Why is it that during loud concerts you feel the bass in your chest but not the higher notes despite them being the same volume.
In: 153
There are 2 factors at play. 1) hearing and 2) feeling.
Sound is difference in air pressure that is traveling. For ELI5 purposes we could exaggerate and observe it from your standing / listening position as wind blowing in your chest for 1s and in your back the next and so forth.
1) for your brain and listening sensor (ear drum) to hear sound the direction of the wind must change between 20 times / second to 20.000 times / second. That gets picked up and interpreted as sound.
2) to feel the sound there are 2 factors at play. Your sense of feel and your body resonance.
As you can feel the wind on your skin mostly with the help of your body hair so you can extremely low and loud (powerful) sound as it can push back and forward your hair. And to understand resonance in general: imagine being on a swing as a kid. When you time your balance just right with leaning backwards and forwards you produce movement. But you have to time it right, catching the resonance. If you lean forward and backwards 10x per second the swing will not move.
Now your body is ful of systems that eatch have theyr own resonance (a frequency of change in air pressure that it responds to). That goes for your hair, the air-chamber that are your lungs, your guts etc. Why you can feel the bas is because your body parts resonance is within bass range 0-200 hz (my wild gess, i dont know the number exactly) high tunes change airpressure more than 1000 times per second thus like you being on a swing mooving balance back and forth too quickly. You put in a lot of work but no result, thuss no feeling.
Hope i didnt get to complicated for an ELI5!
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