Pioneer S-DV9, XV-DV9 manual Additional information Glossary, Dolby Digital

Additional information

Glossary

Analog	Direct representation of sound by an
audio	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 multichannel audio encoding system
	developed by Dolby Laboratories that
	enables far more audio to be stored on a
	disc than PCM encoding. See also PCM
	(Pulse Code Modulation).
DRM copy	DRM (digital rights management) copy
protection	protection is a technology designed to
	prevent unauthorized copying by
	restricting playback, etc. of material on
	devices other than 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 multichannel 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).
Dynamic	The difference between the quietest and
range	loudest sounds possible in an audio
	signal.
EXIF	A file format developed by Fuji Photo Film
(Exchangeable	for digital still cameras. Digital cameras
Image File)	from various manufacturers 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 and
format	file structure of CD-ROM discs.

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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 file extension “.mp3”.
MPEG audio	An audio format used on Video CD/Super
	VCDs and some DVD discs.
MPEG video	A video format used on Video CD/Super
	VCDs and some DVD discs.
PBC	A system of navigating a Video CD/Super
(PlayBack	VCD through on-screen menus recorded
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 picture
scan video	are updated in one pass (compared to
	interlace which takes two passes to
	update the whole picture).
Regions	These associate DVD-Video discs and
	players with particular areas of the world.
	See DVD Video regions on page 76 for
	more information.
Sampling	The rate at which sound is measured to be
frequency	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”.

Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double- D symbol are trademarks of Dolby Laboratories.

“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc.

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