Tag Archives | Acoustics

ACCELEROMETER

A device that measures vibration, or acceleration of various structures.

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ACOUSTIC ABSORPTION

Material, structure or object which absorbs sound energy during collision with sound waves.

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ACOUSTIC ABSORPTION CO

Describes material's ability to absorb sound and is measured over a number of specific frequencies. Result is expressed as a number between 0 (total reflection) and 1 (total absorption). When multiplied by 100, number represents percentage of absorbed sound.

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ACOUSTIC AMPLIFIER

A device which increases mechanical vibrations.

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ACOUSTIC CENTRE

Point from which spherical waves seem to be diverging when the transducer is acting as a source.

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ACOUSTIC COMPLIANCE

Phenomenon reciprocal of acoustic stiffness. Also called acoustic capacita.

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ACOUSTIC DISTORTION

Interaction between the room, the loudspeaker, and the listener.

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ACOUSTIC FILTER

A device which passes only the sound in specific range of frequency, while rejects sound in some other range.

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ACOUSTIC GRATING

A series of rods of equal size arranged in a row with fixed distance which causes sounds with different wavelengths to be diffracted in different directions.

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ACOUSTIC IMPEDANCE

A ratio of sound-pressure amplitude to volume-velocity amplitude through the surface in the acoustic medium.

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