My main source is Marsack's 1962 Teach Yourself Samoan, however, I am modifying the terms he uses for a linguistically savvy audience, so it must be noted that a lot of what I say is my own interpratation, so I might describe things weirdly, especially with the stress system.
Lesson 1: Phonology and stress:
Samoan's phonology and orthography is as follows. Phonemes and graphemes in parenthesis indicate loan phonemes. Phonemes and graphemes in brackets indicate that the phone is most likely an allophone (see notes)
Consonants:
/p t~k (k) ʔ/ <p t (k) '>
/m n ŋ/ <m n g>
/f v s (h)/ <f v s (h)>
/l~ɾ/ <l/(r)>
[w j] <>
Notes:
In formal speech <t> is pronounced as /t/; however, in more colloquial registers it is pronounced as /k/.
Similarly, while /ŋ/ and /n/ are usually distinguished, in some colloquial registers they are both realized as the velar.
[w j] are allophones of the vowels /u i/ before other vowels.
Vowels:
/ɪ i: ʊ u:/ <i ī u ū>
/ɛ e: ɔ o:/ <e ē o ō>
/a a:/ <a ā>
Diphthongs:
/au ao ai ae ei ou/ <au ao ai ae ei ou>
Diphthongs must distinguished from vowel sequences separated with a glottal stop; for example, there is the minimum pair <lo'u> "my; mine (inalienable)" and <lou> "your; yours (inalienable)".
Stress:
Samoan is a mora-timed language. The stress is almost invariably on the penultimate mora. However, if the final mora is a long vowel, that mora takes the stress. The antepenultimate mora never takes stress.
Exercise 1:
Transcribe the following Samoan text into IPA, using the formal register. Mark stress.:
<Ua 'ou fa'anoanoa lava ona sa 'ou le'i feiloa'i ia te 'oe a'o o'u ui atu i Lepā i le Aso Tofi ai. Sa e alu i Pago i le tausaga talu ai?>
Answer: