Question: 1 decibel equals how many hertz?
Answer: db (decibel) The lowest sound audible with a normal (average) hearing is 0 dB (2 ∙ 10-5 pascals as a sound pressure value or 10-12 W/m2 as an intensity value at 1000 Hz). A person with good hearing can hear even weaker sounds (-5 dB).