Let’s Stream! Using iMovie 2 An overview of video for streaming for the Internet.

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Presentation transcript:

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…

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?

Bandwidth codec Info

How do you stream? Bandwidth Info

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 = 99 No audio compression 240 x 180 pixels QT 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 Sound images sound

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 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 Viewer Bookshelf Timeline

iMovie’s Components Eyeball view Clock view

Answers Pans and Zooms Large Titles iMovie 2