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Large Vocabulary Continuous Speech
Recognition Engine
(Rev 4.4.2 2016/09/12)
(Rev 4.4 2016/08/30)
(Rev 4.3.1 2014/01/15)
(Rev 4.3 2013/12/25)
(Rev 4.2.3 2013/06/30)
(Rev 4.2.2 2012/08/01)
(Rev 4.2.1 2011/12/25)
(Rev 4.2 2011/05/01)
(Rev 4.1.5 2010/06/04)
(Rev 4.1 2008/10/03)
(Rev 4.0.2 2008/05/27)
(Rev 4.0 2007/12/19)
(Rev 3.5.3 2006/12/29)
(Rev 3.4.2 2004/04/30)
(Rev 2.0 1999/02/20)
(Rev 1.0 1998/02/20)
Copyright (c) 1991-2016 Kawahara Lab., Kyoto University
Copyright (c) 1997-2000 Information-technology Promotion Agency, Japan
Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology
Copyright (c) 2005-2016 Julius project team, Nagoya Institute of Technology
All rights reserved
About Julius
"Julius" is an open-source high-performance large vocabulary
continuous speech recognition (LVCSR) decoder software for
speech-related researchers and developers. Based on word N-gram and
triphone context-dependent HMM, it can perform almost real-time
decoding on most current PCs with small amount of memory.
It also has high versatility. The acoustic models and language models
are plug-gable, and you can build various types of speech recognition
system by building your own models and modules to be suitable for your
task. It also adopts standard formats to cope with other toolkit such
as HTK, CMU-Cam SLM toolkit, etc.
The core engine is implemented as embeddable library, to aim to offer
speech recognition capability to various applications. The recent
version supports plug-in capability so that the engine can be extended
by user.
The main platform is Linux and other Unix workstations, and also works
on Windows (SAPI/console). Julius is distributed with open license
together with source codes.
What's new in Julius-4.4/4.4.1/4.4.2
Julius is now hosted on GitHub:
Version 4.4 now supports stand-alone DNN-HMM support. (see 00readme-DNN.txt)
Other features include:
- New tools:
- adintool-gui: GUI version of adintool
- binlm2arpa: reverse convert binary N-gram to ARPA format
- "mkbingram" now support direct charset conversion of binary LM
- Now does not exit at connection lost in module mode
- update support for VS2013
- Bug fixes
4.4.1 and 4.4.2 are bug fix releases. Please use the latest version.
See "Release.txt" for full list of updates.
Run "configure --help=recursive" to see all configure options.
Run compiled Julius with "-help" to see the full list of available options.
Contents of Julius-4.4.2
(Documents with suffix "ja" are written in Japanese)
00readme.txt ReadMe (This file)
LICENSE.txt Terms and conditions of use
Release.txt Release note / ChangeLog
00readme-DNN.txt DNN-HMM related issues description about Julius for GitHub
configure configure script
Sample.jconf Sample configuration file
Sample.dnnconf Sample DNN configuration file
julius/ Julius sources
libjulius/ JuliusLib core engine library sources
libsent/ JuliusLib low-level library sources
adinrec/ Record one sentence utterance to a file
adintool/ Record/split/send/receive speech data (GUI)
generate-ngram/ Tool to generate random sentences from N-gram
gramtools/ Tools to build and test recognition grammar
jcontrol/ A sample network client module
mkbingram/ Convert N-gram to binary format
mkbinhmm/ Convert ascii hmmdefs to binary format
mkgshmm/ Model conversion for Gaussian Mixture Selection
mkss/ Estimate noise spectrum from mic input
support/ some tools to compile from source
jclient-perl/ A simple perl version of module mode client
plugin/ Several plugin source codes and documentation
man/ Unix online manuals
msvc/ Files to compile on Microsoft VC++ 2013
dnntools/ Sample programs for dnn and vecnet client
binlm2arpa/ Convert binary N-gram to ARPA format
Julius is an open-source software provided as is. For more
information about the license, please refer to the "LICENSE.txt" file
included in this archive.
Also see the copyrights in the files:
Contact Us
Julius is now hosted on GitHub:
You can still find older documents and files in previous web page: