.utt files are used to generate .lab files as input of training process. You can skip utt files by modifying "make file" in data folder at "label:" line.
u can check lab_format.pdf in data folder for the content of a lab file. Basically, they are linguistic specification extracted from your text.
Hello , I want to use HTS for Arabic language , I built the utt files using Festival but I know that Festival is English oriented . Are you using different ways for building utt files for other languages. Thnx