mix_code = ghb_lookup_combo_int("AudioMixdown", ghb_string_value("dpl2"));
mix_code = ghb_get_best_mix( titleindex, track, acodec_code, mix_code);
ghb_ui_update(ud, "AudioMixdown", ghb_int64_value(mix_code));
mix_code = ghb_lookup_combo_int("AudioMixdown", ghb_string_value("dpl2"));
mix_code = ghb_get_best_mix( titleindex, track, acodec_code, mix_code);
ghb_ui_update(ud, "AudioMixdown", ghb_int64_value(mix_code));