[lapetitejort]

I would like to learn the skill to dodge harmful prolonged sound waves. A technique similar to the safety squint, but with your ears?

[Lanzaa]

The equivalent of safety squints for your hearing would be conscious control of the tensor tympanic muscle. As with safety squints, I don't think there has been much study on the effectiveness.

https://en.wikipedia.org/wiki/Tensor_tympani_muscle