Related Clues:

• Noise unit declared current Big Ben perhaps must be curtailed
• Measure of sound from one who's pretty outspoken
• 'A deep, fierce droning, louder by many -------s than the noise of wasps' (Stella Gibbons, The Shadow of the Sorcerer)
• The French and British decorated on return — measure of applause?
• Level of noise kept to a minimum in childbirth
• I relate to volume, having to choose large book for one daughter
• Unit relating to sound intensity
• Decibel-intensity measure
• Unit named for a telephone pioneer
• ___ Air
• - - and the Dragon, apocryphal book
• Measure for comparing intensity of noises
• A measurement of sound
• Sound level unit
• Sound from tenth ringer cut short