video technologies

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?