Vibrotactile beats

Sorry for a bit off-topic post, but I can thing of no other community centered around sex toys and engineering / science.

I just got my first Edge 2.
The toy has two motors and if I set the it so that one motor is between one and few steps faster than the other, my body experiences a wavy sensation of really low frequency, 1 or few HZ (hard to measure).

It reminds me of similar phenomenon with different audio tones played via headphones, called binaural beats. I did a little research and there’s a thing called “vibrotactile beats”. Turns out they experiment with vibrators (they call it ERM motors) attached to wrists - which means they don’t have to be close to each other! And the psychological effects are supposed be the same as with binaural beat…

If anyone has any sources related with such use of sex toys, I’d be grateful for some links. If anyone wants to share their experiences, I’d love to read it, if it’s too off topic, DMs welcome.


BTW (and on-topic)
where intiface/buttplug.io takes its config for Lovense devices? I didn’t see any details in the config files. I’m only asking bc sometimes intiface shows 16 steps and other times 20 for one of the motors.

PS
Thank you team for this great software!