Neither the characters nor the audience hear what is being said.
Was the piece the audience heard a decade old, or brand new?
I used to have an audience of 100 or 200 people to hear me speak.
The audience heard, but appeared more interested in the other blade.
All the audience can hear is the sound of themselves.
The audience does not hear her voice until the season finale.
But, she said, "I'm learning to let the audience hear the person and make their own decisions."
They take the responsibility of making sure the audience can see and hear the performers.
The audience have apparently heard it all before and there was little response.
Of course, that's not what the audience heard him say.