Page 152 - DCAP303_MULTIMEDIA_SYSTEMS

Multimedia Systems

notes 9.1.3 video processing software
There are times you need to convert certain formats of video, or even audio, into another format.
For example, you may want to transform a .wmv file into mpeg or an .avi to .wmv. These are
the most common digital video formats today. And video processing software is the one that
you are going to need if you need to do jobs like these. An mpeg format cannot be used for
media streaming. Therefore, you need to change its format to what is compatible. Some video
processing software can even clean and master a video file so that the output format has quality
that is comparable to the original.
9.1.4 video encoder software

Depending upon the type of video editing software you use, you are going to need one or more
video encoding and decoding software. The main job of these encoders and decoders is for
video compression. Video encoder software does not standalone. More often than not, they are
plug-ins that the video editing software needs to do a particular job. As such, it installs inside
a compatible editor. The editor and the encoder are sold separately because usually, a different
group of programmers have created one and the other. And so for you to use the software, you
have got to acquire the necessary rights first.
9.1.5 Multimedia player

You cannot possibly enjoy your video if you do not have multimedia player or viewer software.
The main purpose of this software is to play back the movie you have created. They are multimedia
players which mean they can play video files of all types and formats. It can also play the audio
that comes with the video, including any other special effects you have in it. Some players can
also process video files in batches for continuous play.

These are the different digital video tools that you need to make that perfect home video. And
these are the same programs that professionals use. So, if you want to create videos that are as
good as what expert movie makers create, start by getting these necessary tools today!

self assessment
Choose the correct answer:

1. The illusion of movement usually requires around ......... frames per minute.
( a) 12 (b) 15
( c) 10 (d) 8
2. .................... is used to add captions and background music to your video file.
( a) Video emission software
( b) Video editing software
( c) Video formatting software
( d) Video editing software
3. Video encoder software does stand alone.
( a) True (b) False

9.2 Multimedia authoring tools

A multimedia production needs to be interactive. We will try to answer the question how
multimedia production can be made interactive. Several tools are used for developing interactive
multimedia. These are:

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