08Additional information
Glossary
Analog audio Direct representation of sound by an electrical signal. See also Digital audio.
Aspect ratio The width of a TV screen relative to its height. Conventional TVs are 4:3; widescreen models are 16:9.
Digital audio Indirect representation of sound using numbers. See also Sampling frequency and Analog audio.
Dolby Digital A
1enables far more audio to be stored on a disc than PCM encoding. See also PCM (Pulse Code Modulation).
DRM | DRM (Digital Rights Management) copy | |||
|
|
|
| protection is a technology designed to |
|
|
|
| prevent unauthorized copying by |
|
|
|
| restricting playback, etc. of material on |
|
|
|
| devices other the PC (or other WMA |
|
|
|
| recording equipment) used to record it. |
|
|
|
| For detailed information, please see the |
|
|
|
| instruction manuals or help files that |
|
|
|
| came with your PC (or other WMA |
|
|
|
| recording equipment) and/or software. |
|
|
|
|
|
DTS | A | |||
|
|
|
| developed by Digital Theater Systems |
|
|
|
| that enables far more audio to be stored |
|
|
|
| |
|
|
|
| on a disc than PCM encoding. See also |
|
|
|
| PCM (Pulse Code Modulation). |
|
|
|
| |
|
|
|
|
|
EXIF | A file format developed by Fuji Photo | |||
(Exchangeabl | Film for digital still cameras. Digital | |||
e Image File) | cameras from various manuafcturers | |||
|
|
|
| use this compressed file format which |
|
|
|
| carries date, time and thumbnail |
|
|
|
| information, as well as the picture data. |
|
|
|
|
|
File | A tag added to the end of a filename to | |||
extension | indicate the type of file. For example, | |||
|
|
|
| “.mp3” indicates an MP3 file. |
|
|
|
|
|
ISO 9660 | International standard for the volume | |||
format | and file structure of | |||
|
|
|
|
|
JPEG | A standard file format used for still | |||
|
|
|
| images. JPEG files are identified by the |
|
|
|
| file extension “.jpg”. |
|
|
|
|
|
MP3 | MP3 (MPEG1 audio layer 3) is a |
| compressed stereo audio file format. |
| Files are recognized by their file |
| extension “.mp3”. |
|
|
MPEG audio | An audio format used on Video CDs and |
| some DVD discs. |
|
|
PBC | A system of navigating a Video CD |
(PlayBack | through |
Control) | onto the disc. |
|
|
PCM | Digital audio encoding system found on |
(Pulse Code | CDs. Good quality, but requires a lot of |
Modulation) | data compared to Dolby Digital, DTS |
| and MPEG encoded audio. See also |
| Digital audio. |
|
|
Progressive | All the lines that make up a video |
scan video | picture are updated in one pass |
| (compared to interlace which takes two |
| passes to update the whole picture). |
|
|
Regions | These associate |
| players with particular areas of the |
| world. See |
| page 36 for more information. |
|
|
Sampling | The rate at which sound is measured to |
frequency | be turned into digital audio data. The |
| higher the rate, the better the sound |
| quality. CD is 44.1 kHz; DVD can be up |
| to 96 kHz. See also Digital audio. |
|
|
WMA | WMA is short for Windows Media Audio |
| and refers to an audio compression |
| technology developed by Microsoft |
| Corporation. Files are recognized by |
| their file extension “.wma”. |
| Microsoft, Windows Media, and the |
| Windows logo are trademarks, or |
| registered trademarks of Microsoft |
| Corporation in the United States and/or |
| other countries. |
|
|
Manufactured under license from Dolby Laboratories. “Dolby” and the
“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc.
38
En
