My band is scheduled to do our first concert in a week and I conducted a test broadcast in the room we will be hosting our show. I noticed that vocals were clipping and I wasn't even on mic. I'm part of a 7-piece band and I'm starting to get nervous about how we will sound to our fans. I'm using a Macbook Pro to broadcast using the internal mic.
That is a function of your internal mic on your MacBook being overwhelmed by a 7 piece band. You can adjust the input level in your system preferences. to compensate.