Considering that a loudspeaker line array results from assembly of separate loudspeaker enclosures, it is important to take the gaps between enclosures into account and the line array is considered as a collection of several line sources of certain height. Particularly at high frequency, since the waveguides are used as the array element to achieve the line sources, the sound field generated by the arrays of waveguides is analyzed. The results are compared with those described in previous works that assumed that the array elements were perfect line sources.
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