Lecture Introduction to multimedia communication



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Lecture 1. Introduction to multimedia communication

  • Soatov Kh.G.

Plan

  • Definition of multimedia
  • Types of multimedia files
  • Definition of multimedia communication
  • Types of multimedia communication
  • Advantages and disadvantages of multimedia
  • Brief history of multimedia
  • The market of multimedia technology and applications
  • 28.01.20
  • MCN

What is multimedia????

  • The word multimedia refers to an integration of multiple media such as visual images, sound, text, video and animation which together can multiply the impact of the message on the other level. Interactive multimedia refers to that when a user becomes a regular viewer of the multimedia project and is allowed to control what and when the elements are delivered is termed as an interactive multimedia.
  • When a structure of linked elements is provided to user through which they can interact then that multimedia becomes hyper media.
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What is multimedia????

  • Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content. Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand-produced material.
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Definition of multimedia

  • Multimedia include
    • Text
    • Picture
    • Sound
    • Full-motion video
    • Interactivity
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 Text:

  • Usually a text file in a computer exists with a variety of fonts with font colors, font styles, font size and can be used for emphasis of the information.
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Audio:

  • A presentation moves to a firm level when a speech or an audio is arranged along with the content.  Audio adds life to the presentation. Media players are very helpful to listen to the audio clips.
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Video:

  • Video clippings can be played back. The recent personal computer video technology with concepts likes MPEG [Moving Pictures Expert Group], Media Players and DVDs can be used.
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Graphics:

  • It can be used for enhancing a presentation. It provides a usual visual impact on the viewer and generally said that “a picture is worth of thousand words”. 
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Animation:

  • Artificial movements of text (or) objects created in virtual environment. Types of animations are divided in to two dimensional animations and three dimensional animations.
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What is multimedia communication????

  • Multimedia communication involves showing information in multiple media formats. Images, video, audio and text all are part of multimedia communication. A single instance of multimedia communication does not have to have all four components.
  • Multimedia communication presents information in an interesting, creative way that helps many different types of learners internalize the data. Infographics are a common example of multimedia communication. These large images are set up like posters and have text, statistics, graphs, charts and images that provide information. Visual learners who need these graphs, charts and images are able to get just as much from the infograph as learners who focus on numbers who, for instance, hone in on the statistics.
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Types of Multimedia Communication

  • Through the proliferation of technology in modern-day homes, people communicate in a variety of ways through multimedia. The term "multimedia" itself can take many forms, but it always relates to the way computers present different elements. Multimedia is common on a variety of kinds of websites and if you use a computer, you use multimedia communication daily.
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Text Communication

  • Text communication encompasses a variety of forms and is one of the most common forms of multimedia communication in a computer user's day-to-day activities. Text communication includes such areas of Internet use as reading a website, reading and writing email messages and instant messaging. Text communication is also the oldest form of multimedia communication, as the first computers displayed text only.
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Image Communication

  • Though images might not seem to be a form of communication in the same way that text is a form of communication, it is a legitimate form of multimedia communication that many users enjoy daily. Examples include browsing an online photo album, opening and viewing images attached to an email and looking at photos that accompany stories on news websites.
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Audio Communication

  • A common form of Web-based multimedia communication is audio communication. This form involves receiving a message through an audio format, such as listening to an online radio station or playing a music file. If you use the Internet to stream a radio station broadcast, for example, you are engaging in a form of audio communication. Audio communication often combines with other forms of multimedia communication. A slideshow, for example, can feature text, images and audio together.
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Video Communication

  • As its name indicates, video communication is a form of multimedia communication through video. It is common on many websites, including YouTube and the websites of television stations. Since high-speed Internet has become common, video communication has increased as users are able to access this form of multimedia communication. Types of video communication include .AVI, MPEG, WMV and QuickTime files.
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Terminology in multimedia

  • Information
    • Facts, ideas, beliefs and stories that when communicated, provide value to the receiver
  • Domain
    • A domain in the multimedia world is a relatively narrow or focused area of information or knowledge
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Terminology in multimedia

  • Interactivity
    • A stimulus-response behavior in which a computer program presents options that the user can select from that lead to further options
  • Application
    • A computer program that serves a specific purpose or use
    • E.g. word processor, spreadsheet
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Terminology in multimedia

  • Content
    • Specific information for a multimedia product in the form of text, pictures, audio, and video
  • Developers
    • Managers, designers, programmers, graphics artists, and other skilled individuals who participate in the development of multimedia products
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Terminology in multimedia

  • User (End user)
    • Individuals or groups who use and/or apply multimedia products for work or play
  • Authoring tools
    • Software programs for developing and delivering multimedia products
    • Including programs for text and graphics editing, audio and video capture and editing
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Terminology in multimedia

  • Product
    • A completed multimedia product that is distributed for use by end user
    • Products are often sold to consumers via commercial outlets
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Advantages of Multimedia

  • The benefits of multimedia include but are not limited to:
  • Training : CBT, CAL.
  • Sales : electronic commerce.
  • Communications: Internet, video conferencing, transmission of digital images, telecommuting.
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Disadvantages of Multimedia

  • Investment costs.
  • Discuss authoring tools.
  • Technical barriers.
  • Social/psychological barriers.
  • Legal problems eg copyright.
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Brief history of multimedia

  • Future…
  • 1990
  • 1980
  • Late 1970s
  • 8-bit processors
  • CD-ROM
  • LAN & WAN
  • 16-bit processors
  • Desktop Computers
  • 32-bit
  • processor
  • World Wide Web
  • Digital Audio and Video
  • Graphical Operating Systems
  • Word Processors, Spreadsheets
  • And Graphics Software
  • Timeline of technology behind the creation of multimedia computers
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Brief history of multimedia

  • Purpose of computer varies as time goes by
    • 1960s: Single-purpose machine that solve complex mathematical problems
    • 1970s: Terminals throughout an organization being used for publishing and information management
    • 1980s: Personal word processors, spreadsheet and even game
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Brief history of multimedia

  • In the mid 1980s and into 1990s, advanced technology brought about:
    • Faster desktop
    • Increased working memory capacity in computers
    • Higher data storage capacity in disk drivers and CD-ROMs
    • Digital audio and video
    • Local and wide area networks that connected users to the world
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Covered Aspects of Multimedia

  • Image/Video
  • Capture
  • Media
  • Server
  • Storage
  • Transmission
  • Compression
  • Processing
  • Audio/Video
  • Presentation
  • Playback
  • Audio/Video
  • Perception/ Playback
  • Audio Information
  • Representation
  • Transmission
  • Audio
  • Capture
  • A/V
  • Playback
  • Image/Video Information
  • Representation
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Investigation of Resource Managements in Distributed Multimedia Systems

  • Multimedia Transport Systems and Network Resource Management (next 3 weeks)
  • Multimedia Buffer Management and Caching
  • Multimedia File Systems and Multimedia Servers
  • Multimedia CPU Management
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Overview - Multimedia Transport

  • Requirements of transport subsystems
      • User/application requirements, Processing and protocol constraints, Mapping to OSI layers
  • Network QoS and Resource Management Concepts
      • Negotiation, translation, admission
      • Traffic shaping, rate control, error control
      • Monitoring, adaptation
  • Case Studies for multimedia transport systems (protocols, network technologies)
      • Streaming Protocols in P2P Overlay Networks
      • Streaming Support in Internet and Internet2
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The market of multimedia technology and applications

  • The reason for CD-ROM as the storage media for multimedia products
    • Storage required for
      • Text: About 500 to 1,000 bytes
      • Picture: About 300k to 1M bytes
      • Audio (1 minute): About 2.5M bytes
      • Video (1 minute): About 10M bytes
    • Storage of CD-ROM: About 650M bytes
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Some popular graphics and multimedia software products

  • Computer-Aided Design (CAD)
  • Desktop Publishing (Professional)
  • Paint/Image Editing (Professional)
  • Video and Audio Editing
  • Multimedia Authoring
  • Web Page Authoring
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Reference

  • Multimedia, Technology and Applications
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  • THANK YOU FOR YOUR ATTENTION!!!!
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