Why are there different answers for how many vowels Thai has?

Why are there different answers for how many vowels Thai has? thai vowels Write Thai letters online without installing Thai keyboard This online keyboard allows you to type Thai letters using any computer keyboard, mouse, thai post office In Thai there are 32 vowels However, there are 28 main vowel forms The 4 we don't learn anymore, but can be seen in old textbooks are as follows:

thai post office Estimating Underlying Articulatory Targets of Thai Vowels by Using Deep Learning Based on Generating Synthetic Samples from a 3D Vocal Tract Model and Data

thai pbs online Write Thai letters online without installing Thai keyboard This online keyboard allows you to type Thai letters using any computer keyboard, mouse, When you learn Thai vowels, make sure you learn a list of changed vowels Most of the Thai