Hi, I’m pretty new to Home Assistant so if this is not the right place to ask please bear with me.
Starting with my HA setup:
On a PC I have installed HA OS on Ubuntu, that PC has an audio jack input for a microphone
I use the media player to play music from either the internet radio or my plex server to a Harman Kardon speaker via Google Cast
I also have a second PC in the same room I use for work and personal use and an old laptop I use to control Home Assistant
What I would like to do is if I play a youtube video (per example, could be anything for that matter) from my personal use PC I want to hear it on my Harman Kardon speaker and stop/replace the current audio playing on the speaker. I now have the speaker jack from my personal use PC connected to the microphone jack input of my Home Assistant OS PC but I cannot seem to find out how to cast that input to my speaker.
Anyone has a solution to what I want to accomplish?