1. (c) 1998-01 V/2-Com (Verhaart)
Multimedia
Elements & standards
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2. (c) 1998-01 V/2-Com (Verhaart)
M u l t i m e d i a
Objectives
Describe the fundamental elements of multimedia
Text
Graphics
Animation
Audio
Video
Describe current competing multimedia standards
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3. (c) 1998-01 V/2-Com (Verhaart)
T e x t
Printed text may be
Retyped or Scanned
Electronic text
Included with publications
From the internet
Hypertext
Linked text
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4. (c) 1998-01 V/2-Com (Verhaart)
Text - standards
ASCII
Unformatted/most basic
Rich Text Format (RTF)
Formatted/portable
Custom format
Embedded into software
Hypertext
hypertext markup language (html)
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5. (c) 1998-01 V/2-Com (Verhaart)
G r a p h i c s
Bitmaps
Stored in pixels
ClipArt
Pre drawn graphics ** check licensing details
Digitizing pictures
Capture still video using video capture boards
Hyperpictures
Pictures or parts trigger multimedia events.
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6. (c) 1998-01 V/2-Com (Verhaart)
Graphics formats
Bitmap
BMP,
GIF,
JPG (JPEG)
Vector
WMF,
CDR
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7. (c) 1998-01 V/2-Com (Verhaart)
Animation
Object
movement of unchanged text and objects around the screen. (eg. title left)
Frame (Cel)
different frames or screens that are rapidly displayed to simulate motion. (eg. Animated GIF files, morphing)
Vector
Used extensively in “maze” games, and animated videos (eg. Need for speed, Bugs life movie),
also Macromedia flash, VRML
4/15/2019
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8. (c) 1998-01 V/2-Com (Verhaart)
Animation formats
Bitmap
Animated GIF
FLI
Video
MOV, AVI, MPEG
Vector
VRML
Macromedia flash
Quicktime 3.0
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9. (c) 1998-01 V/2-Com (Verhaart)
A u d i o
Waveform
Frequency, amplitude and harmonic content. Samples actual sounds
CD Audio
44,100 samples per second
16 bits allows for 98db
MIDI (Musical instrument Digital interface)
Codes musical notes
Sample wav Click here
Sample mid Click here
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10. (c) 1998-01 V/2-Com (Verhaart)
Audio formats
Waveform
WAV
MPEG, AVI (Video without picture)
MP3
MIDI (Musical instrument Digital interface)
MID
Sample wav Click here
Sample mid Click here
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11. V i d e o Live video feeds Video tape Video disc Digital video
TV channels on the internet
Video tape
Not usually controllable by computer but new recorders are appearing.(Sony)
Video disc
Likely to be replace by CD’s and DVD
Digital video
- Hard disk, CD-ROM or DVD
Hypervideo
video used to trigger other events
Sample video Click here
4/15/2019
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12. Video formats Audio Video Interleave (AVI) Windows MoVie (WMV) MOV
AVI replacement (MP4?)
MOV
Apple quicktime
Motion Picture Experts Group (MPEG)
generic
Sample video Click here
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13. (c) 1998-01 V/2-Com (Verhaart)
Player standards
Windows
Media control interface (MCI)
Designed by Microsoft for Widows
DirectX
Updated MCI introduced 1998.
Apple
Quicktime
Designed for Apple has Windows version
Unix ??
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14. (c) 1998-01 V/2-Com (Verhaart)
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