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Input information:

threshold hearing distance |  \nsource pressure level | 100 dB spl  (decibels sound pressure level)\ndry bulb temperature | 42.8 °F  (degrees Fahrenheit)\nrelative humidity | 52.4%\nair pressure | 1019 mbar  (millibars)\nfrequency | 2500 Hz  (hertz)\ndirectivity factor | spherical

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