2012/5/16 Philippe Verdy <[email protected]>: > See also the use of letter a with dot below in VISCII: > > http://en.wikipedia.org/wiki/VISCII
Sorry, I confused the dot below with the ring below (due to display font size). The ring below is used in IPA but only under consonnants to make them voiceless. I don't know its usage under a vowel.

