CHAPTER 2
Hardware Setup
9
where:
• ξ is a dummy variable of time integration over the averaging time interval
• p
x
(ξ) is the x frequency-weighted instantaneous sound pressure
• p
0
is the reference sound pressure, equal to 20 μPa
2.3.9 Maximum Peak Sound Level
The maximum peak sound level, LxpkMax(T), is defined as the greatest peak sound level, Lxpk(t),
within a time interval starting at t = T and ending at t =T+
Δt where:
• x is A for A-weighted, C for C-weighted
• T is the start time of the measurement
•
Δt is the measuring period, indicated as Elapsed Time
The maximum peak sound level is expressed in decibels (dB).
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