screencasts, captions and your global audience
Post on 06-May-2015
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Linda Fahlberg-StojanovskaTim Fahlberg
Screencasts, Captions and your Global Audience
Screencasts in Education• A screencast is a digital recording of computer
screen output, also known as a video screen capture, often containing audio narration.
http://en.wikipedia.org/wiki/Screencast
• Screen output– Before mostly for demonstrating software– NOW with Tablet PCs and graphics tablets, this
can include any instruction!
Screencasts and Captioning
Screencasts in Education• Instructional Video - value of getting your
message out as teachers in an audio/video format that can be replayed.
• Student Portfolios - talking through their thinking and working surely increases their understanding (and our understanding of their understanding).
Screencasts and Captioning
Screencasts in Education• Making and publishing screencasts must
become a required tool in education.
• The tools are available and both teachers and students can now freely and easily make good, useful screencasts and post them on the internet.
Screencasts and Captioning
Jing Project by TechSmith - techsmith.com/jing/
Screencasts for Free
Jing Project by TechSmith - techsmith.com/jing/
• Jing is free.• Make screenshots or screencasts.• Annotate them.
• Save or upload immediately.• Screencast.com "Free Account"—2GB
Screencasts for Free
Jing Project by TechSmith - techsmith.com/jing/
• For $15 year – go Pro.– Produce to *png or *mp4
– Direct upload to YouTube
– Record with webcam
Screencasts for Cheap
Camtasia Studio by TechSmith - techsmith.com/camtasia/
• Not free but academic prices
• Record/ Edit/ Enhance
• Multiple outputs
• Now with Automated Captions
Screencasts Professional
Technical Details for Captioning
YouTube® is ADA compliant: • Caption: 3 lines with 50 characters per line.• Uses or adds:
~100 pixels* to the bottom of screencastCamtasia Studio® is also ADA compliant.
*Exactly 88 pixels
Screencasts and Captioning
Captioning uses or adds 100 pixels to the bottom of your screencast.
• Don’t want to cover up screencast so:– Easiest way is to add 100 pixels of blank space
at the bottom of your screencast while you are recording it!
– For 16x9, this means 960 x 440 recording space + 100 for captions
960 x 540 TOTAL
Screencasts and Captioning
Captions in YouTube
• With 100 pixels blank space at bottom• Resolution 16 x 9 (e.g. 960 x 540)• Produce to HD (CS)• 1280 x 720• Mp4 (MPEG-4)• Upload to your YouTube account
Captions in YouTube
Captions in YouTube
Captions in YouTube
• Upload to YouTube
• Now we need to make caption text.
– Best way is to type up audio.
– There is some “speech-to-text” software available, but works best for good English speakers.
Camtasia Studio 7.1 has this option and you can add “words” to dictionary!
Captions in YouTube
• Produce an audio file mp3 or wav (CS)• Type up using Express Scribe (freeware) • Save in a text file like notepad.
Typing up Captions
Typing up Captions
Adding Captions to YouTube
Adding Captions to YouTube
Adding Captions to YouTube
Adding Captions to YouTube
– Viewing with English Captions (original)
Captions in YouTube
Captions in YouTube
• Example here: http://www.youtube.com/watch?v=_raQ7PGhIY0
• Other examples:
YouTube GeoGebraChannel
over 50 HD CC screencasts on using GeoGebra
(GeoGebra is free dynamic software for mathematics)
Speech–to–text option
Captions in Camtasia Studio
Speech-to-Text Aids in CS
Captions in Camtasia Studio
Captions in Camtasia Studio
or Use our own text and Sync captions
Captions in Camtasia Studio
Caption Track in CS
Captions in Camtasia Studio
Captions in Camtasia Studio
With embedded captions• Upload it to screencast.com• Upload it to teachertube.com• …
• Example: http://www.screencast.com/t/8wWaL7U9Zm
Screencast with Embedded Captions
Captions in Camtasia Studio
Linda Fahlberg-StojanovskaTim Fahlberg
Screencasts, Captions and your Global
Audience
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