Every 3 decibels represents a halving of the acoustic power.
From the newscientist.com
Each ISU can provide 400 watts of acoustic power to provide speaker coverage in the designated buildings of the school.
From the sfgate.com
The horn also improves impedance matching between the voice and the air, which produces more acoustic power for a given speaker power.
From the en.wikipedia.org
Sound power level or acoustic power level is a logarithmic measure of the sound power in comparison to a specified reference level.
From the en.wikipedia.org
A beamformer is usually employed to concentrate the acoustic power into a beam, which may be swept to cover the required search angles.
From the en.wikipedia.org
Lighthill's eighth power law states that the acoustic power radiated by a jet engine is proportional to the eighth power of the jet speed.
From the en.wikipedia.org
They were able to detect both metal and plastic mines but said that the system will have to get a major boost in acoustic power before minefield searchers can use it safely.
From the sciencedaily.com
As used by architectural acousticians to describe noise inside a building, typical noise measurements in SWL are very small, less than 1 watt of acoustic power.
From the en.wikipedia.org
As a result, many machines deliver acoustic power that can be at least 30 per cent adrift of the level they are set to deliver, according to Stephen Pye, a medical physicist in Edinburgh.