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Science > Acoustics

artificial ear

Science; Acoustics

Device for the calibration of earphones, incorporating a calibrated microphone for the measurement of sound pressure and an acoustic coupler such that the overall acoustic ...

artificial mastoid

Science; Acoustics

Device which simulates the mechanical impedance of the average human mastoid where a bone vibrator may be applied to permit calibration of the vibrator.

aliasing

Science; Acoustics

Digital sampling requires an analogue signal is sampled at twice the frequency of interest otherwise aliasing occurs. If the signal is not filtered to eliminate the high ...

white finger

Science; Acoustics

Disorder of the hands caused by using hand-held tools, such as chain saws and jack hammers. Results in reduction of the hand's ability to feel or to regulate its temperature. May ...

minimum Sound Level (Lmin)

Science; Acoustics

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 written as Min dB(A).