Praat

Developer(s)| Paul Boersma and David Weenink
Stable release| 6.0.55 (13 June 2019; 6 years ago (2019-06-13)) [±]
Written in| C, C++, Objective-C
Operating system| Windows, Linux, Macintosh, FreeBSD, Solaris
Available in| English
Type| Free software
License| GPL-3.0-or-later[1]
Website| www.praat.org

Praat (/prɑːt/ PRAHT; nl ) is a free, open-source computer software package widely used for speech analysis and synthesis in phonetics[2] and other fields of linguistics. The software was developed and is maintained by Paul Boersma and David Weenink at the University of Amsterdam,[2] 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,[3] as well as for analyzing regional accents and phonetic variation.[4][5]

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 (including intonation and pitch), 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

Praat icon until 2020 Version  | Date  | Main

|
|

3.1  | 5 December 1995  |
4.0  | 15 October 2001  |
4.1  | 5 June 2003  | Mac OS X edition, More than 99 percent of the source code distributed under the General Public Licence.
5.0  | 10 December 2007  |
5.1  | 31 January 2009  |
5.2  | 29 October 2010  |
5.3  | 15 October 2011  |
5.4  | 4 October 2014  |
6.0  | 28 October 2015  |
6.1  | 13 July 2019  |
6.2  | 15 November 2021  |
6.3  | 15 November 2022  |
6.4  | 15 November 2024

## References

1. ↑ "License". https://www.fon.hum.uva.nl/praat/manual/License.html. Retrieved 16 October 2021.
2. ↑ 2.0 2.1 "Praat: doing phonetics by computer". http://www.fon.hum.uva.nl/praat/. Retrieved 20 September 2017.
3. ↑ Reid, Tatiana (2023). "Nuer". Journal of the International Phonetic Association (Cambridge University Press) 54 (1): 479–514. doi:10.1017/S0025100323000191. https://doi.org/10.1017/S0025100323000191.
4. ↑ Broś, Karolina; Krause, Peter A. (2024). "Stop lenition in Canary Islands Spanish – a motion capture study". Laboratory Phonology. doi:10.16995/labphon.9934. https://www.journal-labphon.org/article/id/9934/. Retrieved 2026-01-07.
5. ↑ Oh, Grace Eunhae; Idemaru, Kaori; Brown, Lucien (2026-01-01). "Hotspots for acoustic politeness in Korean and Japanese deferential speech" (in en). Linguistics Vanguard 11 (1): 151–166. doi:10.1515/lingvan-2025-0010. ISSN 2199-174X. https://www.degruyterbrill.com/document/doi/10.1515/lingvan-2025-0010/html.

## External links

* Official website
* on GitHub

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