Think like cellos and thunder and other low sounds. Why are they relaxing?
I’m also talking out of my ass, but it could be because on a subconscious level it reminds us of being in the womb when all sounds were perceived through basically a low pass filter.
I’ve heard that’s why babies respond to shushing and vacuum cleaners. Apparently it’s a similar sound to the blood flow heard from inside the body
They mimic the voices coming out of relaxed chests and throats.
But extremely low bass isn’t relaxing. It mimics the sound of very large predators.
Completely talking out of my ass, but bass is generally much lower frequency and higher frequencies are more energetic.
Same with light: infrared we perceive as just heat, then as frequency increases it becomes visible red, and as you go up you get blue and violet and UV, which starts burning your skin very easily.
We know blue light affects sleep and reds are much more pleasing at night, so logically I’d expect something similar to be valid for sound as well. And we use ultrasound to clean stuff just like we use UV to sterilize stuff.
