Pioneer DV58AV_KU_EN operating instructions Glossary, Aspect ratio

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 discs that
(DVD-Audio only)	requires a key number to access.
Browsable pictures	A feature of some DVD-Audio discs in which the user
(DVD-Audio only)	can browse still pictures recorded on the disc as the
	audio is played.
Digital audio	Indirect representation of sound using numbers. See
	also Sampling frequency and Analog audio.
DivX	DivX is a media technology created by DivX, Inc. DivX
	media files contain not only video but also include
	advanced media features like menus, subtitles, and
	alternate audiotracks.
Dolby Digital	A multi-channel 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	DRM (digital rights management) copy protection is
	a technology designed to prevent unauthorized
	copying by restricting playback, etc. of compressed
	audio files on devices other than the PC (or other
	recording equipment) used to record it. For detailed
	information, please see the instruction manuals or
	help files that came with your PC and/or software.
DTS	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).
DSD	The Digital Audio encoding system found on SACDs,
(Direct Stream Digital)	that expresses the audio signals by the pulse density
	of one bit data.
EXIF (Exchangeable	A file format developed by FUJIFILM for digital still
Image File)	cameras. Digital cameras from various
	manufacturers use this compressed file format which
	carries date, time and thumbnail information, as well
	as the picture data.
File extension	A tag added to the end of a filename to indicate the
	type of file. For example, “.mp3” indicates an MP3 file.
HDMI	HDMI (High-Definition Multimedia Interface) is a
	high-speed digital interface which has the capability
	to support standard, enhanced, or high-definition
	video plus standard to multi-channel surround-sound
	audio on a single digital connection. HDMI features
	include uncompressed digital video, a bandwidth of
	up to 5 gigabytes per second and communication
	between the AV source and AV devices such as DTVs.
ISO 9660 format	International standard for the volume 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-4 AAC	MPEG-4 AAC is a compressed stereo audio file
	format. Files are recognized by the extension “.m4a”.
	Note that some files purchased with copyright
	protection (such as files from the iTunes store) may
	not playback.

MPEG audio An audio format used on Video CDs and some DVD 08

discs.

Packed PCM (DVD-Audio	A lossless compression system that enables more
only)	PCM audio to be stored on a DVD-Audio disc than
	would otherwise be possible.
PBC	A system of navigating a Video CD through on-screen
(PlayBack Control)	menus recorded onto the disc.
PCM	Digital audio encoding system found on CDs. Good
(Pulse Code Modulation)	quality, but requires a lot of data compared to Dolby
	Digital, DTS and MPEG encoded audio. See also
	Digital audio.
Progressive scan video	All the lines that make up a 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 players with
(DVD-Video only)	particular areas of the world. See DVD-Video regions
	on page 41 for more information.
Sampling frequency	The rate at which sound is measured to 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.
Super Audio CD (SACD)	Super Audio CD is a high quality audio disc format
	that can accommodate high sampling rate stereo
	and multi-channel audio, as well as conventional CD
	audio all on the same disc.
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”.
WMV	WMV is an acronym for Windows Media Video and
	refers to a video compression technology developed
	by Microsoft Corporation. Files are recognized by the
	file extension “.wmv”.

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