0dB - Human threshold of hearing (youths) 10dB - Soft rustling of leaves 20dB - Whisper at 1 meter 30dB - Very soft music 40dB - Quiet office or residential area 50dB - Large office background noise 60dB - Normal conversation, background music 70dB - Freeway traffic, TV audio 80dB - Moderate home stereo, ringing telephone 90dB - Lawnmower, loud home stereo 100dB - Motorcycle 110dB - Moderate rock concert, dance club 120dB - Really loud rock concert, jackhammer 130dB - Human Threshold of Pain 140db - Jet engine 150db - Fireworks 160dB - Perforation of eardrum 170dB - Shotgun blast up close 180dB - Rocket launch up close