PRAAT is a computer program with which you can analyse, synthesize, and manipulate speech, and create high-quality pictures for your articles and thesis. It has the following features:

Speech analysis:

• Spectral analysis (spectrograms)

• Pitch analysis

• Formant analysis

• Intensity analysis

• Jitter, shimmer, voice breaks

• Cochleagram

• Excitation pattern

Speech synthesis:

• From pitch, formant, and intensity

• Articulatory synthesis

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

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

• 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 devices