The correct spelling of "Hartlage" is ˈhɑːrt.lədʒ, with emphasis on the first syllable. The letter "h" is pronounced as /h/, followed by the long "a" sound of /ɑː/. The "rt" is pronounced as /rt/ with a rolled "r" sound, followed by the soft "l" sound of /l/ and a short "a" sound of /ə/. The last part, "age", is pronounced as /dʒ/ to form the word. It is important to use the correct spelling and phonetic transcription to accurately represent names and words.