What did you just say?
You guys really need to text LOUDER
... I can't hear a thing. LOL!
There are 2 main forms of noticeable hearing damage:
1) Threshold shifts (i.e. quiet things that can no longer be heard.)
2) Ringing/Squealing (this can also cause quiet things to not be heard, and other higher frequencies.)
3) and Chronic earpain in extreme cases.
Like radiation, the damage is accumulative. (It only ever gets worse
with more exposure.)
Depends on exposure-time and the magnitude of the exposure. (The louder, the worse. The more often, the worse.)
Shockwaves are a common cause of immediate, and often permanent hearing loss.
Things like: guns, sonic booms, dynamite, diving rapidly to the bottom of a pool or ocean floor.
These types of events rip the eardrum. Ultimately this causes discomfort or for it to rip open at quieter and quieter levels.
The more damaged your ear is, the more painful sounds become at lower levels. (Generally: Old people hate loudness, because it Hz.)
That's another sign you've damaged your ears, the sensation of pain. (or... that you are about to, that is!)
Power tools, lawn mowing, factory equipment, and large engines ALL cause damage if you are around them for 8 hours every day until retirement; at no point is being exposed to it making your ears "better" or tougher... (Tougher, to hear things maybe. LOL!)
If you job is a miner, and your hobby is death metal and power tools. Your ears are toast!
Just because you can now hear again after that rock concert, doesn't mean your ears weren't damaged. Just wait a few decades.
High frequencies are more damaging than lower frequencies because of how our ears are physically constructed.
The perception of loudness is a whole nother ball of wax.
For the most part: Distorted sound, sounds MUCH louder than undistorted sound.
Annoying sounds, are MUCH louder than pleasant/welcoming sounds.
Alarm clocks are the number 1 cause of heart failures. (Sound can
Your kids phone/tablet isn't loud, it's just distorted and annoying. It's maybe hitting 80-90db tops.
It's not ACTUALLY loud. But it is
500% distortion (and is
annoying 5-second repetitive mind-dulling garbage.)
Turn that "loud stuff" down.
In fact, turn that "loud stuff" OFF... or go to your ROOM.
1-20hz is so difficult to make loud that there is pretty much no chance of you going deaf by it.
60-300hz might only take 120-130db to cause rapid damage.
30hz, maybe upwards of 160db... YMMV
High SPL is risky...
But no risk, no reward. (YOLO!