Jasper is an open source platform for developing always-on, voice-controlled applications. Jasper provides an interface for developers to write their own modules. It runs on Raspberry Pi and a handful of off-the-shelf components.
Jasper relies on CMUSphinx for voice recognition. To use it for languages other than English, CMUSphinx shuld be configured with a new acoustic and language model, as described in the CMUSphinx FAQ.