ThomasA wrote on Mon, 09 August 2004 05:47 |
Hello everyone! As Tako Tamas has proposed in the other thread on delaying subs, I think it's worth opening another one on how to align subs properly to the mains speakers. Assuming a pretty standard configuration for small fan-shaped venues with flown L/R mains and a center- and ground-stacked pack of subwoofers, how would you properly align one to the other? Of special interest to me is, where you would chose to measure - basically where the points in space are - to align the subs to the tops. Thinking about a "piece of pie" - or a segment of a circle - one can align the mains and subs to each other, so that sound arrives at the perimeter of this segment at the same time. From a theoretical point of view and assuming we want to have the perfect alignment for the largest part of the audience possible, it would be logical to measure at the last row of the audience, since the perimeter of the segment - and therefore the number of people on this line - would be the longest there. |
ThomasA wrote on Mon, 09 August 2004 05:47 |
Practically, wall-reflections and body absorption due to the punters will make measurements at the very back of the venue close to impossible, I imagine. Also, the difference in running-time between two sound sources that are spaced apart from each other will become more insignificant with added distance. So, where would you choose to take the measurements and delay the mains and subs to each other - first row; first third of the audience area; FOH; ?? Your insight and help on this is very much appreciated! Maybe you could also explain in how far the situation changes with a rectangular venue shape or the incorporation of a center mains cluster. I wonder if, considering the Haas-effect, it could also be worth to conciously allowe eg. the center-mains cluster to arrive first, then the L/R and last the subs, to focus the audience's attention on the center of the stage and to the vocals (assuming that the center-cluster is mostly used for vocals) I know these are many questions at a time, but even partial enlightment would be very helpful. Thanks for sharing! Thomas |
ThomasA wrote on Mon, 09 August 2004 05:47 |
Hello everyone! As Tako Tamas has proposed in the other thread on delaying subs, I think it's worth opening another one on how to align subs properly to the mains speakers. snip From a theoretical point of view and assuming we want to have the perfect alignment for the largest part of the audience possible, it would be logical to measure at the last row of the audience, since the perimeter of the segment - and therefore the number of people on this line - would be the longest there. Practically, wall-reflections and body absorption due to the punters will make measurements at the very back of the venue close to impossible, I imagine. Also, the difference in running-time between two sound sources that are spaced apart from each other will become more insignificant with added distance. So, where would you choose to take the measurements and delay the mains and subs to each other - first row; first third of the audience area; FOH; ?? snip I know these are many questions at a time, but even partial enlightment would be very helpful. Thanks for sharing! Thomas |