Thanks Kenshou. That clears it up. Are there any other things a Pali learner should watch out for, when listening to Thai forest monks chant? One thing I wonder about is how the letter "a" is pronounced. According to all the rules I've seen, the "a' should sound like the "u" in "cut". On the thai forest chants, it sounds closer to how they pronounce "ā". On ATI, they explain the rule for long and short vowels like this:
http://www.accesstoinsight.org/lib/auth ... #pronounce Vowels
Pāli has two sorts of vowels, long — ā, e, ī, o, ū, & ay; and short — a, i, & u. Unlike long and shorts vowels in English, the length here refers to the actual amount of time used to pronounce the vowel, and not to its quality. Thus ā & a are both pronounced like the a in father, simply that the sound ā is held for approximately twice as long as the sound a. The same principle holds for ī & i, and for ū & u. Thus, when chanting Pāli, the vowels are pronounced as follows:
----------------------------------
I'm not clear whether it only applies to chanting, or to normal recitation of pāli as well.