Emerson EWR20V4 owner manual Glossary

Analog audio

An electrical signal that directly represents sound. Compare this to digital audio which can be an electrical signal, but is an indirect representation of sound. See also Digital audio.

Aspect ratio

The width of a TV screen relative to its height. Conventional TVs are 4:3 (in other words, the screen is almost square); widescreen models are 16:9 (the screen is almost twice as wide as it is high).

Chapter

Just as a book is split up into sev- eral chapters, a title on a DVD disc is usually divided into chap- ters. See also Title.

Component video output

Each signal of luminance(Y) and component(PB/CB, PR/CR) is inde- pendent to output so that you can experience picture color as it is.

CPRM

(Content Protection for Recordable Media)

CPRM is a copy protection sys- tem with scramble system regard- ing the recording of “copy-once” broadcast programs (e.g. some satellite broadcasts).

Digital audio

An indirect representation of sound by numbers. During record- ing, the sound is measured at dis- crete intervals (44, 100 times a second for CD audio) by an ana- log-to-digital converter, generating a stream of numbers. On playback, a digital-to-analog converter gen- erates an analog signal based on these numbers. See also Sampling frequency and Analog audio.

Others

Glossary

Dolby Digital

The system to compress digital sound developed by Dolby Laboratories. It offers you sound of stereo(2ch) or multi-channel audio (up to 5.1ch).

MP3 (MPEG Audio Layer 3)

MP3 is a method of compressing files.You can copy MP3 files on CD-R/RW discs from the comput- er and play the files on this unit.

Finalize

To make DVD discs, which have done recording, possible to play in DVD players.With this unit, it is possible to finalize DVD-R/DVD- RW discs.

PCM

(Pulse Code Modulation)

The most common system of encoding digital audio, found on CDs and DAT. Excellent quality, but requires a lot of data com- pared to formats such as Dolby Digital and MPEG audio. For com- patibility with digital audio recorders (CD, MD and DAT) and AV amplifiers with digital inputs, this unit can convert Dolby Digital and MPEG audio to PCM. See also Digital audio.

Playlist

From this list you can play con- tents of a disc as your desired order or in sequence. Also it is allowed to search a specific scene directly.

Regions code

Regions associate discs and play- ers with particular areas of the world.This unit will only play discs that have compatible region codes.You can find the region code of your unit by looking on the rear panel. Some discs are compatible with more than one region (or all regions).

Sampling frequency

The rate which sound is measured by a specified interval to turn into digital audio data.The numbers of sampling in one second defines as sampling frequency.The higher the rate, the better the sound quality as possible as it is.

SAP

(Secondary Audio Program)

Sub-audio channel which is deliv- ered separately from main-audio channel.This audio channel is used as an alternate in bilingual broad- casting.

S-Video output

It delivers independently each sig- nal of color(C) and luminance(Y) to TV as video signals, so that higher-quality picture will be gained.

Title (DVD only)

A collection of chapters on DVD disc. See also chapter.

Track

Audio CDs use tracks to divide up the content of a disc.The DVD equivalent is called a chapter. See also Chapter.

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