Is there a way to make walls dampen out sound from other rooms?

[4EHE]

I am trying to make a house with various different appliances that all have constant sound effects playing, but the sounds play through walls and floors as if they were not there.
For example, if I made a house with a bedroom right above the kitchen, the sound of the refrigerator plays right through the floor. How can I make it so that walls block out or dampen sounds like they do in real life? If it is not currently possible I’d suggest it as a well needed update to the sound system
Another example is a building with fire alarms of various types, how can I make the sound of the alarms on the first floor stay on the first floor so that I can use different alarms on the second floor without the sounds mixing together?

[Operatik]

Raycasting between source and listener should be ideal. I’m not sure on how that works, but you could maybe set an equation on the sound’s volume based on distance and using raycasting to calculate it.

[AstroCode]

Tyridge has a couple posts about this.

What are you working on currently? (2019)

Made a performant queue floodfill algorithm to muffle all sound sources in my game somewhat realistically based on where you are in the voxel grid and what the sound “waves” have interacted with. The farther the path takes, the higher the cost and the more muffled it is. If your head is in clear sight of the sound source, there’s no muffle. If there’s no path at all, it’s very muffled.

Procedural Sound Propagation

Cool so far, I’ve done all this for my projects so feel free to dm if you get stuck on anything. Couple questions out of curiosity? How is performance? You’ve shown us all this but if you want real feedback it’d be helpful to give some benchmarks. Especially because it seems like you’re moving around at 20 frames per second here. This stuff can get tricky when you have a ton of sounds depending on how you’re doing things Is this calculated in real time based on world geometry(with cached c…