| 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | 6000 Hz | |
| 0 dB | rustling | leaves | |||||
| 10 dB | |||||||
| f,s,th | |||||||
| 20 dB | small waves | on a beach | whispering | ||||
| k | |||||||
| 30 dB | z, v | p,h,g | tick of a | watch | |||
| b, d | ch | ||||||
| 40 dB | y | m, n, b, d | ee, a o r | talking | |||
| sh | |||||||
| 50 dB | ay, oo, l | lecturing | |||||
| air | |||||||
| 60 dB | conditioner | baby crying | |||||
| 70 dB | |||||||
| 80 dB | dog | howling | piano | ||||
| phone | |||||||
| 90 dB | |||||||
| 100 dB | lawn mower | buz saw | |||||
| 110 dB | truck engine | leaf blower | helicopter | ||||
| 120 dB | Rock Concert | Jet Plane |
lesson here |
Email: ehall@csun.edu