'''Janus Recognition Toolkit (JRTk)''', sometimes referred to as Janus, is a general purpose speech recognition toolkit developed and maintained by the Interactive Systems Laboratories at [[Carnegie Mellon University]] and [[Karlsruhe Institute of Technology]]. It is useful for both research and application development and is part of the JANUS speech-to-speech translation system.<ref>{{cite web|author=Sebastian Stüker |url=http://isl.ira.uka.de/english/1406.php |title=KIT - Janus Recognition Toolkit |publisher=Isl.ira.uka.de |date= |accessdate=2012-04-23}}</ref>
The JRTk provides a flexible Tcl/Tk script based environment which enables researchers to build state-of-the-art speech recognizers and allows them to develop, implement, and evaluate new methods. It implements an object oriented approach that unlike other toolkits is not a set of libraries and precompiled modules but a programmable shell with transparent, yet efficient objects.
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JRTk has been used by the Interactive System Labs in many projects for speech recognition, such as:
* BABEL<ref>{{cite web|url=http://www.iarpa.gov/solicitations_babel.html |title=IARPA - Solicitations - Office of Incisive Analysis, Babel Program |publisher=Iarpa.gov |date= |accessdate=2012-04-23}}</ref>
* [[Quaero]]<ref>{{cite web|url=http://www.quaero.org |title=Bienvenue sur le site de Quaero |publisher=Quaero.org |date= |accessdate=2012-04-23}}</ref>
