Source

 Sound Pressure  Level  (dB)

 Large Rocket (nearby)
 180 to 194
 Jet Aircraft, Artillery Fire
 150
 Shotgun Blast
 145
 Propeller Aircraft
 140
 Pneumatic Riveter, Jackhammer,  Pain Threshold
 130
 Rock Concert, Thunder,  Automobile Horn
 120
 Construction Noise
 110
 Subway Train
 100
 Heavy Truck, Niagra Falls
  90
 Noisy Office, Noisy Restaurant
  80
 Busy Traffic, Normal Radio
  70
 Normal Conversation,  Dishwasher
  60
 Quiet Office
  50
 Library
  40
 Soft Whisper
  30
 Rustling Leaves
  20
 Normal Breathing
  10

 Let P be the measured rms pressure level. The sound pressure level (SPL) in decibels (dB) is:
 The speed of sound in air is 1125 feet/sec (343 meters/sec)
 assuming a temperature of 70 degrees F (21 degrees C) and
 a pressure of 1 atmosphere.

 More Acoustic Information - Vibrationdata.com Pages

 Acoustics Software and Tutorials

 
  Other Vibrationdata.com Pages:    Home | Links | Butterworth | Services | Piano