Quiet PC - Sound Power and Pressure Measurement

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:

    In spite of all her faults her name was so holy to him that it had never once passed his lips since her death, except in low whispers to himself,—low whispers made in the perfect, double-guarded seclusion of his own chamber. “Cora, Cora,” he had murmured, so that the sense of the sound and not the sound itself had come to him from his own lips.
    Anthony Trollope (1815–1882)

    The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.
    Thomas Hobbes (1588–1679)

    He who is of a calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.
    Plato (c. 427–347 B.C.)

    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)