The spelling of the name "Aydrien" is unique and can be a bit confusing. It is pronounced as "ai-dree-un". The first syllable "ai" is pronounced as the short "a" sound followed by a long "i" sound, represented as /eɪ/. The second syllable "dree" is pronounced with a long "e" sound, represented as /driː/. The last syllable "un" is pronounced with the short "u" sound, represented as /ʌn/. Overall, the pronunciation of "Aydrien" is a combination of different vowel sounds that create a distinctive name.