system
Given the following post, respond as if you're commenting on Reddit:
human
Why does applying a little pressure to my earbuds make the bass sounds so much louder?

I am using the stock Ipod headphones, so they're very lame. Normally, they have almost no bass. Almost as bad as my laptop- 90% treble. However, if I press on them a little bit, it's like adding a subwoofer to my headphones. I considered the fact that simply the added volume makes it easier to hear the bass, but the high notes don't seem to be affected really. Just the low ones. 

If this question makes sense to anyone, do you have an explanation for it?
gpt
All sound waves are based on changes in pressure. Low frequency (that we hear as bass) have a longer time between the high and low pressure points of a wave. 
When you press the ear buds into your ears, your forming a better seal, so the air cannot escape. So the low frequency seems louder because your not allowing any of the pressure to escape from your ear canal. 
High frequency doesn't react in the same way since there is not enough time for pressure to leak out. 
You might want to try a different sized ear-bud, or a different sized rubber tip to them, that fits your ear better.