The dimensionless ratio of sound energy absorbed by a given surface to that incident upon the surface. (Hirschorn, Martin; Compendium of Noise Engineering - Part I Sound & Vibration Magazine, July 1987.; Sound & Vibration Magazine, July 1987.)

See Also

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01 - The origin of a Musical Sound
02 - The Transmission of Sound
9.12 - Velocity of Sound and its Propagation Rate are Proportional
9.14 - Velocities of Sound in Different Materials
16.06 - Electric Waves are Sound Waves
16.12 - Seebeck Coefficient
Figure 15.01 - Cavitation Bubbles Collapse in Sound Field
Figure 17.02 - Gravity divides multiplies and balances Light and Sound
Figure 9.4 - Radiation and Absorption interactions with Neutral Center
music note or sound colors
Part 26 - Science of Sound Vibration Acoustics and Music
Sound
Sound Power
Sound Pressure
Table 9.1 - Velocity of Sound in various Materials