Hi Steve and Rachael,
Three words: automatic gain control.
A sound check before the start of your show would be worthwhile to get a sense of adjustments needed to make sure we can hear both of you. It’s frustrating to only hear Steve’s side of the conversation and not be able to make out a single word of what Rachael’s said.
The first song has started. “It’s OK!”
PS Interesting show on NPR last night!