How is bass something that we can audibly hear and also physically feel?
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Sound is just variations of air pressure. Like, super-fast tiny gusts of wind going back and forth. Bass and treble refers to the frequency of the sound, or how many times per second the air pressure goes back and forth. We can hear sounds that oscillate back and forth up to 20,000 times per second, or as low as 20 times per second.
Low frequency sounds require more energy to produce because you have to move a lot more air around to create them. Therefore, there is more energy associated with those waves. If they’re loud enough, you can feel the air pressure vibrations on your skin. If they’re really loud, the air pressure variations can move your hair or clothes around. Although, if that’s happening, you desperately need hearing protection.
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