The audience 'erupted in laughter'. = The audience 'burst into laughter'. [=the audience suddenly began laughing]
The audience roared/shrieked/howled with 'laughter'.
peals/gales/shrieks of 'laughter'
(..) right down to King's Landing, they're laughing at us. I hear it in my sleep! I'm not dead yet, unfortunately for you. And I'll not leave this world until they all choke on that laughter. Take that castle back. He'll never yield, Father. Oh, he'll yield. You'll show him the knife you used (..)2016 TvShow: Game of Thrones Title: Blood of My Blood Season: 6 Episode 6