(adsbygoogle = window.adsbygoogle || []).push({}); I don't understand the math of the 10 fold system. Decibels are the measuring unit for sound energy. The absolute threshold for hearing is arbitrarily defined as zero decibels. Every 10 decibels correspond to a ten-fold increase in sound. Thus, normal conversation (60 dB) is 10,000 time louder than a 20 dB whisper.

Could someone go into detail of it for me?

I just don't see how that works.

10 db = 100

20 = 1000

30 = 10000?

i don't understand the system here.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Medical Psychophysics: Decibels

**Physics Forums | Science Articles, Homework Help, Discussion**