| law |
energy equivalent sound level (The Leq is the average weighted sound level over a specified period of time. It is a single-number representation of the cumulative acoustical energy measured over a time interval. The time interval used should be specified in brackets following the Leq?e.g., Leq (9) is a 9-hour Leq. If a sound level is constant over the measurement period, the Leq will equal the constant sound level. If the sound level shows a variety of constant levels for different intervals, then fi is the fraction of time the constant level Li, is present.  noisesolutions.com Alexander Demidov) |
