There are tons of tools available out there for video conversion and encoding. Thanks to Blinkx.com, we have a few recommendations to start with.
Blinkx aims to differentiate itself from what it calls first generation video indexing by considering information culled from an analysis of the video itself: speech recognition, visual analysis and recognition and video optical character recognition (OCR) to allow software to listen to, watch and read the text appearing on the video content itself.
By text, keep in mind that many video formats support subtitle tracks, (both standard and hearing impaired, known as closed-captioning in North America). In some cases, the subtitles are stored in a textual format that could be indexed directly. In other cases, the subtitles are saved as images that need to undergo transcription via OCR, with all of the potential inaccuracies that entails.
Blinkx makes a particular note regarding products which maintain meta data during video conversion. The recommended conversion tools include:
- Autodesk Cleaner - http://www.autodesk.com/cleaner
- Sorenson Squeeze - http://www.sorensonmedia.com/pages/?pageID=99
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