Praat

Praat is a comprehensive, open-source software tool for doing phonetics and speech analysis by computer. Developed by scientists, it provides a robust set of features for analyzing, synthesizing, and manipulating speech sounds. Despite its powerful scientific engine, Praat is designed with a practical interface that makes it accessible to students, teachers, researchers, and speech-language pathologists. You can record audio, visualize spectrograms, perform pitch and formant analysis, and annotate phonetic segments, all within a single, cohesive environment. It bridges the gap between advanced research capabilities and everyday usability.