Praat 5.1.23 - Analyze/synthesize/manipulate speech. (Free)

Praat is an application with which phoneticians can analyze, synthesize, and manipulate speech and create high-quality images for their articles and doctoral theses.

The source code may be downloaded here.

• Allowed multiple files to be selected with e.g. Read from file....
• Demo window: guarded against handling the Demo window from two scripts at a time.