Certain fundamental tools are critical to research and
development of advanced speech processing technology.
This section summarizes existing speech, text, and pronunciation
modeling tools developed mainly for Thai. One of
the key issues is the analysis of the behavior of tones in
Thai, which is often modulated by phrase and sentence
level intonation. Other attributes of speech which have
been explored for Thai include stress and pause. Work conducted
on speech segmentation and basic phoneme modeling
are also described. For text processing, word and
sentence segmentation are reviewed. Fundamental tools
for pronunciation modeling are described at the end of this
section