Depending on the type of case and the decision below, appellate review primarily consists of: an entirely new hearing (a non trial de novo); a hearing where the appellate court gives deference to factual findings of the lower court; or review of particular legal rulings made by the lower court (an appeal on the record).
dᵻpˈɛndɪŋ ɔnðə tˈaɪp ʌv kˈeɪs ænd ðə dᵻsˈɪʒən bᵻlˈoʊ, ɐpˈɛlət ɹᵻvjˈuː pɹaɪmˈɛɹᵻli kənsˈɪsts ʌv: ɐn ɛntˈaɪɚli nˈuː hˈɪɹɪŋ ɐ nˈɑːn tɹˈaɪəl də nˈoʊvoʊ; ɐ hˈɪɹɪŋ wˌɛɹ ðɪ ɐpˈɛlət kˈoːɹt ɡˈɪvz dˈɛfɹəns tə fˈæktʃuːəl fˈaɪndɪŋz ʌvðə lˈoʊɚ kˈoːɹt; ɔːɹ ɹᵻvjˈuː ʌv pɚtˈɪkjʊlɚ lˈiːɡəl ɹˈuːlɪŋz mˌeɪd baɪ ðə lˈoʊɚ kˈoːɹt ɐn ɐpˈiːl ɔnðə ɹˈɛkɚd.