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Video for Internet
Lecture 9
TE 693HBill Duff
Video on the Internet
Streaming - audio/video file is transmitted while being created & converted at receiving point
Bandwidth 28.8 to 56.6 to 128 kbps 150,000 kbps for CD data rates of 3.5 to 6 Mbps (million
bits/second) for DVD
Video on the Internet
Streaming - audio/video file is transmitted while being created & converted at receiving point
Bandwidth 28.8 to 56.6 to 128 kbps 150,000 kbps for CD data rates of 3.5 to 6 Mbps (million
bits/second) for DVD
Video on the Internet
Delays Compression Encoding & Decoding Capturing audio & video
Sound card Video capture card
Video on the Internet
Visual Studio Industry Partner Flash Windows Media Encoder Centra Tegrity Live AVN2000 http://www.vsicam.com/products/avn/avn.html
Quicktime
Course Planning
First question: synch or asynch, that is the question!
Next question: who is my audience?
Next question: how far am I willing to go?
Last question: is it economically sound to teach this way?
Tools
Web CT MIX PowerPoint Broadcast MS Sharepoint Tegrity other
What You Need
Computer Internet Access MS Office Microphone Camera Whiteboard
What You Need
Server Collaboration Software Testing software Assessment software
Capturing Information 2 Methods
Powerpoint Broadcast http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/pptbr2000.asp
Tegrity Web Learner Platform http://www.tegrity.com
Powerpoint BroadcastRequirements Presenter
Windows 98 or later MS Powerpoint 2000 or 2002 IE 4.0 or better Fast processor – Pentium III, 700MHz + Video camera (USB) or video card
w/others Microphone – wireless is better
Powerpoint Broadcast Requirements Viewer
Microsoft Windows Media Player Internet Explorer 4.0 or better Computer with Sound Card
Powerpoint Broadcasting
Open Ppt with pre-made slides Go To Slide Show
Online Broadcast Set Up and Schedule
Click “Set Up & schedule new broadcast”
Fill in description, speaker, etc Click on “Broadcast Settings”
Powerpoint BroadcastClick on “Send Audio” and/or “Send
Video” Click on “Record Show and save here”
(leave blank to be able to move subdirectory)
Click on “Schedule Broadcast”Fill In To: (if sending over intranet) Start Time End Time Send Email
Powerpoint BroadcastClick on “Slide Show” “Online Broadcast” “Begin Broadcast”
When finished, class will be on server or local machine and can be copied to CD
Size: 1 MB per minute using 56K encoding
Tegrity WebLearner System Cart with: Computer using Win
XP Projector Whiteboard camera Instructor camera Document camera Sound system Wireless microphone Laser Pointer
Tegrity System
Projects Powerpoint slide Allows annotation of slides Allows video/audio delivery Allows any application use (async
only) Indexes slides Eliminates post-editing Example:
http://tegrity.csee.wvu.edu/tegrityclass/SENG520/Lecture2/class/default.htm
1MB per minute
Distance Learning Examples
PowerPoint Broadcast – http://www.cerc.wvu.edu/duffy/virtual_class.htm
Tegrity – http://netserver.cerc.wvu.edu/numsse
/Fall2003/520/520.htm (click on “Tegrity Demo”)
Distance LearningVideo
Computer uses more light Video window small
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