Notes
Slide Show
Outline
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The Role of Multimedia on the Web:
>>> How to Create It
  • Randall S. Davis


  • English Language Institute
  • University of Utah


  • Randall’s ESL Cyber Listening Lab
  • www.esl-lab.com


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Objectives
  • Discuss the rationale behind Web-based multimedia, including challenges and benefits
  • Explain the process for planning a multimedia Website
  • Discuss hardware and software options and tips for authoring audio for the Web


  • How to Build a Multimedia Website for Language Study. The Internet TESL Journal, 8(2). Available: http://iteslj.org/Techniques/Davis-MultimediaSite/.


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General Principles of Web-based Materials
  • Potential audience of materials extends beyond the bookstore and the traditional language classroom
  • Ability to modify, adapt, and even discard materials with the times
  • World-wide collaboration with other educators and learners in the refinement of materials
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Technology:
Utopia or Chaos?
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“Let's Put the Pedagogy First: Technology as a Tool to Support Instruction”
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Define your objectives and perform a needs analysis
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Advantages of Web-based Multimedia
  • 24-hour access “anywhere, anytime”
  • Manageable file sizes
  • Platform independence
  • Development speed and content adaptability
  • Interactivity with captions and slide shows
  • Online media libraries for providing remote access for students to classroom materials
  • Wider choice of media players, including those specifically design for language learners


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Challenges of Web-based Multimedia
  • Limited or restricted access to the Internet
  • New technology can overwhelm the user and developer
  • Pages/media not created for all visitors
  • Pages load too slowly due to net congestion of limited bandwidth
  • Issues regarding the distribution of copyright material and protection of your own work


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Development Process
  • Decide on the objectives and goals of the site
  • Survey any existing sites with similar goals
  • Examine the feasibility/limitations of technology
  • Record, edit, and play multimedia content
  • Encode and deliver files on the Internet
  • Select media players
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Recording Environment
  • Minimize noises coming in.
  • Reduce echoes and reverberation.
  • Use a homemade pop screen for noise suppression of aspirated sounds.


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Recording Hardware
  • Sound Card
  • Microphones (uni-directional, omni-directional, built-in, and condenser microphones)
  • Audio-output devices (headphones, internal and external computer speakers, and LCD projector speaker)
  • Insulated audio and video cables
  • Basic microphone mixer


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Low-budget Recording Model
  • Any PC computer with basic sound card or chip.
  • Use system recording utility
  • (Sound Recorder) to create source media files, or encode directly to MP3.
  • Record with an omni- or uni-directional mic, or condensor mic.
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Recording Source Material
  • Avoid background noise and equipment vibrations
  • Select the Best Sampling Settings
  • Adjust volume levels to avoid clipping and distortion
  • Record
  • Save Raw Sound File
  • Edit as Needed
  • Apply Noise Gate
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Audacity - http://audacity.sourceforge.net/
(Windows and Mac)
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NCH Swift Sound - WavePad http://www.nch.com.au/
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Creating Your Homepage
  • Read “Guidelines for Designing a Good Web Site for ESL Students” by Charles Kelly (http://www.aitech.ac.jp/~iteslj/Articles/Kelly-Guidelines.html)


  • Make the site usable by everyone
  • Make your site as fast as possible
  • Make your site easy to use (use technology wisely)
  • Make your site useful
  • Maintain integrity. Be professional



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Why MP3?
  • MP3 is a form of compression - MPEG-1 Audio Layer III, developed by the Moving Picture Experts’ Group (MPEG)
  • Encoding process compresses the audio by filtering out all noise not detectable to the human ear (“destructive” encoding)
  • Standard is not proprietary in nature (i.e., can be played on a wide variety of media players including RealPlayer, Windows Media Player, and QuickTime.