Most information on how the program works is in its manual and on http://www.praat.org, which is also where you can download the latest binary executables from.
You need the Praat source code only in the following cases:
- you want to extend Praat’s functionality by adding C or C++ code to it; or
- you want to understand or reuse Praat’s source code; or
- you want to compile Praat for a computer for which we do not provide binary executables, e.g. Linux for non-Intel computers, FreeBSD, HP-UX, SGI, or SPARC Solaris.
Before trying to dive into Praat’s source code, you should be familiar with the working of the Praat program and with writing Praat scripts. The Praat program can be downloaded from http://www.praat.org.
All of the code is available on GitHub under the GNU General Public License. Of course, any improvements are welcomed by the authors.
To download the latest source code of Praat from GitHub, click on the zip or tar.gz archive at the latest release, or fork ("clone") the praat/praat repository at any later change.
First make sure that the source code can be compiled as is.
Then add your own buttons by editing main/main_Praat.cpp or fon/praat_Fon.cpp.
Consult the manual page on Programming.
Most of the source code is written in C++, but some parts are written in C.
The code requires that your compiler supports C99 and C++11 (for e.g. char32_t and rvalue references).
To compile Praat's Windows edition on a 64-bit Windows computer,
install Cygwin on that computer,
and under Cygwin install the Devel packages i686-w64-mingw32 (for 32-bit targets)
and/or x86_64-w64-mingw32 (for 64-bit targets).
Move the Praat sources directory somewhere in your /home/yourname tree.
Go into this sources directory (where the folders fon and sys are).
Then if you want to build Praat's 32-bit edition, type
cp makefiles/makefile.defs.mingw32 ./makefile.defs
or if you want to build Praat's 64-bit edition, type
cp makefiles/makefile.defs.mingw64 ./makefile.defs
Then type make to build Praat.exe
(use make -j4 to speed this up, i.e. to use 4 processors in parallel).
Cross-compiling for Windows on a Mac or Linux computer is slightly more difficult, but not impossible.
You can use the MinGW compiler,
for which you can find 32- and 64-bit toolchains
here (look for Automated Builds).
Install the GDI+ headers and the GDI+ library (32-bit;
for 64-bit Windows just extract a GDI+ DLL from somewhere).
Then copy the file makefiles/makefile.defs.darmin32 or makefiles/makefile.defs.darmin64
to the sources directory and rename it to makefile.defs.
Then type make.
Extract the praatXXXX_xcodeproj64.zip file from the latest release
into the directory that contains
sys, fon, dwtools and so on. Then open the project praat64.xcodeproj in Xcode
and choose Build or Run for the target praat_mac64.
If you get an error message like “Code Signing Identity xxx does not match any valid, non-expired,
code-signing certificate in your keychain”, then select the target praat_mac64, go to Info → Build,
and switch “Code Signing Identity” to “Don’t Code Sign”,
or sign with your own certificate if you have one as a registered Apple developer.
If you get lots of errors saying “Expected unqualified-id” or “Unknown type name NSString”, then you may have to switch the Type of some .cpp file from “C++ Source” to “Objective-C++ Source” (under “Identity and Type” in the righthand sidebar).
If you want to build Praat as a library instead of as an executable,
try the target praat_mac64_a (static) or praat_mac64_so (dynamic).
To set up the required system libraries, install some graphics and sound packages:
sudo apt-get install libgtk2.0-dev
sudo apt-get install libasound2-dev
sudo apt-get install libpulse-dev
To set up your source tree for Linux, go to Praat's sources directory (where the folders fon and sys are) and type
cp makefiles/makefile.defs.linux.pulse ./makefile.defs
To build the Praat executable, type make.
If your Unix isn’t Linux, you may have to edit the library names in the makefile
(you may need pthread, gtk-x11-2.0, gdk-x11-2.0, atk-1.0, pangoft2-1.0, gdk_pixbuf-2.0, m, pangocairo-1.0,
cairo, gio-2.0, pango-1.0, freetype, fontconfig, gobject-2.0, gmodule-2.0, gthread-2.0, rt, glib-2.0, asound).
When compiling Praat on an external supercomputer or so, you will not have sound.
If you do have libgtk2.0-dev (and its dependencies), do
cp makefiles/makefile.defs.linux.silent ./makefile.defs
Then type make to build the program. If your Unix isn’t Linux,
you may have to edit the library names in the makefile (you may need pthread, gtk-x11-2.0, gdk-x11-2.0, atk-1.0,
pangoft2-1.0, gdk_pixbuf-2.0, m, pangocairo-1.0, cairo, gio-2.0, pango-1.0, freetype, fontconfig, gobject-2.0,
gmodule-2.0, gthread-2.0, rt, glib-2.0).
When compiling Praat for use as a server for commands from your web pages, you may not need sound or a GUI. Do
cp makefiles/makefile.defs.linux.nogui ./makefile.defs
which creates the executable praat_nogui. If you don't need graphics (.e.g PNG files) either
(i.e. you need only Praat's computation), you can create an even lighter edition:
cp makefiles/makefile.defs.linux.barren ./makefile.defs
which creates the executable praat_barren. Then type make to build the program. If your Unix isn’t Linux,
you may have to edit the library names in the makefile.
While the Praat website contains the latest executable for all platforms that we support (or used to support), the releases on GitHub contain many older executables as well.
The meaning of the names of binary files available on GitHub is as follows:
praatXXXX_win64.zip: zipped executable for 64-bit Windows (XP and higher)praatXXXX_win32.zip: zipped executable for 32-bit Windows (XP and higher)praatconXXXX_win64.zip: zipped executable for 64-bit Windows, console editionpraatconXXXX_win32.zip: zipped executable for 32-bit Windows, console editionpraatconXXXX_win32sit.exe: self-extracting StuffIt archive with executable for 32-bit Windows, console editionpraatXXXX_win98.zip: zipped executable for Windows 98praatXXXX_win98sit.exe: self-extracting StuffIt archive with executable for Windows 98
praatXXXX_mac64.dmg: disk image with executable for 64-bit Intel Macs (Cocoa)praatXXXX_xcodeproj64.zip: zipped Xcode project file for the 64-bit edition (Cocoa)praatXXXX_mac32.dmg: disk image with executable for 32-bit Intel Macs (Carbon)praatXXXX_xcodeproj32.zip: zipped Xcode project file for the 32-bit edition (Carbon)praatXXXX_macU.dmg: disk image with universal executable for (32-bit) PPC and Intel Macs (Carbon)praatXXXX_macU.sit: StuffIt archive with universal executable for (32-bit) PPC and Intel Macs (Carbon)praatXXXX_macU.zip: zipped universal executable for (32-bit) PPC and Intel Macs (Carbon)praatXXXX_macX.zip: zipped executable for MacOS X (PPC)praatXXXX_mac9.sit: StuffIt archive with executable for MacOS 9praatXXXX_mac9.zip: zipped executable for MacOS 9praatXXXX_mac7.sit: StuffIt archive with executable for MacOS 7
praatXXXX_linux64.tar.gz: gzipped tarred executable for 64-bit Linux (GTK)praatXXXX_linux32.tar.gz: gzipped tarred executable for 32-bit Linux (GTK)praatXXXX_linux_motif64.tar.gz: gzipped tarred executable for 64-bit Linux (Motif)praatXXXX_linux_motif32.tar.gz: gzipped tarred executable for 32-bit Linux (Motif)praatXXXX_solaris.tar.gz: gzipped tarred executable for Solaris