Generally, there is no trial in an appellate court, only consideration of the record of the evidence presented to the trial court and all the pre-trial and trial court proceedings are reviewed—unless the appeal is by way of re-hearing, new evidence will usually only be considered on appeal in "very" rare instances, for example if that material evidence was unavailable to a party for some very significant reason such as prosecutorial misconduct.
dʒˈɛnɚɹəli, ðɛɹ ɪz nˈoʊ tɹˈaɪəl ɪn ɐn ɐpˈɛlət kˈoːɹt, ˈoʊnli kənsˌɪdɚɹˈeɪʃən ʌvðə ɹˈɛkɚd ʌvðɪ ˈɛvɪdəns pɹɪzˈɛntᵻd tə ðə tɹˈaɪəl kˈoːɹt ænd ˈɔːl ðə pɹˈiːtɹˈaɪəl ænd tɹˈaɪəl kˈoːɹt pɹəsˈiːdɪŋz ɑːɹ ɹᵻvjˈuːd—ʌnlˈɛs ðɪ ɐpˈiːl ɪz baɪ wˈeɪ ʌv ɹˌiːhˈɪɹɪŋ, nˈuː ˈɛvɪdəns wɪl jˈuːʒuːəli ˈoʊnli biː kənsˈɪdɚd ˌɔn ɐpˈiːl ˈɪn "vˈɛɹi" ɹˈɛɹ ˈɪnstənsᵻz, fɔːɹ ɛɡzˈæmpəl ɪf ðæt mətˈɪɹiəl ˈɛvɪdəns wʌz ʌnɐvˈeɪləbəl tʊ ɐ pˈɑːɹɾi fɔːɹ sˌʌm vˈɛɹi sɪɡnˈɪfɪkənt ɹˈiːzən sˈʌtʃ ɐz pɹˌɑːsɪkjuːtˈoːɹɪəl mɪskˈɑːndʌkt.