Acoustics

Acoustics

Of or pertaining to the study of mechanical waves in all stages of matter including sounds, vibration, ultrasounds, and infrasound.

Industry: Physics; Science

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Acoustics

horsepower (HP)

Science; Acoustics

A foot pounds per second unit of power, 1 hp equal to 550 fps = 746 watts

dodecahedron

Science; Acoustics

A general dodecahedron is a polyhedron having 12 faces. Acoustic examples are dodecahedron and hemi-dodecahedron loudspeakers arrange to provide isotropic sound sources

directivity pattern

Science; Acoustics

A graphical description, usually in polar co-ordinates, of the response of the transducer as a function of the direction of the transmitted or incident sound waves in a specified plane and at a ...

percentile levels (Ln)

Science; Acoustics

Percentage exceeded levels where 'n' is between 0.1 and 99.9% calculated by statistical analysis. - may also include other descriptors i.e. A, C, L or Z weightings. Most common Ln values are ...

Ln

Science; Acoustics

Percentile level where 'n' is between 0.01 and 99.9% calculated by statistical analysis. Usually include a descriptor i.e. A-weighting. Most common Ln values are LA10 and LA90 levels.

Periodic wave having a fixed distribution in space that is the result of interference of progressive waves of the same frequency and kind. Note: such waves are characterized by the existence of nodes ...

phase cancellation

Science; Acoustics

Phase cancellation occurs when two signals of the same frequency are out of phase with each other resulting in a net reduction in the overall level of the combined signal.