A very limited dictionary is included ootb. Here are instructions on how to install a more expansive dictionary the includes all of the words found in Wikipedia. Even this solution isn't fool proof because some non-sensical words exist in Wikipedia, but the results are significantly better.
http://opencast.jira.com/wiki/display/MH/Configure+Text+Analysis+%28Trunk%29
http://downloads.opencastproject.org/artifacts/

On 10/26/11 9:47 AM, Dr Leslaw Zieleznik wrote:
I have a question about the text analysis:   does it run successfully?

I have uploaded a very good quality videos with very good audio too, and with 
the discrete scenes/images selected, one video with included slides.
But in both cases the Segment Text, when playing videos is displayed in 95% as 
a garbage.
According to the documentation, the language pack is included with the 
installation.
Is it anything I am missing in the setup/installation?


Many thanks,
Leslaw

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