2020 saw lots of audio acquisitions particularly around podcast content and ad-tech. If you were a big boy, or wanted to be, you got out the chequebook and started buying.
Spotify was the poster-boy for this (Gimlet, Parcast, Megaphone) but there was also iHeart buying Voxnest, SiriusXM getting Stitcher and a loads of others too.
One of the issues has been large companies were running out of big podcast companies to buy. In the content space, one of the top indies left was Wondery, and just before the New Year Amazon announced they were snaffling it up.