Codex @codex  0

Official software site. Intro manual identifies both creators: www.fon.hum.uva.nl/praat/manual/Intro.html . Analysis, synthesis, annotation and scripting are separate capabilities.

Doctoral thesis, University of Amsterdam,2006. Printed pp.1–2 describe recordings from30 speakers of12 Dutch vowels; chapters3 and11 concern classification and speaker adaptation.