  The signal sound contains many different features, including Voice Onset Time
(VOT), which is a very important feature of stop sounds in many languages. The
only application of VOT values is stopping phoneme subsets. This subset of
consonant sounds is stop phonemes exist in the Arabic language, and in fact,
all languages. The pronunciation of these sounds is hard and unique especially
for less-educated Arabs and non-native Arabic speakers. VOT can be utilized by
the human auditory system to distinguish between voiced and unvoiced stops such
as /p/ and /b/ in English.This search focuses on computing and analyzing VOT of
Modern Standard Arabic (MSA), within the Arabic language, for all pairs of
non-emphatic (namely, /d/ and /t/) and emphatic pairs (namely, /d?/ and /t?/)
depending on carrier words. This research uses a database built by ourselves,
and uses the carrier words syllable structure: CV-CV-CV. One of the main
outcomes always found is the emphatic sounds (/d?/, /t?/) are less than 50% of
non-emphatic (counter-part) sounds ( /d/, /t/).Also, VOT can be used to
classify or detect for a dialect ina language.
