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System Design Tips

Ambience Noise Level Guide

Jet Take-Off 140dB
Rock Concert 130 dB Threshold of pain
Hydraulic Press 120 dB  
Power Mower 100 dB  
Screaming Child 90 dB Ear protection required at 90 dB
Alarm Clock 80 dB  
Vacuum Cleaner 70 dB  
Conversation Speech 60 dB  
Quiet Office 40 dB  
Average Whisper 30 dB  
Normal Breath 10 dB