KDE.News has a look at simon
, which is a speech-activated interface for KDE. It looks like an interesting project, but, unfortunately, may suffer from some licensing snags: "HTK, the toolkit responsible for the HMM [Hidden Markov Model] evaluation is distributed under GPL-incompatible, restrictive license that prevents redistribution. In order to install simon, one must separately download HTK from their website which requires registration. The source is available, and they encourage you to modify and contribute to it, but it cannot be redistributed.
Additionally, Julius, used for the voice recognition has an attribution clause which causes problems with the GPL in a way that is reminiscent of the old-style BSD license (the one with the advertising clause). Any research conducted with simon would thereby require a reference to the Julius authors in the bibliography.
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