I have a extra monitor embeebed with speakers and when i change displays, the audio changes alternatively. I can't play Don't Starve Together on my second monitor and use its audio. It always switches to the pc audio and vice versa. Is that a way to force audio and video to be played at the same source?
Just plug a extra monitor with speakers, start the game and see that audio is played in a device and video at the other. If you enter the graphic options, at game menu, and change display 1 to 2 followed by apply button, the audio and video will change as well, making impossible to be played at the same device.