Praat 4.6.38

Praat is an application for speech analysis.
According to its authors, praat is "doing phonetics by computer". Through its graphical interface, several speech analysis functionalities are available: spectrograms, cochleograms, and pitch and formant extraction. Articulatory synthesis, as well as synthesis from pitch, formant, and intensity are also available. Other features are segmentation, labelling using the phonetic alphabet, and computation of statistics. Praat is configurable and extensible through its own scripting language and has provisions for communicating with other programs.

Praat will work fine wherever it is on your disk; just type praat or click the icon. If Praat's graphical interface appears poorly, try starting Praat with praat -motif.

Here are some key features of "Praat":

Speech analysis:

spectral analysis (spectrograms)
pitch analysis
formant analysis
intensity analysis
jitter, shimmer, voice breaks
excitation pattern

Labelling and segmentation:

label intervals and time points on multiple tiers
use phonetic alphabet
use sound files up to 2 gigabytes (3 hours)

Learning algorithms:

feedforward neural networks
discrete and stochastic Optimality Theory


high quality for your articles and thesis
produce Encapsulated PostScript files
integrated mathematical and phonetic symbols


machine-independent binary files
read and write many sound and other file types

Speech synthesis:

from pitch, formant, and intensity
articulatory synthesis

Listening experiments:
identification and discrimination tests

Speech manipulation:
change pitch and duration contours


multidimensional scaling
principal component analysis
discriminant analysis


easy programmable scripting language
communicate with other programs
(the sendpraat source code)
create hypertext manuals with sound I/O

grow or shrink menus
save prefs for fonts, views, sound devices

What's New in This Release:

More extensive logistic regression.

last updated on:
November 29th, 2007, 18:33 GMT
developed by:
Paul Boersma and David Weenink
license type:
GPL (GNU General Public License) 
ROOT \ Education
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