First it is important to understand the concept of decibel name as many things are after a person. Every doubling in power is an increase in 3db of capable sound output. The human ear however, recognizes between 6db and 10db as double the volume. If 10db is a perceived twice as loud then 5db is 50% louder 2.5 is 25% louder and so on until we can't tell a difference.

now if you are on the 6db train follow the same logic. It gets messy because hearing is not objective

I loved your answer, thank you very much for your time, I am trying to feel before quantifying or at least I consider it as a complement, if we can feel a sigh or an insect walking on your skin and distinguish between each one I think we can do the same with what causes the sound, it is a very delicate job and I think it takes time but it has to be achieved, thank you again for your time.

it's difficult to talk about the bell because its more subjective than objective