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Line arrays and inter-element angles.
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<blockquote data-quote="Phil Graham" data-source="post: 107262" data-attributes="member: 430"><p>Re: Line arrays and inter-element angles.</p><p></p><p></p><p> </p><p>In the far field, arbitrarily far away from even a large array, assuming it is in free space, you end up with point source behavior for any box/array. Nearer the array, and for frequencies where the array is large, we see "less" than the point source behavior. This is due to incoherent summation, which reduces the level relative to what one might see from a point source. The net result is more evenness, but the overall levels near the front are reduced relative to the pure point source case. We aren't currently "beating" point source propagation, we are just slowing the volume increase as we get closer to the array, for an overall improvement in evenness.</p><p></p><p>In rooms, the reverberant field will slow down the decay vs. distance, but once you get out near the critical distance where the direct sound and reverberant field levels are comparable, the perceived sound becomes pretty marginalized quickly.</p></blockquote><p></p>
[QUOTE="Phil Graham, post: 107262, member: 430"] Re: Line arrays and inter-element angles. In the far field, arbitrarily far away from even a large array, assuming it is in free space, you end up with point source behavior for any box/array. Nearer the array, and for frequencies where the array is large, we see "less" than the point source behavior. This is due to incoherent summation, which reduces the level relative to what one might see from a point source. The net result is more evenness, but the overall levels near the front are reduced relative to the pure point source case. We aren't currently "beating" point source propagation, we are just slowing the volume increase as we get closer to the array, for an overall improvement in evenness. In rooms, the reverberant field will slow down the decay vs. distance, but once you get out near the critical distance where the direct sound and reverberant field levels are comparable, the perceived sound becomes pretty marginalized quickly. [/QUOTE]
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