The spelling of the word "Poulson" is dictated by the conventions of English orthography. The IPA phonetic transcription for this word would be /ˈpʊlsən/. The initial letter "P" is pronounced with a voiceless bilabial plosive, while the second syllable is pronounced with a voiced alveolar fricative. The final "n" sound is also pronounced with a voiced alveolar nasal. The orthographic spelling of this word reflects the pronunciation of its various phonemes, which are typical of the English language.