ปีที่ ๓๘ ฉบับที่ ๑ มกราคม-มีนาคม ๒๕๕๖

The Journal of the Royal Institute of Thailand Vol. 38 No. 1 Jan-Mar 2013 Abstract When pronouncing the word as why does [u] is lengthened to [uu] in Udom Warotamasikkhadit Fellow of the Academy of Arts, The Royal Institute, Thailand The name of the province, , is normally pronounced [phétburi], their Thai students to pronounce this words as [phétchàbùri]. In this pronunciation the vowels in the second section of the compound, , will automatically be lengthened to [buurii], but Thai language teachers will not able to notice, either visually or cognitively, the differences in short and long vowels in this word. Thai language teachers often teach that the combination of two or more Pali and Sanskrit words into one compound [wúthiphaawá] [meerúmâat]. Many of these Thai language teachers never explain to their students that inserted between the two combined words, such as and many other and rhythm. Pronunciations of as [phétchábùri] places prominence on the syllable [chá], thus adding a mora to the front section of the word. In this case the brain will automatically lengthen the vowel [u] in the secord of word section of the word to Keywords :