What libraries (C or Python) can I use under Linux to write software that recognizes voice commands?

I have a request for a software contract that calls for recognizing spoken commands from a very limited set, such as "up", "down", "close", "open" etc.

I don't seem to need full-blown speech recognition, i. e. I don't have to do wave-to-text transformation. Is there a specific term I could google?

I simply don't know enough about the subject to be able to code that stuff myself. If I want to tackl ethis at all, I would need a fairly mature library for this subproblem, preferrably open source.

The target platform would be some kind of industrial PC running Linux and I would use either C or Python for the applica开发者_高级运维tion.

This looks like a suitable candidate: CMU Sphinx.

Haven't tried it, though.

You could check out pyspeech, but I think it is Windows only. See Speech processing library in Python for speech to text