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Retooling the captioning workflow for mobile learning
NMC Summer 2006Jeremiah Parry-Hill, Ian Webber
Rochester Institute of Technology
Mobile Learning
• Provides students with a variety of courseware delivery options
• Allows access to media on multiple devices• Makes production process more complex and
expensive
Multivariate Analysis
•Our first attempt at mobile delivery•Exploration to move away from costly CD production•Streamed, Downloaded, on CD and Podcast •Students preferred to download entire lectures for local viewing•http://blade.rit.edu/faculty/smleqa/index.html
Captioning Process
Making multiple formats work•Use batch compress for your video•Reuse caption data•Embedded captions limit your options
Tools
• MacCaption• Magpie• CaptionKeeper• Automatic Sync
Podcast Captioning
• Convert QTText to a .mov
• Add to Selection & Scale
• Reposition caption field
• Export as iPod video
RIT Flash Captioning
• Simplify production process
• Reuse caption data
• Give the viewer a user-friendly interface
• Uses XML to make player extremely flexible
Flash Captioning
• Convert QTText to XML
• Create XML for media
• Select player
• Post file
Future Features?
• Persistent user preferences (size, color, number of caption lines)
• Better scaling of player and captions• Build an authoring tool for creating
caption XML files• Add hooks to display captions from FLV
cue points• Internationalization support
The Future
• Interactive web apps (AJAX, etc.)• Crowdsourcing - group edit• Putting the tools in the hands of the
faculty• More sophisticated search• Voice recognition
Questions?
http://www.rit.edu/~jiwetcJeremiah Parry-Hill [email protected]
Ian Webber [email protected]