No audition requirements beyond the standard application.
Have an official transcript with your undergraduate school academic work sent to your graduate program admission office. This includes any college credit earned in a university not in the United States. Certified copies of all academic work not completed in an English-speaking school should be submitted to the World Evaluation Service (WES), or Education Credential Evaluators (ECE), requesting a Course-by-Course Evaluation. Information regarding WES and ECE is available from the Office of Admission.

Unconditional admission to any program requires a grade-point average of 3.0 or above.
If students are not native English speakers, have official scores on the ACT or the SAT sent to the Office of Admission by the respective agency. If official ACT or SAT testing agencies are not available, students may have official scores on the TOEFL (Test of English as a Foreign Language) or IELTS sent directly from the Educational Testing Service to the Office of Admission. A competitive score of 575 (paper) or 90 (Internet) is expected for TOEFL and 6.5 for IELTS.