Reverb Baking - Strange numbers

[mingmingboulter]

Going through reverb baking tutorial.

The RT's do not seem right.
Initially RT's are around 3 seconds. Without touching ANYTHING (materials, dimensions, reverb probe), I bake the model and I lose a second overall...what the hell is going on?

[mingmingboulter]

I am also trying to add a reverb component to a train tunnel (approx 250m long) and the reverb probe is giving me a RT of 0.2 seconds. I have acoustic components to the relevant surfaces already.
Whats going on?

[yeroro]

Going through reverb baking tutorial.

The RT's do not seem right.
Initially RT's are around 3 seconds. Without touching ANYTHING (materials, dimensions, reverb probe), I bake the model and I lose a second overall...what the hell is going on?

The initial 3 seconds I think are designed so that you'd see changes when you go through the tutorial. After the first bake, you can try baking multiple times, see if the numbers stay relatively stable (in my experience they do).

[yeroro]

I am also trying to add a reverb component to a train tunnel (approx 250m long) and the reverb probe is giving me a RT of 0.2 seconds. I have acoustic components to the relevant surfaces already.
Whats going on?

What are the other dimensions of your tunnel? What are the surface materials you are using?

[mingmingboulter]

I am also trying to add a reverb component to a train tunnel (approx 250m long) and the reverb probe is giving me a RT of 0.2 seconds. I have acoustic components to the relevant surfaces already.
Whats going on?

What are the other dimensions of your tunnel? What are the surface materials you are using?

The tunnel is 5m in diameter. I've assigned the 95% of the tunnel concrete (Walls), there are some pipes there too (assigned them as metal)