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Acoustics

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

Contributors in Acoustics

Acoustics

damping ratio

Science; Acoustics

Ratio of the actual damping to the critical damping.

frequency interval

Science; Acoustics

Ratio of two frequencies -

attenuation coefficient

Science; Acoustics

Real part of the linear exponent of sound propagation. Note: the unit is the neper per meter.

damage risk criteria

Science; Acoustics

Recommended maximum noise levels for given exposure periods.

active noise control

Science; Acoustics

Reducing unwanted sound electronically. When a sound wave of equal amplitude but opposite sign (180 degree out of phase) is added to the original sound the result is sound cancellation.

FFT lines

Science; Acoustics

Related to the number of sample points in a 'block' of data to be analyzed. For example if the frequency range is DC to 1000 Hz and the number of lines = 400 then each line represents = 2.5 Hz ...

sound spectrum

Science; Acoustics

Representation of the magnitudes (and sometimes of the phases) of the components of a complex sound as a function of frequency.

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