Adobe Premiere Elements 8 - Manual (Page 309)

304 USING ADOBE PREMIERE ELEMENTS 8 EDITOR
Glossary
Last updated 8/12/2010
lossy A compression scheme that degrades quality. Lossy algorithms compress digital data by eliminating the data
least sensitive to the human eye, and offer the highest compression rates available.
luminance The effect of the combined values for brightness and contrast.
M
Machinima A method for creating movies that combines traditional filmmaking, animation, and virtual 3D gaming
technology. Machinima is the combined form of “machine/cinema” or “machine/animation.”
markers DVD markers indicate chapters, scenes, and stop points for a DVD menu. In Adobe Premiere Elements,
DVD markers are also called scene markers. Clip markers signify important points within a clip. Timeline markers
indicate scenes, locations for titles, or other significant points within an entire movie. Clip markers and timeline
markers are used for positioning and trimming clips.
mask See “ matte ” on page 304.
matte The transparent area of an image, typically defined by a graphic shape or a bluescreen background. Also called
a mask.
MIDI Musical Instrument Digital Interface. A standard used to share data between electronic music equipment and
computers.
mini-timeline A timeline that appears at the bottom of the Monitor panel when the Sceneline is displayed. (See also
“ timeline ” on page 307.)
MJPEG Motion JPEG. A compression standard used to convert each video frame into a compressed JPEG image.
MJPEG is best suited for broadcast-quality video, and is preferable over MPEG for footage that contains a great deal
of movement. See also “
MPEG ” on page 304.
motion menu A DVD menu that has a moving background image instead of a still image, animated buttons, or both.
MP3 MPEG-1 Audio Layer 3. Both a compression standard and a file format for digital audio.
MPEG Motion Pictures Expert Group. Also, a type of compression and a video format. Unlike JPEG, where individual
frames are compressed, MPEG compression calculates and encodes only the differences between one frame and its
preceding frame.
MPEG-1 Compression standard used to convert analog video for use in digital applications. It was designed to deliver
near-broadcast-quality video through a standard speed CD-ROM. The compression ratio is about 100:1.
MPEG-2 Extension of the MPEG-1 standard. It was designed to meet the requirements of TV broadcast studios.
MPEG-2 is the broadcast-quality video found on DVDs and requires a decoder for playback.
MPEG-3 Developed for HDTV but became obsolete when MPEG-2 was discovered to adequately meet HDTV
requirements. Often confused with MP3.
MPEG-4 Builds on previous MPEG standards, adding support for streaming video and improved compression
schemes. Often used for video podcasting.
N
native editing Refers to editing originally captured clips, both DV and HDV, at their original, uncompressed quality.
neutral colors The range of grays, from black to white, that have no color. For neutral color areas, RGB values are
equal.
noise Distortions of an audio or video signal, usually caused by interference.
noise reduction The reduction of noise during recording or playback.