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About Noise reduction

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Working day-night time typical degree, DNL or LDN: This measurement assesses the cumulative exposure to sound for your 24-hour period of time (Leq over 24 hrs) with the calendar year, using a 10 dB(A) penalty or body weight extra to nighttime noise measurements offered the increased sensitivity to noise at https://georgesc318ivm0.win-blog.com/profile

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