Sound
dB value -- p /
p0
3 dB – 1.414:1
6 dB – 2:1
20 dB – 10:1
40 dB – 100:1
120 dB – 1,000,000 :1
Hearing in the regime 0…160 dB = 1…108 !!!
Compression by
logarithmic scale !