METHOD OF EVALUATING ACOUSTIC SAFETY IN LOW AND MEDIUM FREQUENCY RANGES Russian patent published in 2019 - IPC A61B5/12 

FIELD: measurement technology.

SUBSTANCE: invention refers to methods of assessing human life safety, namely to methods for assessing acoustic safety of human vital activity. Method of evaluating acoustic safety in the ranges of medium and low frequencies involves determining the following from the results of measuring the acoustic environment: Δ₁ is the difference between the actual and maximum allowable sound pressure level in the octave frequency band of 31.5 Hz, Δ₂ is the difference between the actual and maximum allowable sound pressure level in the octave frequency band of 63 Hz, Δ₃ is difference between actual and maximum allowable value of sound pressure level in octave frequency band of 125 Hz, Δ₄is difference between actual and maximum allowable value of sound pressure level in octave frequency band of 250 Hz, Δ₅ is difference between actual and maximum allowable value of sound pressure level in octave frequency band of 500 Hz, by values of which calculation of acoustic safety factor is calculated, and by value k, acoustic safety in ranges of medium and low frequencies is evaluated as: unsatisfactory if k<5; satisfactory if 5≤k<15; good if 15≤k<25, or excellent if k≥25.

EFFECT: use of the invention enables providing the possibility of assessing the acoustic safety of human life in the ranges of medium and low frequencies based on the determination of objective estimates of informative indicators.

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