Equivalent or energy-averaged sound level.
Equivalent continuous sound pressure level. A measure of the average sound pressure level during a period of time, t, in dB
Hourly energy-averaged sound level
the ( A weighted) equivalent continuous sound pressure level, used to quantify the average noise level over a given period the A weighted sound pressure level nT standardised impact sound pressure level nT,w the weighted standardised impact sound pressure level
Equivalent Sound Level: The average energy level of sound over a given period of time. The period of time is normally shown in parenthesis. For example, Leq (8) would be interpreted to mean the average energy level of sound over an 8-hour time period. Leq (h) in text is intended to represent the appropriate number of hours.
Equivalent Sound Level. The steady A-weighted sound level over any specified period of time (not necessarily 24 hours) that has the same acoustic energy as the fluctuating noise during that period (with no consideration of nighttime weighting). It is a measure of cumulative acoustical energy. Because the time interval may vary, it should be specified by a subscript (such as Leq 8 for an 8-hour exposure to noise).
Measure used to express the average sound level (typically expressed in dBA) over a given period of time.
The eight hour time weighted average sound level, expressed in dB. This value takes into account all sound measurement between the threshold level and the Leq upper limit.