RWTH ASR
Encyclopedia
RWTH ASR is an open source
speech recognition
toolkit.
The toolkit includes state of the art speech recognition technology for the development of automatic speech recognition systems. It has been developed by the Human Language Technology and Pattern Recognition Group at RWTH Aachen University.
RWTH ASR includes tools for the development of acoustic models
and decoders as well as components for speaker adaptation, speaker adaptive training,
unsupervised training, discriminative training, and word lattice processing. The software runs on Linux
and Mac OS X
. The project homepage offers ready-to-use models for research purposes, tutorials, and comprehensive documentation.
The toolkit is published under an open source license, called "RWTH
ASR License", which is derived from the QPL. This license grants free usage including re-distribution and
modification for non-commercial use.
Open source
The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...
speech recognition
Speech recognition
Speech recognition converts spoken words to text. The term "voice recognition" is sometimes used to refer to recognition systems that must be trained to a particular speaker—as is the case for most desktop recognition software...
toolkit.
The toolkit includes state of the art speech recognition technology for the development of automatic speech recognition systems. It has been developed by the Human Language Technology and Pattern Recognition Group at RWTH Aachen University.
RWTH ASR includes tools for the development of acoustic models
Acoustic Model
An acoustic model is created by taking audio recordings of speech, and their text transcriptions, and using software to create statistical representations of the sounds that make up each word. It is used by a speech recognition engine to recognize speech....
and decoders as well as components for speaker adaptation, speaker adaptive training,
unsupervised training, discriminative training, and word lattice processing. The software runs on Linux
Linux
Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...
and Mac OS X
Mac OS X
Mac OS X is a series of Unix-based operating systems and graphical user interfaces developed, marketed, and sold by Apple Inc. Since 2002, has been included with all new Macintosh computer systems...
. The project homepage offers ready-to-use models for research purposes, tutorials, and comprehensive documentation.
The toolkit is published under an open source license, called "RWTH
ASR License", which is derived from the QPL. This license grants free usage including re-distribution and
modification for non-commercial use.