User guide

Glossary 245
seamlessly adding 2D and 3D graphics that appear to exist originally
when shooting the video clip.
MP3
Abbreviation of MPEG Audio Layer-3. MP3 is an audio compression
technology that produces near CD audio quality at a very small file size,
making it transfer quickly over the Internet.
MPEG-2
A standard for video and audio compression used in products like DVD.
MPEG-4
A video and audio compression format that is commonly used in
mobile devices and video streaming in the Internet that provides high-
quality videos at lower data rates.
NLE
Non-Linear Editing. In the past, conventional editing on a VCR was
necessarily linear because of the need to access clips on a video tape in
order. Computer editing can be done in any order that is convenient.
Noise
Noise may be found in audio and video. In audio, it manifests as
unwanted residual hiss while they are random image specks and dots
onscreen in video. These are electronic interferences that are most
common in analog audio and video.
NTSC/PAL
NTSC is the video standard in North America, Japan, Taiwan, and some
other regions. Its frame rate is 29.97 fps. PAL is common in Europe,
Australia, New Zealand, China, Thailand, and some other Asian places,
which has a frame rate of 25 fps. There are other differences. In the
world of DV and DVD, NTSC has the video resolution of 720 × 480
pixels, while PAL has 720 × 576 pixels.