The spelling of the surname "Schoenrock" can be confusing due to the variation in its pronunciation. Using the IPA phonetic transcription, the correct spelling can be broken down as /ˈʃoʊn.rɑk/. The "oe" in Schoen is pronounced as /oʊ/ while the "ck" in Rock is pronounced as /k/. It is important to note that different regions and dialects may pronounce the name differently, but the IPA transcription provides a reliable guide for correct spelling.