Let’s Stream!Using iMovie 2
An overview of video for streaming for the Internet
Workshop Agenda
Video in instruction Tools and tips for streaming video Overview of iMovie 2 Hands-on with iMovie 2
Importing Editing and enhancing Exporting (video and computer files)
Two thoughts on video…
As part of the curriculum
As an assignment within a curriculum
As a part of the curriculum
When you are not in class
Interesting topics
Distance learning
About using video on the web…
Be aware of your audience!
Bandwidth/connection speed?
Processor speed?
RAM?
OS/browser/plug-ins?
As an assignment within the curriculum
Another form of expression
Engages students’ attention in content
Useful technical skill
An example…
http://www.apple.com/education/dv/gallery/mov2.html
Finished video formats
Video tapes Video files
CD or DVD In multimedia production
PowerPoint Hyperstudio
On a webpage
Equipment needed
Video camera
Digital 8 Mini DV
Equipment needed
Video tapes Tripod
Equipment needed
FireWire cable iMac with iMovie
How do you stream?
Take the best possible video and audio!
Use a tripod Less pans and zooms
the better
Use an external microphone
Lighting is good
How do you stream?
How do you stream?
Bandwidth
codec
InfoInfoInfoInfoInfoInfo
How do you stream?
Bandwidth
Codec
Compression-Decompression
Makes video/audio files smaller so easier to transmit over the Internet
Macs and PCs do not have the same default codecs
Example – video footage
H.263 compression, 12 fps, Keyframe rate = 99No audio compression
240 x 180 pixelsQT file = 108 KB, AVI file = 697 KB
5:17 seconds = 167 frames (or 167 individual pictures)
Possible compression
Multiple pictures that represent changes
Codecs apply to…
Bandwidth
Images
Sound
Images
ImagesSoundSound
imageimagess
sounsoundd
Streaming codecs
As recommended by QuickTime for the Web
Audio Codecs
Qualcomm PureVoice
QDesign Music
Video Codecs
Photo JPEG
Motion JPEG
Sorenson Video
H.263
iMovie’s preset codec options
Email Movie, small
Web Movie, small
Streaming Web Movie, small
CD-ROM Movie, medium
Full Quality, large
Expert – you set both video and audio
Is this a good video clip?
What was wrong?
Background movements
Bad zooms
Horrible picture and sound quality
Distracting transitions
Small titles
How to improve it?
Subtle background
Portrait mode on video camera
Use a tripod
Stills are great!
Zoom in from beginning or pan very slowly
Slow down pan in iMovie
How to improve it?
Get quality video and audio from the start
Better to degrade than try to improve
Good lighting
Use transitions sparingly
Remember change is bad!
Large titles
Improvement
Let’s get started!
Using iMovie 2
iMovie’s Components
1
2
3
Viewer
Bookshelf
Timeline
iMovie’s Components Eyeball view
Clock view
Answers
Pans and Zooms
Large Titles
iMovie 2