Andrew Savchenko <[email protected]> wrote:

> > https://cloud.google.com/speech/  
> 
> Sad, but there are no free software solutions available in this
> area; at least I'm not aware of them completely. This is
> understandable: the task is extraordinary in both manpower and
> computational resources required.

Actually there are some open source speech recognition programs. 

https://en.wikipedia.org/wiki/List_of_speech_recognition_software

Sphinx2 and Sphinx3 are even available as gentoo ebuilds 
(app-accessibility/sphinx2 and app-accessibility/sphinx3).

Sphinx4 as well as a lots of information about it is available 
here:

http://cmusphinx.sourceforge.net/

A German language model can be found here:

https://sourceforge.net/projects/cmusphinx/files/Acoustic%20and%20Language%20Models/German%20Voxforge/

However I don't know how much effort will be necessary to get the 
whole thing working for your purposes.


> And what Google offers here is not even a proprietary application,
> but an access to a proprietary cloud service which is temporarily
> free of charge as long as it is in alpha-testing stage.

That's right. Beside the fact that every spoken word will be 
transfered to Google (bad enough), it will not be free of charge for
ever.

--
Regards
wabe

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