The purpose of this paper is to give an outline of phonetic level annotation and segmentation of Hungarian speech databases at the levels of definition and speech technology. In addition to giving guidance to the definition of the content of a database, the technique of annotation and the procedure of manual segmentation, we also discuss mathematical models of computeraided semi-automatic and automatic segmentation. Finally, we are summing up our observations about the application of the procedures we gained during the processing of the MTBA Hungarian Telephone Speech Database
