The Secret "C's" of Digital Video: Chromakey and Captioning

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CVCUE CVCUE ConferenceConferenceFresno, CAFresno, CAMarch 28, 2009March 28, 2009


Take advantage of the Discovery Educator Network (DEN)

The Secret “C’s” of Digital Video: Chromakey and Captions


Hall DavidsonDirectorDiscovery Educator Network

Graphic: Matt Monjan, Discovery Educator Network

Instant chromakey – Photobooth, or iChat video window on Mac (Leopard operating system)s

Edit with chromakeyPC: Adobe Premiere Elements (and others)Mac: iMovie 9.0, or plug inOlder version: Geethree plug in

Image and instructions at: http://blog.discoveryeducation.com/media_matters/files/2008/11/brain-17.png ; Video, DiscoveryEducationstreaming - Editable clip

How to make a chromakey

Click and drag one clip onto another and the control box pops up.

Tool (Mac):iMovie 9Green screen toolfree with iMovie 9 or free 8 upgrade)

iMovie 9.0:Click and drag one clip onto another in the timeline and the control box pops up.Select Green Screen.The green goes away, replaced by the video on the line below.

Hall Davidson 11/07

Tool: Adobe Premiere Elements (PC)Adobe Premiere Elements:This is video editing program with multiple video layers.

It allows you to put students directly into the video.

Cost to schools: +$50 (depends on state)Version pictured is 4.0. Adobe recently increased their version # to 7.0, skipping 5-6

Just getting started with video making? Movie Maker and PhotoStory are free programs from Microsoft. Premiere Elements is software you must buy. There are educator prices for Adobe Products. Check with your software purchaser or go to www.adobe.com. Also check out Joe Brennan’s blog, Digital Storytelling at http://blog.discoveryeducation.com/digital_storytelling

Just getting started with video making? Movie Maker and PhotoStory are free programs from Microsoft. Premiere Elements is software you must buy. There are educator prices for Adobe Products. Check with your software purchaser or go to www.adobe.com. Also check out Joe Brennan’s blog, Digital Storytelling at http://blog.discoveryeducation.com/digital_storytelling

Hall Davidson 11/07

Adobe Premiere Elements:From the opening screen, click Get Media to bring in video clips.

Bring in the video you want to put students into and a video of the students in front of a single colored wall.

For the single colored wall, you can use construction paper, fabric (WalMart sells some), or a nearby painted wall. Use a color with no flesh tones. Green and blue work best, but other colors can work, too

Hall Davidson 11/07

Adobe Premiere Elements:Put the original video on layer Video 1.Put the video in front of the colored wall on layer Video 2

Click on Effects in the main menu.This will bring up the Effects menu. You will use the Chromakey effect.

Hall Davidson 11/07

Adobe Premiere Elements:In Effects, type “chromakey” in the search box.

The Chroma Key effect will appear.

Drag the Chroma Key box onto the clip with the colored wall

Click on Edit effects

Hall Davidson 11/07

Adobe Premiere Elements:The Chroma Key effect control box will appear.

Click on the eyedropper then click it onto the background color

Adjust the controls until the background color goes away. You will see the video on layer 1 show through.

Hall Davidson 11/07

Adobe Premiere Elements:You have now inserted students into the video.

Share it as flash, QuickTime, or Windows media file.

Now you can put it into PowerPoint or show on its own.

You can also tape a new narration and edit out existing sound.

In order to see the video you are working on, drag the indicator to the spot you want to see.

Captions: Open and Closed case

http://www.captions.org/index.cfm

Closed Captions Hidden but there

Open CaptionsThere all time

Thanks, Matt Monjan! Discovery Educator Network

For more on captions, especially on used captioned videos from the media library, check Matt Monjan’s blog athttp://tinyurl.com/5ledboorhttp://blog.discoveryeducation.com/streaming_a_to_z/

You must turn on captioning to get closed captioning to display on streaming or downloaded videos. How to do this follows.

Opened captioned videos will play without manipulation, but they are rare on the web.

http://www.captions.org/index.cfm

BenefitsFor individuals who are deaf or hard-of-hearing.

For individuals whose native language is not English, language captions improve comprehension and fluency.

Captions can also help improve literacy skills for native English speakers.

Ultimate digital native writing prompt

Thanks, Matt Monjan

What types of video files work with CC ?

Windows Media Player files, “.asf”, are fully compatible with CC. These files can be streamed and/or downloaded tp show captions

Mac users can install a Windows Media Player ]When downloading videos on a Mac, users should choose the .mov or QuickTime files. Macs will need an application called VLC. It is free. You can download VLC at

http://www.videolan.org/vlc/

Thanks, Matt Monjan

Playing close captioning on your computer Note: not all videos are captioned!

It is easier on a Windows machine. You turn on captions in the Windows Media Player

Mac users can install a Windows Media Player. Macs will also need an application called VLC. It is free. You can download VLC at

http://www.videolan.org/vlc/

Thanks, Matt Monjan

Downloading closed captioned video files to play on a PC

• The captions are in separate files from the video files• Download both the video files and the caption files • Video files are .asf, .wmv, or other• Captioning files are .smi files • The two files must be in the same folder for the

captions to play, so create a folder for your video and captioned files. When you download, make sure they are in the same folder.

Thanks, Matt Monjan

Playing CC videos full screen on a PC

Note: this only works on Windows Media Player 10 or higher

Thanks, Matt Monjan

• There are some settings you have to adjust before captioning will play on your PC

• The images and instructions that follow will walk you through how to do this on your PC

• Mac instructions follow

Playing CC videos full screen on a PC

1. Open Windows Media Player

2. Click on the word Play in the tool bar and scroll down to Lyrics, Captions, and Subtitles

3. Choose On if Available

Note: this only works on Windows Media Player 10 or higher

Thanks, Matt Monjan

Playing CC videos full screen1. Click on the word

Tools in the tool bar and choose Options

2. Click on the Security tab

3. Place checkmarks next to:

Run script commands when present

Show local captions when present” (1st and 4th boxes)

4. Click on the Apply and OK buttons

Thanks, Matt Monjan

Finding videos with closed captioned titles

Closed captioned video must have caption files (.smi) with them or they won’t show captions

Finding captioned files is part of what must be done to bring this advantage to your class

A great place to start is DiscoveryEducationStreaming (formerly known as Unitedstreaming). It is the most used K-12 web library in the world.

Go to http://streaming.discoveryeducation.com/ for a look and a free trial.

From Discovery Education Streaming – How to Find Closed

Captioned TitlesClick on the Advanced Search Link

Scroll down and place a check in the Include Only Closed Captioned Titles box

Thanks, Matt Monjan

Turning CC files onWindows

1. Check the Enable Closed Captioning box in the Media Settings area

2. Set CC as the default in your My Preferences Area

Thanks, Matt Monjan

Playing streaming captioned videos on a PC or Mac from inside Discovery Education streaming

On both machines, make sure that the Windows Media Player is installed and selected. Then place a checkmark in the Enable Closed Captioning box

Thanks, Matt Monjan

Downloading CC videos and CC files on a Mac

• Make sure that the Enable Closed Captioning box is checked and that the Windows Media Player option is selected.

• Download the CC file (.smi)• Change DE streaming Media

Settings to QuickTime

Thanks, Matt Monjan

Downloading CC videos and CC Files on a Mac - continued

• Download the .MOV file• Put .mov and .smi file in the same folder• To play your video with closed captions, you will

need an application called VLC. It is free. You can download VLC at http://www.videolan.org/vlc/

• Open VLC and select Open File… from the File menu.

• Check Load subtitles file: and click Settings…

Thanks, Matt Monjan

Downloading CC videos and CC Files on a Mac – last steps!

• Browse to the .smi file in the folder you created on your desktop, then click OK.

• Browse to your .mov file in your folder you created on your desktop by clicking the Browse… icon, then click OK.

• The video should begin playing with closed captions.

Thanks, Matt Monjan

Neat Strategy to help students – Enlarging Close Captioned Text

• Go to folder where the files are downloaded

• Right-click on the .smi file and open with a text editor like Notepad

• Change the Font Size to 20 and/or color to red, green, etc..

• Change the actual text! “Sharks are top predators This trick is awesome…”

Thanks, Matt Monjan

10 pt

30 pt

Before and After Shots of the CC Change

Thanks, Matt Monjan

CC Text That You Can Change

Thanks, Matt Monjan

Need a recap – check out Matt Mojan’s blog:streaming A-Z blog ( staking claim to best blog in the blogosphere)http://tinyurl.com/5ledbo

Thanks, Matt Monjan



Take advantage of the Discovery Educator Network (DEN)



Hall DavidsonDirectorDiscovery Educator Network

Final Note: Are all of Discovery Education videos/segments closed

captioned?

No, currently about 30% of the basic DE streaming is captioned and 19% of Plus is captionedIt breaks down like this:Basic DE streaming = 1,149 full CC videos and 11, 729 CC video clips. Plus = 1,456 full CC videos and 16, 272 video clips

The Secret "C's" of Digital Video: Chromakey and Captioning

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