CMUSphinx- Training

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CMUSphinx- Training
the training program for a speaker-independent large vocabulary continuous speech recognizer.

Sphinx is a speaker-independent large vocabulary continuous speech recognizer. It is also a collection of free and open source tools and resources that allows researchers and developers to build speech recognition systems. The packages that the CMU Sphinx Group is releasing are a set of reasonably mature, world-class speech components that provide a basic level of technology to anyone interested in creating speech-using applications without the once-prohibitive initial investment cost in research and development; the same components are open to peer review by all researchers in the field, and are used for linguistic research as well. SphinxTrain is CMU Sphinx's training package. It trains models in Sphinx-3 format, which is also used by PocketSphinx. The Sphinx-2 format can also be converted to Sphinx-2 format under some conditions related to Sphinx-2's limitations. At this point, Sphinx-4 uses Sphinx-3 models.

Documentation and

Related Projects



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Kelly Hopkins

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18 February 2009

Leaders and contributors

Alan W Black Maintainer
Rita Singh Maintainer
Arthur Chan Maintainer
Evandro Gouvêa Maintainer
Kevin Lenzo Maintainer
Mosur Ravishankar Maintainer
Ricky Houghton Maintainer

Resources and communication

AudienceResource typeURI
Bug TrackingBug Tracking

Software prerequisites

This entry (in part or in whole) was last reviewed on 15 September 2016.


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