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Marathalayan t1_iy8a1br wrote

Reply to comment by WoodenSporkAudio in Headphone wizardry by SupOrSalad

How can one thing vibrate 2000 times and second and 80 times a second at the same time ? Answer is it does not.

Try superpositioning two waves of 80hz and 2000hz and then you get a pattern of vibration which doesn’t look like 80 and 2000 but it’s a pattern which is the resultant of 80 and 2000. At some parts it’s added I amplitude (at time periods both parts are in the positive cycle and is present in the same time slice. Read superposition to undertand exactly the way in which how this pattern is formed.

Then this pattern of vibration reaches your ear where again different haircells deflect differently as they have different thresholds to produce an auditory signal.

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WoodenSporkAudio t1_iybh2ts wrote

it vibrates quickly while also oscillating slower. back and forth at 80 times per second while going smaller quicker back and forth motions while riding the bigger slower wave... Of course it is a mashup of the two, but it makes two tones, even if it is one combined output at the transducer. It's all in the semantics of how you want to approach and define these things, really.

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