The spelling of the name "Audreen" can be explained using the International Phonetic Alphabet (IPA) transcription system. The first syllable of the name is pronounced as "ɔː", which is a long vowel sound. The second syllable is pronounced as "drin", with the "dr" combination being pronounced as "dʒr". Lastly, the "een" at the end is pronounced as "iːn", with a long "e" sound. Therefore, the IPA transcription for "Audreen" would be /ɔːdʒriːn/.