11. Eight vowel qualities are recovered from the transcription,, which may be long. 12. There is little or no change in the actual vowel quality of the neutral vowels. 13. Weakly stressed long vowels may also be shortened without any significant reduction in vowel quality . 14. Kiowa has six contrasting vowel qualities with three heights and a front-back distinction. 15. They teamed together to conduct experiments using synthetic speech, about the relative nature of vowel quality . 16. Northern dialects are more conservative in vowel quality , while southern dialects have preserved vowel quantity distinctions. 17. These are not reversible, as they do not indicate tone and underrepresent vowel quality and quantity. 18. Certain signs, such as " ", do not distinguish between the different vowel qualities . 19. The other vowel quality sequences ( diphthongs ? ), disregarding the added complexity of phonation, are. 20. All five vowel qualities may be found as short oral, long oral, and long nasal vowels.
