Creative Commons Attribution 4.0 International: http://creativecommons.org/licenses/by/4.0/Wissing, Daan2019-06-042019-06-042019-05-28https://hdl.handle.net/20.500.12185/510The primary aim of this speech data set was to study the role of tone in the function word "ke" in the minimal pairs "ke motho" and in the function word "o" in "o batlang?" This data set is also useful for investigation of the vowel quality of the vowels containing in the speech recordings in terms of their frequency formants.wav and textgrids1398 sec.N/Asottonevowel qualityfunction wordsspeech corpus72 MB