Shaggy rug Pet-friendly alternative to a shaggy rug for room acoustics?

Hi everyone,

I recently adopted a dog from an abusive background. While he is settling in, he has a habit of peeing on the stereo room shaggy rug, which means the rug has to go.

That rug did a fantastic job of softening the sound in my stereo room, making the high end sweet and non-harsh. Now that it is gone, the room is too reflective.

Are there any effective floor-based sound dampening solutions that are either pet-accident resistant or significantly easier to clean than a shaggy carpet? parquet maybe ? I am trying to tame first reflections without creating a hygiene nightmare.

Appreciate any suggestions?