Pioneer VRB1332-A operating instructions Additional information Glossary, Digital *1

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.
Bonus Group	An ‘extra’ group on some DVD-Audio
(DVD-Audio	discs that requires a key number to
only)	access.
Browsable	A feature of some DVD-Audio discs in
pictures	which the user can browse still pictures
(DVD-Audio	recorded on the disc as the audio is
only)	played. See also Slideshow.

Digital audio Indirect representation of sound using numbers. See also Sampling frequency and Analog audio.

Dolby	A multi-channel audio encoding system
Digital*1	developed by Dolby Laboratories that
	enables far more audio to be stored on a

1disc 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*2	A multi-channel audio encoding system
	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 CD-ROM discs.
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 CD/
	Super VCDs and some DVD discs.
Packed PCM	A lossless compression system that
(DVD-Audio	enables more PCM audio to be stored
only)	on a DVD-Audio disc than would
	otherwise be possible.
PBC	A system of navigating a Video CD/
(PlayBack	Super VCD through on-screen menus
Control)	recorded 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 DVD-Video discs and
(DVD-Video	players with particular areas of the
only)	world. See DVD-Video regions on
	page 46 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.

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