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Latest commit 1d3449e Feb 9, 2017 nshmyrev Added threading support
git-svn-id: svn+ssh:// 94700074-3cef-4d97-a70e-9c8c206c02f5

CMU Sphinx common libraries

This package contains the basic libraries shared by the CMU Sphinx trainer and all the Sphinx decoders (Sphinx-II, Sphinx-III, and PocketSphinx), as well as some common utilities for manipulating acoustic feature and audio files.

Please see the LICENSE file for terms of use.

Linux/Unix installation

sphinxbase is used by other modules. The convention requires the physical layout of the code looks like this:

├── package/
└── sphinxbase/

So if you get the file from a distribution, you might want to rename sphinxbase-X.X to sphinxbase by typing:

$ mv sphinxbase-<X.X> sphinxbase (<X.X> being the version of sphinxbase)

If you downloaded directly from the Subversion repository, you need to create the "configure" file by typing:

$ ./

If you downloaded a release version or if you have already run "", you can build simply by running:

$ ./configure
$ make

If you are compiling for a platform without floating-point arithmetic, you should instead use:

$ ./configure --enable-fixed --without-lapack
$ make

You can also check the validity of the package by typing:

$ make check

... and then install it with (might require permissions):

$ make install

This defaults to installing SphinxBase under /usr/local. You may customize it by running ./configure with an argument, as in:

$ ./configure --prefix=/my/own/installation/directory

XCode Installation (for iPhone)

Sphinxbase uses the standard unix autogen system, you can build sphinxbase with automake. You just need to pass correct configure arguments, set compiler path, set sysroot and other options. After you build the code you need to import dylib file into your project and you also need to configure includes for your project to find sphinxbase headers.

You also will have to create a recorder to capture audio with CoreAudio and feed it into the recognizer.

For details see

If you want to quickly start with Pocketsphinx, try OpenEars toolkit which includes Pocketsphinx

Android installation


MS Windows installation:

To compile sphinxbase in Visual Studio 2010 Express (or newer):

  1. Unzip the file.
  2. Rename the directory to sphinxbase
  3. Go into the sphinxbase folder and click sphinxbase.sln
  4. In the menu, choose Build -> Rebuild All -> Batch Build -> Build

In Step 4, make sure all projects are selected, preferably the "Release" version of each.

If you are using cygwin, the installation procedure is very similar to the Unix installation. However, there is no audio driver support in cygwin currently so one can only use the batch mode recognzier.

If you want to install Python packages on Windows, take a look at