I was watching this video when I came upon this question: wether it be high frequency or low frequency, sound waves are made of high pressure and low pressure areas (they are waves, after all).
I mean: they are not equal at every point.
However, it doesn't seem like we can distinct high pressure from low pressure areas in a sound wave. Is that correct? For example, when the sound from the linked video starts, we only hear a continuous sound (it doesn't seem to stop or be wavering at any point, even though the frequency changes).
Why is that? My guess is our ears or brains somehow translate this information into something continuous, but I'm not sure.