Send audio to both monitors in extend mode

Let’s a say I have a computer running Windows 11 connected to two TVs, in extend mode instead of duplicate, with an Intel CPU and integrated display adapter. I have several rooms like this, so the exact audio adapter may vary but it’s generally shows in device manager as either a basic realtek chip or Intel Display Audio.

With this equipment, I can easily choose in Windows to have the audio output go to one TV or the other.

Is there a way I can send the audio to both, without needing additional equipment?

I know it will do both if I use “duplicate” mode, but I want the screens extended.