ASMR

Wholesome, gentle, auditory-pleasing sounds meant to calm an individual, put them to sleep, or physically experience an amazing sensation called "tingles" throughout your body. Emphasis on wholesome, BTW.

It has been said that Bob Ross was the first to do ASMR, albeit unintentionally. Then, in the late 00s, ASMR videos finally started taking off on YouTube. These were mainly just simple whispering videos. It was around 2013-14 that people really started experimenting with sounds of various objects and substances (referred to as 'triggers'), whatever made a good sound when you tapped or scratched on it.

Person 1: What's your favorite ASMR trigger?
Person 2: Mines is mic scratching. What about you?
Person 1: I really love rain sounds
Person 2: Cool!