|
Netshow:
Microsoft NetShow is a service that runs on Windows NT servers,
delivering the high-quality streaming multimedia to users on corporate
intranets and the Internet. It consists of server and tools components
for delivering audio, video, illustrated audio, and other multimedia
types over the network. NetShow provides the foundation for building
rich, interactive multimedia applications for commerce, distance
learning, news and entertainment delivery, and corporate communications.
Nonlinear:
A term used for editing and the storage of audio, video and data.
Information (footage) is available anywhere on the media (computer disk
or laser disc) almost immediately without having to locate the desired
information in a time linear format.
Nonlinear
editing: Nonlinear distinguishes editing operation from the
"linear" methods used with tape. Nonlinear refers to not
having to edit material in the sequence of the final program and does
not involve copying to make edits. It allows
any part of the edit to be accessed and modified without having to
re-edit or re-copy the material that is already edited and follows that
point. Nonlinear editing is also non-destructive--the
|
video
is not changed but the list of how that video is played back is modified
during editing.
NTSC:
National television system committee. The organization that developed
the analog television standard currently in use in the U.S., Canada, and
Japan. Now generally used to refer to that standard. The NTSC standard
combines blue, red, and green signals modulated as an AM signal with an
FM signal for audio. See also: PAL and SECAM.
NVOD:
Near video on demand. Rapid access to program material on demand
achieved by providing the same program on a number of channels with
staggered start times. Many of the hundreds of TV channels soon to be on
offer will be made up of NVOD services. These are delivered by a
disk-based transmission server.
Nyquist
frequency (Nyquist rate): The lowest sampling
frequency that can be used for analog-to-digital conversion of a signal
without resulting in significant aliasing. Normally, this frequency is
twice the rate of the highest frequency
contained in the signal being sampled.
|
