To dream that you are at an audition, indicates feelings of insecurity and trouble with expressing yourself. You feel that you are being put to a test and are put in a vulnerable situation. The attitude and behavior of the audience will also guide you in how you think others perceive you.
Some possible meanings include:
An actual, expected, or imagined audition
Feeling evaluated, judged, or "put on the spot" by others
Applying for a job, university, etc.
Wanting approval from others
Being tested
Trying to make a certain impression on others
Participating in a competition