Hello Pringle Nugget, Thank you for your audition and I understand the nervousness when it comes to auditioning for a project. There's no need to apologize for the background noise at all. It depends on what you're using for a microphone. A USB microphone will often have a hum or it could be something with the environment like a computer fan. Acting wise, as a producer. I am looking for somebody to give life to my character and that's probably the most important thing I look for. A good microphone is great and a big factor too, but without the right performance.. it kinda falls apart. One thing I would say with your audition is don't be nervous and have fun with the performance especially with the auditions. It's a chance to give life to a character. With Katie, she is trying to cling to some kind of hope, I cannot reveal whatever the story is here, but the situation is that these characters are running for their own survival and that shelter could be a good chance of staying alive. Katie is at least hopeful and trying to keep it together, while a bit scared herself. She doesn't know what to expect herself and it could be doom. I look for that when I do cast, along with a set of criteria for the role. Hopefully this could help you out and I wish you the best of luck with your voice acting adventures.