Praat


Praat is a free, open-source computer software package widely used for speech analysis and synthesis in phonetics and other fields of linguistics. The software was developed and is maintained by Paul Boersma and David Weenink at the University of Amsterdam, and is compatible most major operating systems, including Unix, Linux, Mac, and Microsoft Windows. Praat has been used in linguistic research on endangered and minority languages, as well as for analyzing regional accents and phonetic variation.
Praat's main uses are the analysis, manipulation, and synthesis of sounds. With a given sound, Praat allows users to extract information about vowel formants, prosodic details, and visual information via spectrograms and waveforms, which includes voicing, as well as the presence or absence of a particular segment. Users can also annotate sounds and interact with them using the built-in GUI scripting language.

Version history

VersionDateMain
3.15 December 1995
4.015 October 2001
4.15 June 2003Mac OS X edition, More than 99 percent of the source code distributed under the General Public Licence.
5.010 December 2007
5.131 January 2009
5.229 October 2010
5.315 October 2011
5.44 October 2014
6.028 October 2015
6.113 July 2019
6.215 November 2021
6.315 November 2022
6.415 November 2024-