS discs contain six (5.1) channels of information.

Dynamic range

The difference between the loudest and softest sounds.

JPEG

A popular file format for still image compression and storage.

JPEG stands for Joint Photographic Experts Group. There are three sub-types of the JPEG format as follows.

•Baseline JPEG: used for digital cameras, the web, etc.

•Progressive JPEG: used for the web

•Lossless JPEG: an old type, rarely used now

Linear PCM

PCM stands for “pulse code modulation.” Linear PCM is the usual method for digitally encoding audio without compression, and is used for the audio tracks on DVD Video discs, CDs, etc.

MP3

MP3 is an audio data compression format, which stands for MPEG-1 Audio Layer 3. Using MP3, you can achieve a data reduction of about 1:10 compared to a conventional CD.

MPEG

A family of Standards for compressing visual signals. “MPEG” standards include MPEG-1, MPEG-2 and MPEG-

4.Video CD is based on MPEG-1, while DVD is based on MPEG-2. MPEG stands for Moving Picture Experts Group.

• This is also used for compressing audio signals (ex. MP3).

MPEG Multichannel

This feature expands the 5.1 channel audio format recorded in the disc to a 7.1 channel format. The further expansion of the 5.1 channel audio makes it easy for you to reproduce the movie theatre experience in your own home.

NICAM

Broadcast providing stereo, FM sound, or bilingual programmes. The TV tuner built in this unit can receive these NICAM signals.

NTSC (National television system committee)

A black and white and colour television system format used in the U.S.A., Canada, Mexico and Japan.

PAL (Phase Alternation by Line)

A colour television system format used extensively in Western Europe.

PBC

PBC stands for “Playback control” and is a method of controlling disc play for Video CDs (VCD). You are able to interact with the disc through menus.

RGB

An abbreviation for Red, Green, and Blue. Colour monitors and colour television sets display different hues by mixing these three colours.

Track

The smallest division on SVCD, Video CD and Audio CD discs.