![](/images/new-backgrounds/1224383/22438393x1.webp)
Glossary
Audio channel for DVD (ch)
Sound is divided into channels based on the sound’s role. Example: 5.1 channel
≥Front speakers— 1 left channel and 1 right channel ≥Centre speaker— 1 channel
≥Surround speakers— 1 left channel and 1 right channel ≥Subwoofer— 1 channel a0.1 (the ratio of bass to the total
amount of sound output)
The following are indicated on the
3/2 .1 ch | (1) | .1: Subwoofer signal | ||||||||
| (not displayed if there is no subwoofer signal) | |||||||||
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| (2) | 0: No surround |
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
| 1: Mono surround |
|
|
|
|
|
|
|
|
|
| 2: Stereo surround (left/right) |
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| (3) | 1: Centre |
|
|
|
|
|
|
|
|
|
2:Front leftiFront right
3:Front leftiFront rightiCentre
Bitstream
Digitized and compressed audio signal
It is decoded by decoders into
Decoder
A device restores the coded audio signals on DVDs to normal. This is called decoding.
Dolby Digital
This is a method of coding digital signals developed by Dolby Laboratories. Apart from stereo
Dolby Pro Logic
A surround system where a
DTS (Digital Theater Systems)
This surround system is used in many movie theaters around the world. There is good separation between the channels, so realistic sound effects are possible.
Film and video
Frame and field
Frames are the still pictures that go together to make a moving picture. A frame is made up of 2 fields.
| = | + |
Frame | Field | Field |
≥A frame still is made up of two alternating fields, so the picture may appear blurred, but overall quality is high.
≥A field still is not blurred, but it has only half the information of a frame still so picture quality is lower.
ID3 tag
An MP3 file has an area in which the
Interlace and progressive output
NTSC, the video signal standard, has 480 interlaced (I) scan lines, whereas progressive scanning uses twice the number of scan lines. This is called 480P.
I/P/B
The DVD recording system shares the data commonly used by screens and uses
A frame recorded independently as reference for commonly used data
This picture is calculated based on past I- or
This picture is calculated by comparing past and future I- and
Linear PCM (pulse code modulation)
These are uncompressed digital signals, similar to those found on CDs.
Multi-session
This means recording data onto a
If data, such as music, is added onto a
Normal audio CD players can play back only the first session. On the other hand, this unit can play back 2 or more sessions.
Playback control (PBC)
If a Video CD has playback control, you can select scenes and information with menus.
In this manual, playing back of the contents of a Video CD using the menu screen is referred to as “Menu play” for Video CD.
Helpful Hints
47