I was installing home equipment for a client recently, and as part of that experience, I led her through how to use Audacity to export an MP3 for submitting as an audition.
She was surprised to find out that I actually care a great deal, and get really picky, about how that audition MP3 file is named.
(And by the way, it works for both .MP3 voice over auditions and .MP4 video on-camera auditions.)
Here’s the skinny.
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Hope this helps!