| บทคัดย่อ(English) |
This thesis studies tones of the Thai dialect spokenin various districts of Amphoe Muang Nakhon Pathom. Both thetone system and the phonetic characteristics of each toneare analyzed and the results are used to determinesub-dialect areas. Data were collected from 23 informants,who were chosen according to a set of criteria, to represent23 districts. They include monosyllabic words and minimalpairs. All of the data were analyzed auditorily and somewere analyzed instrumentally using the DSP Sona-Graph Model5500. The results of instrumental analysis were used toverify those of auditory analysis. All of the varieties under study have five tones :mid-level, upper-mid-falling, upper-mid-level-falling,mid-rising and low-level-rising. The phoneticcharacteristics of every tone vary from one area to another.Such variation can be used to divide the area under studyinto many sub-dialect areas. Three criteria, all of whichconcern occurence of tonetic variants, were used in thedivision : first, the most frequent occurence; second,co-occurence, and third, occurence and non-occurence. Eachcriterion was applied to the data of each tone in eachsyllable type (i.e. live syllable, dead syllable with longvowel, and dead syllable with short vowel) where applicable.The results are shown on maps. Finally all of the resultsaccording to each criterion are compiled together yielding 7types of possible results. It is found that there arebetween 13 and 23 sub-dialects depending on the criterionused. |
