the.com/decibels
The logarithmic ruler that admits human ears measure loudness by ratio, not by addition.
means A unit expressing the ratio between two sound or signal levels on a logarithmic scale, so each ten-point jump means ten times the power.
from Named for Alexander Graham Bell, the bel proved too clunky, so engineers chopped it into tenths: deci-bels, the practical unit that stuck.
Ten not twentyEvery 10 dB is ten times the power.
Loudness warMusic mastered louder feels better, not actually better.
Painful thresholdAround 120 dB sound starts physically hurting ears.