Working day-night time common level, DNL or LDN: This measurement assesses the cumulative publicity to sound for any 24-hour interval (Leq above 24 hrs) on the calendar year, that has a ten dB(A) penalty or fat extra to nighttime noise measurements provided the improved sensitivity to noise in the evening. https://quietliving99886.acidblog.net/63165546/rumored-buzz-on-soundproofing