Praat is a comprehensive speech analysis and synthesis program for Windows, tailored to linguists, phoneticians and speech scientists. There are tools to record, analyze and visualize audio signals in fine acoustic detail.
Evaluation
The application is known for pitch tracking, formant measurement, intensity analysis and voice quality evaluation. Users can extract detailed acoustic parameters over time, compare multiple files and generate visual plots like spectrograms. The tools make it possible to study phonetic and prosodic characteristics with millisecond-level resolution.
Manipulation and annotation
It is possible to change pitch, duration and intensity to model speech production or generate artificial stimuli for perception studies. Formant manipulation tools allow for controlled experiments on voice and accent.
Moreover, there is a built-in system for annotating audio tracks with phonetic or linguistic transcriptions using TextGrids. Notes are stored in time-aligned tiers that can mark phonemes, words or other custom segments. Furthermore, if you need the platform to change your voice completely, you may try Voicemod.
Features
- possible to measure resonant frequencies of speech sounds;
- allows cutting, copying and smoothing audio;
- adjustable filters are available to refine raw pitch;
- there is an option to save spectrograms and charts as PNG or EPS files;
- free to download and use;
- compatible with modern Windows versions.
