Pronunciation: [ɹˈɔ͡ɪd͡ʒə] (IPA)
Correct spelling for the English word "Roiger" is [ɹˈɔ͡ɪd͡ʒə], [ɹˈɔɪdʒə], [ɹ_ˈɔɪ_dʒ_ə] (IPA phonetic alphabet).