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Science > Acoustics 
power spectrum level
Science; Acoustics
The level of the power in a band one hertz wide referred to a given reference power.
fourier spectrum
Science; Acoustics
The line spectrum resulting from an FFT analysis is equally spaced, so the time signal is analyzed in constant bandwidths. The analyzer analyzes the time signal in blocks and each ...
vibration parameters
Science; Acoustics
The main vibration parameters are acceleration, velocity, displacement.
maximum sound level (lmax)
Science; Acoustics
The maximum noise level during a measurement period or a noise event. Should also include other descriptors i.e. A, C, L or Z weightings and F, S or I time constants. Sometimes ...
serial frequency analysis
Science; Acoustics
The measurement of octave or third octave bands of noise where a single filter is stepped across the different bands one at a time, suitable mainly for steady noise signals only. ...
amplification factor (Q)
Science; Acoustics
The mechanical gain of a structure when excited at a resonant frequency. The amplification factor is a function of the system damping. For a damping ratio = 0 (no damping) the ...
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