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Science > Acoustics 
acoustic ohm
Science; Acoustics
Acoustic ohm is a unit of measurement of sound resistance, and is the ratio of the acoustic pressure pa to acoustic volume flow m 3 /s = Pa s/m 3 . These units got their name by ...
rapid speech transmission index (RASTI)
Science; Acoustics
Rapid speech transmission index is an objective way of measuring speech intelligibility. It is measured by placing a loudspeaker, which transmits sound from the location of the ...
early decay time (EDT)
Science; Acoustics
Early decay time is derived from the reverberation time decay curve - the section between 0 dB and 10 dB below the initial level. As it relates to the initial and highest level ...
angular displacement (θ)
Science; Acoustics
Angular displacement is measured in radians rather than degrees. This is because it provides a very simple relationship between distance travelled around the circle and the ...
digital signal processing (DSP)
Science; Acoustics
Digital signal processing is the analysis of digital signal data. The original analogue signal is sampled at regular time intervals, and an analogue to digital converter converts ...
predicted noise level reduction (PNR)
Science; Acoustics
Predicted noise level reduction is the calculated noise level reduction at the ear when using ear protectors, based on the manufacturers' HML figures and the measured noise levels ...
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