Local Audio on HDMI from Host

I am trying to set up a zoom meeting at a facility where 200 people will attend.  I will host the meeting from this room.  I need to have the local audio of the mics in this room to be in the HDMI audio.  Is there a way to set this up.  The remote user can hear my mics, but I cannot put the local mic input into the house PA.  Is there a way around this?