Glossary
264
MPEG-4 —
QuickTime 6 provides a new video codec for MPEG-4 video compression. It can
provide an extremely low data rate of 64 kbits/second. Interoperability is the primary goal of
the new codec.
Multicast —
transmitting the same media stream simultaneously to many recipients. Multicast
delivery is similar to traditional television broadcast, in the sense that a stream is made
available at a given time, and viewers may watch the part of that stream that is currently
playing. Multicast delivery results in less network traffic than
Unicast
delivery because the
signal is sent once; viewers watch this signal as it is sent instead of initiating multiple unique
streams. Multicast is not yet supported by many networks.
Multimedia —
media presentations that combine various elements such as sound, graphics
and video.
Multimedia Architecture —
software, including system extensions, plug-ins, servers, etc., that
provides for the creation, storage and playback of synchronized multiple media types.
QuickTime, Real and Windows Media are examples of multimedia architectures.
Multiplexing (a.k.a. Muxing or Interleaving) —
process of combining audio and video data in a
final MPEG file. See
Interleaving
.
Noise —
any part of a signal that contains unwanted randomness. In audio, noise makes the
track have hiss or fuzz. In video, it can make the image grainy, and appear as pixel shimmer or
blotchy areas. Noise generally interferes with compression and should be minimized for good
results.
Noise Reduction —
removing unwanted noise from a signal. For video this is accomplished with
filters such as blur, mean or median. Uniform noise reduction applies one filter equally to each
pixel. Adaptive Noise Reduction applies different filters to different kinds of noise.
NTSC (National Television Standards Committee) —
defines North American broadcast
standards. The term NTSC video refers to the video standard defined by the committee, that
has a specifically limited color gamut, is interlaced and is typically 720x486 pixels, 29.97 fps.
Summary of Contents for 64006-051108-9001 - Discreet Cleaner - Mac
Page 1: ...from discreet November 2000 ...
Page 8: ...Contents viii ...
Page 16: ...Chapter 1 Introduction 8 ...
Page 24: ...Chapter 2 Capture 16 ...
Page 54: ...Chapter 4 Projects 46 ...
Page 68: ...Chapter 5 Settings 60 ...
Page 148: ...Chapter 7 Formats 140 ...
Page 160: ...Chapter 8 Encoding 152 ...
Page 220: ...Chapter 8 Encoding 212 ...
Page 248: ...Chapter 11 Workflow 240 ...
Page 254: ...Chapter 12 Troubleshooting 246 ...
Page 284: ...Glossary 276 ...