Praat is a free speech analysis and manipulation software for Windows, macOS and Linux.
Features
Speech synthesis
- From pitch, formant, and intensity
- Articulatory synthesis
- Klatt acoustic synthesis
Speech analysis
- Spectral analysis (spectrograms)
- Pitch analysis
- Formant analysis
- Intensity analysis
- Jitter, shimmer, voice breaks
- Cochleagram
- Excitation pattern
Listening experiments
- Identification and discrimination tests
Labelling and segmentation
- Label intervals and time points on multiple tiers
- Use phonetic alphabet
- Use sound files up to 2 gigabytes (3 hours)
Speech manipulation
- Change pitch and duration contours
- Filtering
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
Statistics
- Multidimensional scaling
- Principal component analysis
- Discriminant analysis
Graphics
- High quality for your articles and thesis
- Produce Encapsulated PostScript files
- Integrated mathematical and phonetic symbols
Programmability
- Easy programmable scripting language
- Communicate with other programs (the sendpraat source code)
- Create hypertext manuals with sound I/O
Portability
- Machine-independent binary files
- Read and write many sound and other file types
Configurability
- Grow or shrink menus
- Save prefs for fonts, views, sound devicesEnter your zip code here
What's New
- Major version update, because of the following two breaking changes.
- Full-trust checking for scripts that attempt to write files or access system commands (this is a breaking change for automation).
- New location of settings file, buttons file and plug-ins on Mac, Windows and Linux, corresponding to how these platforms standardized such locations since 2007 (this is a breaking change for plug-in writers and users of the sendpraat subroutine).
- Flatpak distribution by Anna Simmons.
