Video Technologies
Perry C. Hanavan, Au.D.
Traditional Technologies
• Broadcast Video—TV (general public)– Commercial (ABC, CBS, NBS, etc.)– PBS– Instructional television (ITV)
• Narrowcast Video (select audience)– Instructional Television Fixed Service (ITFS)
• Distributed via closed-circuit TV
Cablecast/ Satellite Video
• Delivered by local cable companies to schools
• CNN, Discovery Channel, and Learning Channel, etc. can be delivered to classrooms
Recorded Video
• VCR on VHS format• Camcorders can be used to record events
or activities– Camcorders increasingly small and less
expensive
Basics of Digital Video• Compression technologies
– AVI, MPEG, QT, etc.• Digital Video Disc (DVD)• Digital Video Card
– Able to convert analog to digital• Digital Video Editing
– iMovie• Internet Video Broadcasts
– Streaming video– Live Cams (www.earthcam.com)– Internet Meetings
Video Editors
Instruction & Videos
• Slow-motion and time lapsed videos provide unique learning opportunities
• Storyboarding• Can support teaching and learning
The Future?
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