What is Multimedia?.pptx

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Importance of Multimedia in the ClassroomPresented by:Misheck [email protected]+260955418926Using Multimedia in teaching and Learning

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Using Multimedia in teaching and Learning

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OutlineWhat is Multimedia?Elements of multimediaTypes of multimedia devicesFeatures of multimedia systemComponents of multimedia systemWhy use multimedia in the classroom?Effects of multimedia in the classroom.Advantages and Disadvantages of multimedia.Stages in Multimedia Production Types of Digital Video and Movie files extensionsConclusionReference-1-

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The term multimedia is coined from two terms: Multiple and Media. Hence multimedia means using multiple medias to communicate.

Multimedia is the combination of different media elements like text, audio, graphics, video and animations.-2-What is Multimedia?

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Interactive Multimedia is the means to interface/communicate with computer keyboard, mouse, touch screen, on screen buttons, and text entry.-2-Interactive Multimedia?

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-2-Elements of Multimedia?MultimediaVideoTextAudioAnimationGraphics

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Text: Words treated as data by a computer.Hypertext is text which contains links to other texts.A typeface is a family of characters or letters which have similar looks. E.g. Arial-12 points, Times New Roman-14points, Algerian-18 points etc

-2-Elements of Multimedia

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-2-Examples of TextArial Times New RomansAlgerianImpactBauhaus 93BroadwayBrush Script

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VideoThe term video ("video" meaning "I see", from the Latin verb "videre") commonly refers to several storage formats for moving pictures: digital video formats, including Blu-ray Disc, DVD, QuickTime, MPEG-4, analog videotapes, including VHS and Betamax.


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VideoIs the Technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion.-2-Elements of Multimedia

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-2-Examples of Video

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Digital VideoDigital Video: Composed of a series of still image frames and produces the illusion of movement by quickly displaying one frame after another.-2-Elements of Multimedia

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AnimationA simulation of movement created by displaying a series of pictures, or frames.Animation is a visual change over time.


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-2-Examples of Animations

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GraphicsGraphics (from Greek graphikos) are visual presentations on some surface, such as a wall, canvas, computer screen. e.g photographs, drawings, Line Art, graphs, etc.This is an image that is generated by a computer-2-Elements of Multimedia

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ImagesAn image (from Latin imago) is an artifact, for example a two-dimensional picture, that has a similar appearance to some subjectusually a physical object or a person.A digital image is a representation of a two-dimensional image using ones and zeros (binary).-2-Elements of Multimedia

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ImagesComputers store images in form of pixels map known as bitmap. A bitmap is simple matrix of tiny dots which forms an image on the computer screen.A Pixel (short for picture element) is the small dot on the screen.-2-Elements of Multimedia

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-2-Examples of Images

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ClipartThis is art or an image that is made by various artists to fit numerous different categories such as people, animals, school, etc. that can be inserted into your own document-2-Elements of Multimedia

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-2-Examples of ClipArt

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AnanimatedGIF (GraphicsInterchange Format) file: This is a graphic imageon a Web page that moves - for example, a twirling icon or a banner with a hand that waves or letters that magically get larger.


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-2-Examples of Animated GIF

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-2-Examples of Animated GIF

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AudioIn computers, audio is the sound system that comes with or can be added to a computer. An audio file is a record of captured sound that can be played back.-2-Elements of Multimedia

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AudioAudio is sound within the acoustic range available to humans.Sound is the meaningful speech in a language Sound is a sequence of naturally analog signals that are converted to digital signals by the audio card, an analog-to-digital converter (ADC)-2-Elements of Multimedia

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Examples of Audio

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Types of multimedia devices include:Microphones SpeakersDigital Cameras Headphones.ComputersDVD Players LCD ProjectorVideo GamesHome theatersTV-2-Types of Multimedia Devices

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Very High Processing Power.

Multimedia Capable File System

Data Representations/File Formats that support multimedia

Efficient and High Input / Output

Special Operating System

Storage and Memory

Software Tools

Network Support

-2-Features of a Multimedia System

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Capture devices - Video Camera, Video Recorder, - Audio Microphone, Keyboards, mice, graphics tablets, 3D input devices, tactile sensors, VR devices. Digitising/Sampling Hardware Storage Devices -Hard disks, CD-ROMs, -Zip drives, Flash drives, -DVD, etc-2-Components of a Multimedia System

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Communication Networks Intranets, Internets, Ethernet

Computer Systems Multimedia Desktop machines, Workstations, MPEG/VIDEO/DSP Hardware

Display Devices CD-quality speakers, HDTV,SVGA, LCD, TFT, LED monitors, Colour printers etc. -2-Components of a Multimedia System

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Multimedia activities encourage students to work in groups. Express their knowledge in multiple ways. Solve problems, revise their own work, and construct knowledge.Effective collaboration techniques The value of teamwork

-2-Why use multimedia in the classroom?

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The significance of presentation and speaking skillsThe importance of research, planning, and organization skillsThe impact and importance of different mediaTechniques for synthesizing and analyzing complex contentHow to express their ideas creatively-2-Why use multimedia in the classroom?

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Change in Student and Teacher RolesIncreased Motivation and Self EsteemTechnical SkillsAccomplishment of More Complex TasksMore Collaboration with PeersIncreased Use of Outside ResourcesImproved Design Skills/Attention to Audience-2-Effects of Multimedia in the Classroom

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Increases learning effectiveness.Is more appealing over traditional. lecture-based learning methods.Offers significant potential in improving personal communications, education and training efforts.-2-Advantages of Multimedia

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Reduces training costs.Is easy to use.Gains and Holds AttentionIt is integrated and interactive.Multimedia is Entertaining as Well as Educational-2-Advantages of Multimedia

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Tailors information to the individual.Provides high-quality video images & audio.Offers system portability.Frees the teacher from routine tasks.Gathers information about the study results of the student.-2-Advantages of Multimedia

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-2-Disadvantages of MultimediaIt takes time to compile.Technological resources, both hardware and softwareTechnological skills, for both the students and teacherIt is expensive

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-2-Disadvantages of MultimediaNot always easy to configureRequires special hardwareNot always compatibleTime required to plan, design, develop, and evaluate multimedia activities

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-2-Stages in Multimedia ProductionResearch & AnalysisScripting or flowchartingStoryboardingCollection of media elements and construction ProgrammingTesting

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-2-Stages in Multimedia ProductionResearch & AnalysisDuring this stage we need to find out about the audience, their skills, needs and qualifications.

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-2-Stages in Multimedia ProductionScripting or flowchartingScripting or flowcharting means deciding the flow of the multimedia project

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-2-Stages in Multimedia ProductionStoryboardingDuring this stage the actual visualization of the project takes place. The designer decides how each screen will look like, which media elements will be used and where to place them on the screen.

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-2-Stages in Multimedia ProductionCollection of media elements and construction At this stage the designer is ready and starts creating the graphics and other elements to be used in the project.

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-2-Stages in Multimedia ProductionProgrammingAt this stage the media elements are combined together into a final product using software packages like PowerPoint Presentation, macromedia Flash.

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-2-Stages in Multimedia ProductionTestingThis is the final stage of any multimedia project. At this stage we check if all the elements are working as per requirement or not.

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.bmpBitmap ImageUncompressed image File used to store bitmap digital images. .gifGraphical Interchange Format FileCommon for web graphics with small images with text. Uses limited number of colours

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.pngPortable Network GraphicsUsed to store graphics for web images.jpeg / jpgJoint Photographic Expert / Group Image FileCommon image format used by digital cameras

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.psdPhotoshop DocumentImage created by Adobe Photoshop.tifTagged Image File FormatHighly flexible and platform independent format which is widely used today

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.aviAudio Video Interleave FileDeveloped by Microsoft to play videos in windows environment.wmvWindows Media Format File(Windows Media Video)This is a compressed video format for internet streaming applications

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.mpg / .mpegMoving Pictures Expert Group FilePopular video format used for creating movies distributed over internet .movQuick Time Format FileDeveloped by Apple. Files are compressed and are easier to download from the internet

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.rm / ramReal Video File Format(Real Audio Metadata)Combination of audio and video.swf / .flvAdobe Flash Shockwave File(flv-Flash Video File)(swf - Small Web Format)Animated file containing text and images. Created by using Adobe Flash Software

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.mid / . midiMIDI File(Musical Instrument Digital Interface)File containing Music Data.wavWave FileWaveform audio file

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.mp3 / .mpgaMPEG3 Audio File(Motion Pictures Expert Group Layer 3)Compressed audio and music file, mp3 songs or ringtones.mp4MPEG4 Video FileCommonly used for sharing video files on the internet.

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-2-Types of audio, video extensionsFile ExtensionType of FileDescription.m4viTunes Video FileiTunes Video File.asfAdvanced Systems Format FileAdvanced Systems Format File

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-2-Usage of MultimediaEducation and TrainingRecording or broadcasting lectures Using Video Conferencing we can hear an expert speaker from a distant location. Demonstrating surgeries or other techniques that learners may not otherwise have the opportunity to see and later put them in practice.

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-2-Usage of MultimediaRecord students performance to enable feedbackAdvertisementsEntertainmentJournalismEdutainmentAnimations and moviesDesign. Architects and engineers projects

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-2-Applications of MultimediaWorld Wide Web Hypermedia courseware Video conferencing Video-on-demand Interactive TV Groupware Home shopping Games Virtual reality Digital video editing and production systems Multimedia Database systems

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-2-ConclusionMultimedia is the field concerned with the computer-controlled integration of text, graphics, drawings, still and moving images (Video), animation, audio, and any other media where every type of information can be represented, stored, transmitted and processed digitally.

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-2-ConclusionMultimedia system implements multimedia technologies and in turn it is used for enhancing multimedia technology whereas multimedia technology manages both the hardware and software to create and run multimedia system.

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-2-Exercise1. What is multimedia? List the elements of multimediaWhat is typeface and font?Explain how multimedia is used in various fields?List various file formats used for the following files:(a) Audio (b) Image (c) Video5.List the stages in multimedia production

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Questions!!!

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ReferencesDaveHax.comEdward Cheung email: [email protected] Multimedia Systems 28 July, 2003.File formats for Popular PC Software: A Programmers Reference , Jeff Walden (John Wiley & Sons, Inc. 1986)Graphics File Formats , David C. Kay and John R. Levine(Windcrest Books/McGraw-Hill 1995)Graphics File Formats: Reference and Guide , C. Wayne Brown and Barry J. Shepherd (Manning Publications 1994)Halsall, Fred, Multimedia Communications Applications, Networks, Protocols and Standards, Addison-Wesley, 2001.http://graphicssoft.about.com/library/weekly/aa000104e.htmhttp://www.microsoft.comhttp://www.thinkfinity.org/uploadedimageshttp://www.YouTube.comMohd Khairuddin Bin Abd Karim: PowerPoint Presentation Graphics & Multimedia-Basic Components Civil Engineering Dept. Politeknik Sultan Haji Ahmad Shah 25350 Semambu, Kuantan Email: [email protected] File Formats & Conversions , Ralf Kussmann (Abacus 1990)Rao, K.R., Bojkovic, Z.S., Milovanovic, D.A., Multimedia Communication Systems, Techniques, Standards and Networks, Ed., Prentice Hall PTR, 2002.Special Issue on Multimedia Signal Processing, Part One, Proceedings of The IEEE, Vol. 86, No. 5, pp. 749-1024, May 1998.The Graphic File Toolkit: Converting and Using Graphic Files , Steve Rimmer (Addison-Wesley 1994)

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Thank you for your attention!!!

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What is Multimedia?.pptx

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