All "p" in these data are allophones of the voiceless bilabial fricative phoneme /ɸ/, which occur in syllable-final position.
All "y" in these data represent IPA [j] (palatal approximant).
The "ê" is between [ɪ] and [e]; similarly the [ô] is between [ʊ] and [o]. These two phonemes are innovations due to assimilation to nearby high vowels (which were then lost).
The "ɛ" here is phonetically between [e] and [ɛ], and the "ɔ" is between [o] and [ɔ].
Acute accent here represents stress on final syllable of root.