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    stephenzztan Posts: 3, Reputation: 1
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    Apr 23, 2011, 10:58 PM
    Reverberation time (RT)
    The broadband Reverberation Time (RT) for a small lecture theatre of volume 100m3
    is measured at 0.5 secs. The average SPL in the theatre for a certain lecturer is 64 dB.
    Estimate the mean acoustic power of the lecturer's voice.
    (Take: ρ = 1.2 kg/m3 and c = 343m/s).

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