GNU GPL version 2 (or later): https://www.gnu.org/licenses/gpl-2.0.htmlWikus PienaarDaan Wissing2018-02-052018-03-052018-02-052018-03-052015-06-30https://hdl.handle.net/20.500.12185/366PHONAAS is a graphical user interface (GUI) tool, written in Perl and GTK2, using the R programming language and PRAAT to extract vowel formant data.12.4 Mb (zipped)afrTools