Casting Audio to Roku Streaming Stick Plus

Hey Everyone. I hope I am posting this in the right section.

I took the time today to figure out how to cast from my Windows 11 PC to my Roku Streaming Stick + Model 3810x. It works beautifully. Only issue is that the audio is still coming from my PC. I am hoping that someone here has some suggestions on how to also get the audio to stream from my PC to my Roku Streaming Stick so that I can see the video and hear the audio both from my TV.

Thank You