lecture notes (sc comp).pptx
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LECTURE NOTES
LECTURE NOTESCOMPUTER SCIENCE
SC025
FUNDAMENTAL OF MULTIMEDIAMAIN MENU1. DEFINITION OF MULTIMEDIA2. MULTIMEDIA ELEMENTS3. MODE OF MULTIMEDIA INTERACTIVITY4. MULTIMEDIA SOFTWARE5. MEDIUM OF DISTRIBUTION
DEFINITION OF MULTIMEDIALEARNING OUTCOMEAt the end of this topic, students shouldbe able to:
1. Define MultimediaDEFINITION OF MULTIMEDIAAny combination of _____, graphics, animation, ______ and video delivered to you by computer or other electronic or digitally manipulated means.An interactive communication process or presentation of information by using a combination of text, audio, graphics, video and/or animation.
MULTIMEDIA ELEMENTSLEARNING OUTCOMESAt the end of this topic, students shouldbe able to:
1. Describe the elements of MultimediaMULTIMEDIA ELEMENTSThe five(5) elements of multimediaGraphicsVideoAnimationStatic elementsDynamic elementsMULTIMEDIA ELEMENTSTextText
combination of alphabets, numbers and symbol
basic element of multimedia
involves the use of text types, sizes, colors and background color
MULTIMEDIA ELEMENTSTextInput Devices for Text
, etc.Hypertext
link through the use of text in a multimedia application
MULTIMEDIA ELEMENTSTextEffective multimedia program should consider:
1. The position of the text on the screen
MULTIMEDIA ELEMENTS
2. Length of the messageTextEffective multimedia program should consider:MULTIMEDIA ELEMENTS
3. Legibility of the textTextEffective multimedia program should consider:MULTIMEDIA ELEMENTSStandard File Format
Example:MULTIMEDIA ELEMENTSGraphicsdigital representation of imagesmake the multimedia application attractive help to illustrate ideas through still picturestwo types of graphics: - Bitmap (paint graphics) - Vector (draw graphics)
Input Devices for Graphics- digital camera, scanner
MULTIMEDIA ELEMENTSGraphicsBitmap Images
real images that can be captured from devices such as cameras or scannersmade up of pixels in a grid
MULTIMEDIA ELEMENTSGraphicsBitmap Images
common bitmap formats include:BMPGIFJPEG/JPGPNGPICT (Macintosh)PCXTIFFeasily convertedrestricted to rectangleminimal support for transparency
MULTIMEDIA ELEMENTSGraphicsVector Graphics
draw on the computer and only required a small amount of memory
common vector formats include:AI (Adobe Illustrator)CDR (CorelDRAW)CMX (Corel Exchange)CGM Computer Graphics MetafileDXF AutoCADWMF Windows Metafile
MULTIMEDIA ELEMENTSGraphicsVector Graphics
scalableresolution independentno backgroundcartoon-likeinappropriate for photo-realistic images
MULTIMEDIA ELEMENTSStandard File FormatExample:
.MULTIMEDIA ELEMENTSVideoVideo
is a product of recording moving images by using a camera or video machineprovides a powerful impact in a multimediaprogram
MULTIMEDIA ELEMENTSVideoWhy Digital Video?
Advantages
MULTIMEDIA ELEMENTSVideoWhy Digital Video?
Disadvantages
MULTIMEDIA ELEMENTSStandard File FormatExample:
MULTIMEDIA ELEMENTSAudioAudio / Sound
use of speech, music and sound effectstwo basic types of audio or sound: analog and digital audioexample of hardware used to enter audio is a microphone
MULTIMEDIA ELEMENTSAudioAnalog Audio
the original sound signalcan record analog audio filespecial audio editors like Audacity can be used to convert analog audio files into digital audio files
MULTIMEDIA ELEMENTSAudioDigital Audio
the digital sampling of the actual sound used in multimedia
MULTIMEDIA ELEMENTSStandard File Format
Example:MULTIMEDIA ELEMENTSAnimation
Animation
a process of making a static image look like it is movingAnimation in multimedia is called Digital Animation. There are two (2) categories: 2D (2 Dimension) and 3D (3 Dimension) animation
MULTIMEDIA ELEMENTSAnimation2D (2 Dimension)
creating movements in basic objects
these objects are put into various situations orpositions and have movement on the screen.
MULTIMEDIA ELEMENTSAnimation3D (3 Dimension)
creating movements to three dimensional (3D) digital objects from photographs
examples of animations: spinning movementand flying across the screen
MULTIMEDIA ELEMENTSStandard File FormatExample:
MODE OF MULTIMEDIA INTERACTIVITYLEARNING OUTCOMESAt the end of this topic, students shouldbe able to:
1. describe the modes of interactivityDefinition of Multimedia InteractivityInteractivity
user can use input devices such as a keyboard, joystick, mouse and touch screen to interact with the multimedia application or programtwo major categories: - linear - non-linear
MODE OF MULTIMEDIA INTERACTIVITYLinear Interactivitydoes not allow the user to have control of the sequence and progress of the multimedia contentsuser is a passive receiver of the multimedia content most of the timecontent is usually arranged in sequence. Example: moviealthough a movie uses a combination of audio, graphics and animations, the user has no control over the sequence of events
MODE OF MULTIMEDIA INTERACTIVITY
Linear InteractivityExample of Linear InteractivityMODE OF MULTIMEDIA INTERACTIVITYNon-Linear InteractivityAllow user to control the sequence and progress of the multimedia contentuser is a active receiver of the multimedia content most of the timeContent not arrange in sequences: eg; websitesuser can control the progress and sequence of the multimedia content by using buttons or links
MODE OF MULTIMEDIA INTERACTIVITYNon-Linear InteractivityExample:
uses tools like hypertext to connect a word or a phrase to another screen
an electronic book with links to another screen is considered as having non-linear multimedia content
Hypermedia is similar to Hypertext; it connects to different media elements such as audio and videoMODE OF MULTIMEDIA INTERACTIVITYNon-Linear Interactivity
Hypertext
HypermediaElectronic BookMODE OF MULTIMEDIA INTERACTIVITY5.4) MULTIMEDIA SOFTWARE5.4MULTIMEDIASOFTWARE5.4.1) Authoring Tools5.4.2) Supportsoftware5.4) MULTIMEDIA SOFTWAREAt the end of this topic, students shouldbe able to:
1. differentiate between multimedia authoring tools based on the metaphor
LEARNING OUTCOMES5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREprogram that helps in writing multimedia applications
enable to create a final application by linking together objects such as a paragraph of text graphic or a video
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREMetaphor
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREMetaphor:
Refer to:
Note: A functional metaphor will assist in enhancing communication between the learner/user with the content being presented5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREMetaphor:
All multimedia authoring tools are based on a metaphor.The metaphor is based on three main characteristics:- the way program sequences events that happen- the way the application is delivered- the way program organizes the different elements5.4.1) Authoring ToolsMULTIMEDIA SOFTWARE
5.4.1) Authoring ToolsThree basic categories of authoring tools based on metaphor:1) Time-Based2)3) Icon-Based
MULTIMEDIA SOFTWARETime Based
The multimedia elements or events are presented and organized along a time linea time line consists of layers which span several framesThis type of tool helps youcoordinate when each multimedia element (text, graphics, audio, video, or animation) plays,the speed at which it plays,and the length of time it remains on the screen.
Flash, Director and Ktoon (support multi platform) are examples of time-based development environment
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREExample (Time Based):
A simple presentation could contain three layers;layer one could contain a picture of a blue skylayer two could contain a picture of a mountainlayer three a picture of a mountain climber5.4.1) Authoring Tools
MULTIMEDIA SOFTWAREIcon Based
provides the multimedia developer with a visual programming approach to sequencing events in the multimedia application
5.4.1) Authoring Tools
MULTIMEDIA SOFTWAREIcon Based
elements and events are organized in a structural framework
5.4.1) Authoring Tools
MULTIMEDIA SOFTWAREIcon Based
users can present visually a logical flow of events by dragging icons from an icon menu and use drag and drop to pick up and place
icons on the presentation page
5.4.1) Authoring Tools
MULTIMEDIA SOFTWAREIcon Based
Represent graphics, audio files, animation, text, movies, and other elements should be played in a logical flow or flow chart
A presentation is built by inserting one object after another
A simple application could contain just three icons: picture, sound and text icon
Authorware and iconAuthor (support multi platform) is example of development environment
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREExample (Icon Based):
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREbased on the idea of page / card stacks containing graphics, audio, video, text and animation
elements and events are organized as pages in a book or a stack of cards
by inserting objects into several pages, a multimedia book is eventually created
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREdeveloper can create transitions between pages and on the objects themselves
examples: ToolBook (use Windows platform), HyperCard and SuperCard (use Macintosh platform) and Impress (open source software).
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREExample (Page/Card Based):
5.4.1) Authoring ToolsMULTIMEDIA SOFTWAREAt the end of this topic, students shouldbe able to:
1. explain different types of support softwareSupport SoftwareLEARNING OUTCOMESMULTIMEDIA SOFTWARESupport Softwaresoftware that can be used to produce multimedia elements
MULTIMEDIA SOFTWARESupport Softwaretext editor is used to edit plain text
Examples of Editing Software:
OpenOffice.org Writer;*.odt Microsoft Word;*.doc, *.docxWordpad*.rtfNotepad*.txt
MULTIMEDIA SOFTWARESupport Softwaregraphic editor can edit images, draw or illustrate pictures or objects
Examples of Editing Software:
GIMP;*.xcfAdobe Photoshop;*.psdCorel Draw*.cdrMicrosoft Paint*.bmp
MULTIMEDIA SOFTWARESupport Softwareanimation editors are used for producing 2D, 3D, special effects and animation for the Web
Examples of Editing Software:
3D Blender;*.blend Adobe Flash;*.swf3D Studio Max;*.max LightWave*.dvs
MULTIMEDIA SOFTWARESupport Softwareaudio editor is used for voice recording or producing music and special sound effects
Examples of Editing Software:
Audacity;*.aupSound Forge;*.wavWavePad;*.dvs
MULTIMEDIA SOFTWARESupport Softwarevideo editor is used to edit video
Examples of Editing Software:
PiTiVi;*.xptvOpenShot;*.ospAdobe Premier;*.ptlFinal Cut Pro;*.fcp
MEDIUM OF DISTRIBUTIONMEDIUMOF DISTRIBUTIONDVD-ROMBD-ROMCD-ROMFLASHDRIVEBROADBAND INTERNETMEDIUM OF DISTRIBUTIONAt the end of this topic, students shouldbe able to:
1. differentiate medium of distributionLEARNING OUTCOMESMEDIUM OF DISTRIBUTIONCD-ROM DiscCD-ROM Discacronym for compact disc-read-only memoryuse laser technology to store itemsusers can read the contents but cannot erase or modify it contentstypical CD holds 650 MB to 1 GB of data, instructions andinformation
MEDIUM OF DISTRIBUTIONDVD-ROM DiscDVD-ROM Discacronym for digital versatile disc-read-only memory or digitalvideo disc-read-only memoryhigh capacity optical disk that user can read but not to write on or erasecapable of storing 4.7 GB to 17 GB of data, depending on the storage techniques used
MEDIUM OF DISTRIBUTIONBD-ROM DiscBD-ROM Discacronym for blu-ray disc-read-only memorya newer, more expensive DVD format with highercapacity and better quality than standard DVDshas storage capacities 0f 100 GB, with expectations ofexceeding 200 GB in the future
MEDIUM OF DISTRIBUTIONFlash driveFlash Drivealso known as Thumb Drivea flash memory storage device that plugs in a USB port oncomputer or mobile deviceconvenient for mobile usersdata transfer: 12MBpsstorage capacity: 512 MB to 100 GB
MEDIUM OF DISTRIBUTIONThe Broadband Internet Broadband Internetrefers to a telecommunications signal of greater bandwidth, in some sense, than another standard or usual signal (the broader the band, the greater the capacity for traffic)Storage capacity: Infinite (limited only by the storage or the number of server)Service Provider : cable modem, DSL, Fixed fireless, WiFi, fiber, radio signal and satelliteBroadband Provider: Maxis, Celcom, Digi, WiMax
SUMMARY1. DEFINITION OF MULTIMEDIA2. MULTIMEDIA ELEMENTS3. MODE OF MULTIMEDIA INTERACTIVITY4. MULTIMEDIA SOFTWARE5. MEDIUM OF DISTRIBUTION