system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 If two people are singing next to each other at the same volume, how does this affect the volume? Does it double / stay the same / somewhere in the middle?

How would progressively increasing the number of singers impact the volume?
gpt
The volume does actually double, but we cannot perceive it as doubled. We would need about 10 singers to hear them twice as loud than one. Many things in our perception work logarithmic (I hope this is the correct word in english).