Soundproofing – Decibel (Loudness) Comparison Table

Soundproofing – Decibel (Loudness) Comparison Table

Here are some interesting figures, that can help you to understand the volume levels of various sources and how they can affect our hearing.

Loudest Sound Possible 194 dB
Death of Hearing Tissue 180 dB
Jet Take-Off 140 dB
Pneumatic Hammer 130 dB
Pain Level 120 dB
Klaxon 100 dB
Machine Workshop 90 dB
Noisy Pub 80 dB
Noisy Office 70 dB
Human Conversation 60 dB
Standard Home Ambient 50 dB
Silent Bedroom 30 dB

Perceptions of Increases in Decibel Level

Imperceptible Change 1 dB
Barely Perceptible Change 3 dB
Clearly Noticeable Change 5 dB
About Twice as Loud 10 dB
About Four Times as Loud 20 dB