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PA Loudspeaker Directivity    1/1, 1/3

Strutt|Input Data|Empirical|Typical PA Loudspeaker Directivity inserts the typical directivity index (in dB) of an outdoor-type PA system (e.g. for an industrial plant) into the current row of the worksheet.

Strutt implements the directivity as a function of angle by interpolating in Table 8.13 of Laymon Miller

Reference: Laymon Miller Noise Control for Buildings and Manufacturing Plants, p8-13

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