The spelling of the word "Eckmann" is quite straightforward when using the International Phonetic Alphabet (IPA). The word is pronounced as [ɛkmɑn], with the first syllable being pronounced with the short "e" sound as in "pet." The second syllable is pronounced with a long "a" sound, as in "father." The final two letters, "nn," are pronounced with a nasal sound, as in "win." Therefore, the correct spelling of "Eckmann" reflects the phonetic sounds of the word.