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Multimedia data processing

We often have film registries of video and sound recordings of audio that we want to use in our educational activity.  This group of tools can efficiently support this process.

Tools for Processing Video and Digital Sound

Sound and video editing has stopped being the domain of audiovisual specialists.  Nowadays it is possible to become a fan of these arts and do digital, audio and video processing including texts, special  effects, sound and visual credits, subtitles, multiple audio tracks (by language or with the original sound and commentary).

Digital audio editing is doable with AUDACITY, an open access multiplatform tool that allows basic to professional treatment of digital sound; it imports and produces files in a variety of audio wave forms.

Desktop tools like LAS VEGAS MOVIE STUDIO by Sony or QUICKTIME PROFESSIONAL by Apple make it possible for educators and students to edit digital audio and video. If you need to convert or to edit video streams, SQUARED 5 is a very effective and simple free tool; with SQUARED 5 you can also download and edit videos from YouTube and Google by entering the URL.

CAMTASIA STUDIO by TechSmith allows the creation of screen videos from the computer and the editing of videos you have already created.  All of these tools make it possible to create archives in more than one format. CAMSTUDIO OPEN SOURCE  is a free  version of Camtasia Studio 6.

JING by TechSmith and GOVIEW by Citrix Online are open access software that allow users to screen capture and screen video recording with audio. Both applications upload captured information to the Web, FTP, computer or clipboard. A URL is automatically created and can be shared with others to view or access the uploaded file. There is no video or picture editing with JING or GOVIEW. You can add titles with GOVIEW.

allows instant screencasting for Twitter and it is free. This web-based tool works both in Mac or PC. It generates MP4 files that can be played everywhere on the web.

Tools for Sharing digital products on Internet

 The Internet is a good way to share what we create as educators and to benefit from what others have published. Depending on what you want to share, there are very interesting tools and web services at your disposition. The following is not an exhaustive list.

Your favorite URLs (Internet addresses) with the corresponding tags can be organized and shared with DELICIOUS, a free service from Yahoo.

Your pictures and albums can be shared with PICASA from Google or FLICKR from Yahoo.  Images can be uploaded and organized in groups. Their free services permit a limited number of groups.

If you want to publish slides or digital documents in different type of formats you can consider using SLIDESHARE or SCRIBD.  Both are free content publishing services.

If you have created digital video and want to make it available in video episodes no longer that 10 minutes each,
from Google is appropriate; it is one of the best  known digital video free publishing services. If you want your digital video to be part of an educational collection, then SCHOOLTUBE may be of interest to you. It is an online community of educators that want to share videos produced by students or educators, all of them approved by a certified educator and organized in categories.
If you want your digital video or audio to be watched or listened to  on mobile devices as well as Internet browsers, then ITUNES U is a good partner. This is a free service from Apple; it allows sharing content produced by universities, museums, or world leaders and thinkers. Each one of the pieces becomes a track that can be played with iTunes.
Using TEACHERTUBE or eSNIPS you can share video, audio, documents, or pictures, organized by channels or topics of interest. While TeacherTube is a community of educators, eSnips is an open community.
All of the aforementioned services include tagging, which allows members to surf through each collection of digital objects by using tags created by non experts, instead of classifications that follow well defined rules. According to Wikipedia this practice of collaboratively tagging, social classification or social indexing, is called “folksonomy”. Some web sites include tag clouds as a way to visualize tags in a folksonomy.

 Tools for threading voice comments on digital objects

Digital objects (images, videos, documents, presentations) especially those which are more complex, often require feedback that goes beyond the written comment. Imagine being able to comment on your students’ proposals using voice-based remarks. Imagine online collaboration around media where you and your colleagues can asynchronously share ideas on digital objects by using voice, text, and hand written drawings, all on one page.

VOICETHREAD is a tool for having group oral interactions around images, documents, videos or presentations or a combination of them. A VoiceThread can securely capture and hold an entirely group discussion on one simple page.  

Tools for Building web pages

Many people have their own web sites that they use as information servers.  This particular use of the internet builds on web authoring languages such as HTML—Hyper Text Markup Language. There are hypertext authoring systems that let the creator express himself through integration of texts, graphics, links, and videos. These systems also permit you to generate the corresponding HTML codes.

Hypertext authoring systems such as Macromedia-Adobe’s DREAM-WEAVER or Microsoft’s FRONTPAGE minimize the effort to create hypertexts.

Many Learning Management Systems—LMS—and Content Management Systems—CMS—provide online course creators the opportunity to use a WYSIWYG (What You See Is What You Get) human-computer interface that generates editable HTML code. This type of WYSIWYG interface is also behind many of the so-called “Social networking” tools that include blogs, wikis, and community-building systems. We will comment on them under the C type ICTE.

Web site creation tools such as Google SITES allow non-technology experts create their own web sites; these are menu driven and use a WYSIWYG user interface