Sound Power and Pressure Measurement
Though standards do exist for measuring and reporting sound power output by such things as computer components, they are often ignored. Many manufacturers do not give sound power measurements. Some report sound pressure measurements, but those that do often do not specify how sound pressure measurements were taken. Even such basic information as measurement distance is rarely reported. Without knowing how it was measured, it is not possible to verify these claims, and comparisons between such measurements (e.g. for product selection) are meaningless. Comparative reviews, which test several devices under the same conditions are more useful. Although even then, an average sound pressure level is only one factor in determining which components will be perceived as quieter.
Read more about this topic: Quiet PC
Famous quotes containing the words sound, power, pressure and/or measurement:
“It was the unfailing and characteristic sound of those lakes.”
—Henry David Thoreau (1817–1862)
“His nature is too noble for the world;
He would not flatter Neptune for his trident,
Or Jove for’s power to thunder.”
—William Shakespeare (1564–1616)
“Amid the pressure of great events, a general principle gives no help.”
—Georg Wilhelm Friedrich Hegel (1770–1831)
“That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.”
—John Dos Passos (1896–1970)