Conference paper

POVEY Daniel, GHOSHAL Arnab, BOULIANNE Gilles, BURGET Lukáš, GLEMBEK Ondřej, GOEL Nagendra K., HANNEMANN Mirko, MOTLÍČEK Petr, QIAN Yanmin, SCHWARZ Petr, SILOVSKÝ Jan, STEMMER Georg and VESELÝ Karel. The Kaldi Speech Recognition Toolkit. In: Proceedings of ASRU 2011. Hilton Waikoloa Village Resort, Hawaii: IEEE Signal Processing Society, 2011, pp. 1-4. ISBN 978-1-4673-0366-8.
Publication language:english
Original title:The Kaldi Speech Recognition Toolkit
Title (cs):KALDI Toolkit pro rozpoznávání řeči
Proceedings:Proceedings of ASRU 2011
Conference:IEEE 2011 Workshop on Automatic Speech Recognition and Understanding
Place:Hilton Waikoloa Village Resort, Hawaii, US
Publisher:IEEE Signal Processing Society
speech recognition, toolkit
We described the design of Kaldi, a free and open-source speech recognition toolkit. The toolkit currently supports modelling of context-dependent phones of arbitrary context lengths, and all commonly used techniques that can be estimated using maximum likelihood. It also supports the recently proposed SGMMs. Development of Kaldi is continuing and we are working on using large language models in the FST framework, lattice generation and discriminative training.
We describe the design of Kaldi, a free, open-source toolkit for speech recognition research. Kaldi provides a speech recognition system based on finite-state transducers (using the freely available OpenFst), together with detailed documentation and scripts for building complete recognition systems. Kaldi is written is C++, and the core library supports modeling of arbitrary phonetic-context sizes, acoustic modeling with subspace Gaussian mixture models (SGMM) as well as standard Gaussian mixture models, together with all commonly used linear and affine transforms. Kaldi is released under the Apache License v2.0, which is highly nonrestrictive, making it suitable for a wide community of users.
   author = {Daniel Povey and Arnab Ghoshal and Gilles Boulianne and
	Luk{\'{a}}{\v{s}} Burget and Ond{\v{r}}ej Glembek and K.
	Nagendra Goel and Mirko Hannemann and Petr
	Motl{\'{i}}{\v{c}}ek and Yanmin Qian and Petr Schwarz and
	Jan Silovsk{\'{y}} and Georg Stemmer and Karel Vesel{\'{y}}},
   title = {The Kaldi Speech Recognition Toolkit},
   pages = {1--4},
   booktitle = {Proceedings of ASRU 2011},
   year = {2011},
   location = {Hilton Waikoloa Village Resort, Hawaii, US},
   publisher = {IEEE Signal Processing Society},
   ISBN = {978-1-4673-0366-8},
   language = {english},
   url = {}

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