The instantaneous sound pressure is the deviation from the local ambient pressure caused by a sound wave at a given location and given instant in time.
The effective sound pressure is the root mean square of the instantaneous sound pressure over a given interval of time (or space).
Total pressure is given by:
where:
- = local ambient atmospheric (air) pressure,
- = sound pressure deviation.
Read more about this topic: Sound Pressure
Famous quotes containing the words sound and/or pressure:
“He who wants to persuade should put his trust not in the right argument, but in the right word. The power of sound has always been greater than the power of sense.”
—Joseph Conrad (1857–1924)
“I am convinced that our American society will become more and more vulgarized and that it will be fragmentized into contending economic, racial and religious pressure groups lacking in unity and common will, unless we can arrest the disintegration of the family and of community solidarity.”
—Agnes E. Meyer (1887–1970)