How do I use the pronunciation guide in the lexicon at peshitta.org?

[borota]

For consonants, match each one of these:
A B G D H O Z K Y ; C L M N S E I / X R W T
in order to Syriac alphabet: <!-- m --><a class="postlink" href="http://en.wikipedia.org/wiki/Syriac_alphabet">http://en.wikipedia.org/wiki/Syriac_alphabet</a><!-- m -->

Note that Wikipedia article has the equivalent IPA sounds, so you can hear. Try to use Chrome or other browser able to play ogg audio format. E.g.: <!-- m --><a class="postlink" href="http://en.wikipedia.org/wiki/Voiced_pharyngeal_fricative">http://en.wikipedia.org/wiki/Voiced_pha ... _fricative</a><!-- m -->

Vowels: a o e i u
Diacretics: ' dot above, Qushaya
, dot below, Rukkakha
_ line under
* Seyame

For vowels if you know any Latin based language and pronounce them as such you will be closer to how they should be pronounced.
English aprox.:
a: a in Father. I don't think it has to be as long as English but sound should be the same.
o: o in Phone but try to drop the U part completely and retain just the O. In English this is more of a diphthong, Latin based languages, Greek, Syriac, Hebrew, etc. is a clean O without the rounding toward U.
e: a in Day but retain just the E without the Y part. Again you find this sound clean in Latin based languages, Hebrew, etc.
i: ee in Meet - this one is like English but maybe not necessarily as long.
u: oo in Moon - again I don't think it has to be as long as English but the sound should be the same.

English speaking people seem to have real difficulty not pronouncing both o and e as diphthongs.

I hope this helps. Also this is all based on my observations, I am not a native or a specialist in the field.