Sonntag, 24. Januar 2010


Like all the cool kids, simon moved to git.

And so far, while the syntax is a bit strange at first it works really, really well.

The cheap branches are great and svn2git made the transition painless.

Repository URL (read-only):


The old svn repository is still available and up to date but if everything works well enough it will eventually be removed in the next couple of days.

Sonntag, 17. Januar 2010

Model adaption

Keeping in line with the last couple of blog posts that all were breakthroughs on their own, this one is definitely up there as well.

Since revision 1117 simon now supports to use static models or adapt speaker independent models to your own voice in addition to building a new, speaker dependent model from scratch (which is still the default obviously). This means that new users can set up a complete working speech recognition literally in seconds. Pick the scenarios you want, point simon to the voxforge speech model, press "Connect" and start talking.

Of course this only works if you have a fairly "standard" voice and the voxforge model is still not perfect. So if you want a little higher recognition rate go ahead, train a few samples and tell simon to adapt the voxforge base model with it. As little as one minute of speech will yield visible results (you will still need to install the HTK for this, tough).

The only user interaction needed is to click a radio button - simon will do all the work for you.

While I was at it I also improved the julius error reporting so that the recognition process now writes a log file (~/.kde/share/apps/simond/models/<user>/active/julius.log) so that you can easily debug low recognition rates, mic troubles etc. When the recognition fails completely, simon will display the log along with a short description of what simon thinks that happened.

Of course all of this is completely untested and will most likely contain bugs so try it at your own risk. By the way: Current trunk needs KDE 4.4 to compile.