[Ryokan]

However, all the studies seem to agree the ultrasonic content is inaudible and has no conscious effect.

G

Ultrasound is being used to treat patients: 'Low intensity Focused Ultrasound is an emerging method for treating major depressive disorders'. So sound we can't hear could be influencing us.

https://www.openaccessgovernment.or...rasound-for-major-depressive-disorder/150031/

​

 

[bigshot]

It won’t make Mozart better.

 

[Ryokan]

But it might cheer you up

 

[gregorio]

Ultrasound is being used to treat patients

Sure, it’s been used to treat patients for many years. Focused ultrasound causes stimulation/vibration in whatever you focus it on. At fairly high intensity they’ve been using ultrasound for many years to break up Gall and Kidney stones. Not sure what any of this has to do with very low intensity ultrasound output by speakers/HPs that we can’t hear though?

G