Apple

I have a Samsung TV with Bose 600 soundbar plugged into the TV’s eARC HDMI port. I have my Apple TV plugged in the TV’s HDMI 2 port and the volume goes through the Apple TV instead of the soundbar. In Apple TV audio settings I can choose TV speakers or HomePod mini for default audio or my Bose soundbar under temporary audio output. When I choose Bose, it still uses the TV speakers for audio and switches back to TV speakers in settings. How do I make Apple TV play through Soundbar? I need soundbar directly connected to TV because I am using HD antenna TV.